74AC259 [ONSEMI]

8−Bit Addressable Latch; 8位可寻址锁存器
74AC259
型号: 74AC259
厂家: ONSEMI    ONSEMI
描述:

8−Bit Addressable Latch
8位可寻址锁存器

锁存器
文件: 总11页 (文件大小:121K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
MC74AC259, MC74ACT259  
8−Bit Addressable Latch  
The MC74AC259/74ACT259 is a high−speed 8−bit addressable  
latch designed for general purpose storage applications in digital  
systems. It is a multifunctional device capable of storing single line  
data in eight addressable latches, and also a 1−of−8 decoder and  
demultiplexer with active HIGH outputs. The device also incorporates  
an active LOW Common Clear for resetting all latches, as well as an  
active LOW Enable. It is functionally identical to the ALS259 8−bit  
addressable latch.  
http://onsemi.com  
PDIP−16  
N SUFFIX  
CASE 648  
16  
Serial−to−Parallel Conversion  
Eight Bits of Storage with Output of Each Bit Available  
Random (Addressable) Data Entry  
Active High Demultiplexing or Decoding Capability  
Easily Expandable  
1
SOIC−16  
D SUFFIX  
CASE 751B  
16  
16  
1
1
Common Clear  
Pb−Free Packages are Available  
SOEIAJ−16  
M, MEL SUFFIX  
CASE 966  
V
CC  
MR  
E
D
Q
7
Q
Q
Q
4
6
5
16  
15  
14  
13  
12  
11  
10  
9
DEVICE MARKING INFORMATION  
See general marking information in the device marking  
section on page 9 of this data sheet.  
1
2
3
4
5
6
7
8
ORDERING INFORMATION  
A
0
A
1
A
2
Q
0
Q
1
Q
2
Q
3
GND  
See detailed ordering and shipping information in the package  
dimensions section on page 9 of this data sheet.  
Figure 1. Pinout: 16−Lead Packages Conductors  
(Top View)  
E
D
A
0
A
1
A
2
MR Q  
Q Q Q Q Q Q Q  
1 2 3 4 5 6 7  
0
Figure 2. Logic Symbol  
MODE SELECT TABLE  
E
MR  
Mode  
L
H
L
H
H
L
Addressable Latch  
Memory  
Active HIGH 8−Channel Demultiplexer  
Clear  
H
L
H = HIGH Voltage Level  
L = LOW Voltage Level  
© Semiconductor Components Industries, LLC, 2005  
1
Publication Order Number:  
November, 2005 − Rev. 6  
MC74AC259/D  
MC74AC259, MC74ACT259  
MODE SELECT−FUNCTION TABLE  
Inputs  
Outputs  
Operating  
Mode  
MR  
L
E
H
D
X
A
A
A
Q
Q
Q
Q
Q
Q
Q
Q
7
0
1
2
0
1
2
3
4
5
6
Master Reset  
X
X
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
d
d
d
L
H
L
L
L
H
L
L
L
Q = d  
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
Q = d  
Demultiplex  
(Active HIGH  
Decoder when  
D = H)  
L
L
Q = d  
L
L
L
d
H
H
H
L
L
L
L
L
Q = d  
Store  
(Do Nothing)  
H
H
X
X
X
X
q
q
q
q
q
q
q
q
0
1
1
2
3
4
5
6
7
H
H
H
L
L
L
d
d
d
L
H
L
L
L
H
L
L
L
Q = d  
q
q
q
q
3
q
3
q
3
q
4
q
4
q
4
q
5
q
5
q
5
q
6
q
6
q
6
q
7
q
7
q
7
2
q
q
Q = d  
0
2
q
1
Q = d  
0
Addressable  
Latch  
H
L
d
H
H
H
q
0
q
1
q
2
q
3
q
4
q
5
q
6
Q = d  
H = HIGH Voltage Level  
L = LOW Voltage Level  
X = Immaterial  
d = HIGH or LOW Data one setup time prior to the LOW−to−HIGH Enable transition  
q = Lower case letters indicate the state of the referenced output established during the last cycle in which it was addressed  
or cleared.  
FUNCTIONAL DESCRIPTION  
Inthe one−of−eight decoding or demultiplexing mode, the  
addressed output will follow the state of the D input with all  
other outputs in the LOW state. In the clear mode all outputs  
are LOW and unaffected by the address and data inputs.  
When operating the MC74AC/ACT259 as an addressable  
latch, changing more than one bit of the address could  
impose a transient wrong address. Therefore, this should  
only be done while in the memory mode. The Mode Select  
Function Table summarizes the operations of the  
MC74AC/ACT259.  
The MC74AC259/74ACT259 has four modes of  
operation as shown in the Mode Selection Table. In the  
addressable latch mode, data on the Data line (D) is written  
into the addressed latch. The addressed latch will follow the  
data input with all non−addressed latches remaining in their  
previous states in the memory mode. All latches remain in  
their previous state and are unaffected by the Data or  
Address inputs.  
http://onsemi.com  
2
MC74AC259, MC74ACT259  
Q
7
Q
6
Q
5
MR  
Q
4
Q
3
Q
2
Q
1
A
A
2
1
A
0
D
E
Q
0
NOTE: This diagram is provided only for the understanding of logic  
operations and should not be used to estimate propagation delays.  
Figure 3. Logic Diagram  
http://onsemi.com  
3
MC74AC259, MC74ACT259  
MAXIMUM RATINGS  
Symbol  
Parameter  
Value  
Unit  
V
V
V
V
DC Supply Voltage (Referenced to GND)  
−0.5 to +7.0  
CC  
DC Input Voltage (Referenced to GND)  
DC Output Voltage (Referenced to GND)  
DC Input Current, per Pin  
−0.5 to V +0.5  
V
IN  
CC  
−0.5 to V +0.5  
V
OUT  
CC  
I
I
I
20  
50  
mA  
mA  
mA  
°C  
IN  
DC Output Sink/Source Current, per Pin  
OUT  
CC  
DC V or GND Current per Output Pin  
50  
CC  
T
stg  
Storage Temperature  
−65 to +150  
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit  
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,  
damage may occur and reliability may be affected.  
RECOMMENDED OPERATING CONDITIONS  
Symbol  
Parameter  
Min  
2.0  
4.5  
0
Typ  
5.0  
5.0  
Max  
6.0  
Unit  
AC  
V
V
Supply Voltage  
V
V
CC  
ACT  
5.5  
, V  
OUT  
DC Input Voltage, Output Voltage (Ref. to GND)  
V
CC  
IN  
V
CC  
V
CC  
V
CC  
V
CC  
V
CC  
@ 3.0 V  
@ 4.5 V  
@ 5.5 V  
@ 4.5 V  
@ 5.5 V  
150  
40  
25  
10  
8.0  
Input Rise and Fall Time (Note 1)  
AC Devices except Schmitt Inputs  
ns/V  
t , t  
r
f
Input Rise and Fall Time (Note 2)  
ACT Devices except Schmitt Inputs  
t , t  
ns/V  
r
f
T
J
Junction Temperature (PDIP)  
Operating Ambient Temperature Range  
Output Current − High  
140  
85  
°C  
°C  
T
A
−40  
25  
I
I
−24  
24  
mA  
mA  
OH  
OL  
Output Current − Low  
1. V from 30% to 70% V ; see individual Data Sheets for devices that differ from the typical input rise and fall times.  
IN  
CC  
2. V from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.  
IN  
http://onsemi.com  
4
 
MC74AC259, MC74ACT259  
DC CHARACTERISTICS  
74AC  
74AC  
T =−40°C to +85°C  
A
V
(V)  
CC  
T
A
= +25°C  
Symbol  
Parameter  
Unit  
Conditions  
Typ  
Guaranteed Limits  
V
V
V
3.0  
4.5  
5.5  
1.5  
2.25  
2.75  
2.1  
3.15  
3.85  
2.1  
3.15  
3.85  
V
= 0.1 V  
Minimum High Level  
Input Voltage  
IH  
OUT  
V
V
V
or V − 0.1 V  
CC  
3.0  
4.5  
5.5  
1.5  
2.25  
2.75  
0.9  
1.35  
1.65  
0.9  
1.35  
1.65  
V
OUT  
= 0.1 V  
Maximum Low Level  
Input Voltage  
IL  
or V − 0.1 V  
CC  
3.0  
4.5  
5.5  
2.99  
4.49  
5.49  
2.9  
4.4  
5.4  
2.9  
4.4  
5.4  
I
= −50 μA  
Minimum High Level  
Output Voltage  
OH  
OUT  
*V = V or V  
IH  
IN  
IL  
3.0  
4.5  
5.5  
2.56  
3.86  
4.86  
2.46  
3.76  
4.76  
−12 mA  
−24 mA  
−24 mA  
V
V
I
OH  
V
OL  
3.0  
4.5  
5.5  
0.002  
0.001  
0.001  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
I
= 50 μA  
OUT  
Maximum Low Level  
Output Voltage  
*V = V or V  
IN  
IL  
IH  
3.0  
4.5  
5.5  
0.36  
0.36  
0.36  
0.44  
0.44  
0.44  
12 mA  
24 mA  
24 mA  
V
I
OL  
I
IN  
Maximum Input  
Leakage Current  
5.5  
0.1  
1.0  
μA  
V = V , GND  
I
CC  
I
I
I
5.5  
5.5  
75  
mA  
mA  
V
V
= 1.65 V Max  
= 3.85 V Min  
†Minimum Dynamic  
Output Current  
OLD  
OHD  
CC  
OLD  
−75  
OHD  
Maximum Quiescent  
Supply Current  
5.5  
8.0  
80  
μA  
V
= V or GND  
IN CC  
*All outputs loaded; thresholds on input associated with output under test.  
†Maximum test duration 2.0 ms, one output loaded at a time.  
NOTE:  
I
IN  
and I @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V V  
.
CC  
CC  
http://onsemi.com  
5
MC74AC259, MC74ACT259  
AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)  
74AC  
74AC  
T
= −40°C  
A
T
= +25°C  
V
(V)  
*
Fig.  
No.  
A
CC  
to +85°C  
C = 50 pF  
Symbol  
Parameter  
Unit  
C = 50 pF  
L
L
Min  
Typ  
Max  
Min  
Max  
Propagation Delay  
D to Q  
3.3  
5.0  
2.0  
2.0  
9.0  
6.5  
14.5  
10.0  
1.5  
1.5  
17.0  
11.5  
t
t
t
t
t
t
t
ns  
ns  
ns  
ns  
ns  
ns  
ns  
3−5  
3−5  
3−6  
3−6  
3−6  
3−6  
3−7  
PLH  
n
n
Propagation Delay  
D to Q  
3.3  
5.0  
2.0  
2.0  
9.0  
6.0  
13.5  
9.5  
1.5  
1.5  
16.0  
11.0  
PHL  
PLH  
PHL  
PLH  
PHL  
PHL  
n
n
Propagation Delay  
E to Q  
3.3  
5.0  
2.0  
2.0  
10.5  
7.0  
15.0  
10.5  
1.5  
1.5  
17.5  
12.5  
n
Propagation Delay  
E to Q  
3.3  
5.0  
2.0  
2.0  
8.0  
7.5  
12.5  
9.0  
1.5  
1.5  
15.0  
11.0  
n
Propagation Delay  
Address to Q  
3.3  
5.0  
2.0  
2.0  
12.0  
8.0  
19.0  
13.0  
1.5  
1.5  
22.5  
15.5  
n
Propagation Delay  
Address to Q  
3.3  
5.0  
2.0  
2.0  
10.0  
7.0  
16.0  
11.0  
1.5  
1.5  
19.0  
13.0  
n
Propagation Delay  
MR to Q  
3.3  
5.0  
2.0  
2.0  
8.0  
6.0  
12.0  
9.0  
1.5  
1.5  
13.5  
10.0  
*Voltage Range 3.3 V is 3.3 V 0.3 V.  
*Voltage Range 5.0 V is 5.0 V 0.5 V.  
AC OPERATING REQUIREMENTS  
74AC  
74AC  
T
= +25°C  
T
A
= −40°C to +85°C  
C = 50 pF  
L
V
(V)  
*
Fig.  
No.  
A
CC  
Symbol  
Parameter  
Unit  
C = 50 pF  
L
Typ  
Guaranteed Minimum  
Setup Time, HIGH or LOW  
D to E  
n
3.3  
5.0  
3.5  
2.5  
4.5  
3.5  
t
t
t
t
t
t
ns  
ns  
ns  
ns  
ns  
ns  
3−9  
3−9  
3−6  
3−6  
3−6  
3−6  
s
Hold Time, HIGH or LOW  
D to E  
n
3.3  
5.0  
2.5  
2.0  
2.5  
2.0  
h
s
Setup Time  
Address to E  
3.3  
5.0  
7.0  
4.0  
9.0  
6.0  
Hold Time  
Address to E  
3.3  
5.0  
2.0  
2.0  
2.0  
2.0  
h
w
w
Minimum Pulse  
Width MR  
3.3  
5.0  
6.0  
5.5  
6.5  
6.0  
Minimum Pulse  
Width E  
3.3  
5.0  
6.5  
5.5  
7.0  
6.0  
*Voltage Range 3.3 V is 3.3 V 0.3 V.  
*Voltage Range 5.0 V is 5.0 V 0.5 V.  
http://onsemi.com  
6
MC74AC259, MC74ACT259  
DC CHARACTERISTICS  
74ACT  
74ACT  
T = −40°C to +85°C  
A
V
(V)  
CC  
T
= +25°C  
Symbol  
Parameter  
Unit  
Conditions  
A
Typ  
Guaranteed Limits  
V
V
V
4.5  
5.5  
1.5  
1.5  
2.0  
2.0  
2.0  
2.0  
V
= 0.1 V  
Minimum High Level  
Input Voltage  
IH  
OUT  
V
V
V
or V − 0.1 V  
CC  
4.5  
5.5  
1.5  
1.5  
0.8  
0.8  
0.8  
0.8  
V
OUT  
= 0.1 V  
Maximum Low Level  
Input Voltage  
IL  
or V − 0.1 V  
CC  
4.5  
5.5  
4.49  
5.49  
4.4  
5.4  
4.4  
5.4  
I
= −50 μA  
Minimum High Level  
Output Voltage  
OH  
OUT  
*V = V or V  
IH  
IN  
IL  
4.5  
5.5  
3.86  
4.86  
3.76  
4.76  
V
V
−24 mA  
−24 mA  
I
I
OH  
V
OL  
4.5  
5.5  
0.001  
0.001  
0.1  
0.1  
0.1  
0.1  
= 50 μA  
OUT  
Maximum Low Level  
Output Voltage  
*V = V or V  
IN  
IL  
IH  
4.5  
5.5  
0.36  
0.36  
0.44  
0.44  
V
24 mA  
24 mA  
I
OL  
I
IN  
Maximum Input  
Leakage Current  
5.5  
0.1  
1.0  
μA  
V = V , GND  
I CC  
ΔI  
Additional Max. I /Input  
5.5  
5.5  
5.5  
0.6  
1.5  
75  
mA  
mA  
mA  
V = V − 2.1 V  
CCT  
CC  
I
CC  
I
V
OLD  
V
OHD  
= 1.65 V Max  
†Minimum Dynamic  
Output Current  
OLD  
I
−75  
= 3.85 V Min  
OHD  
CC  
I
Maximum Quiescent  
Supply Current  
5.5  
8.0  
80  
μA  
V = V or GND  
IN CC  
*All outputs loaded; thresholds on input associated with output under test.  
†Maximum test duration 2.0 ms, one output loaded at a time.  
AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)  
74ACT  
74ACT  
T
= +25°C  
T
A
= −40°C to +85°C  
C = 50 pF  
L
V
(V)  
*
Fig.  
No.  
A
CC  
Symbol  
Parameter  
Unit  
C = 50 pF  
L
Min  
Typ  
Max  
Min  
Max  
Propagation Delay  
D to Q  
t
t
t
t
t
t
t
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
2.0  
6.5  
11.0  
1.5  
12.5  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
3−5  
3−5  
3−6  
3−6  
3−6  
3−6  
3−7  
PLH  
n
n
Propagation Delay  
D or Q  
2.0  
2.0  
2.0  
2.0  
2.0  
2.0  
7.0  
10.5  
9.0  
10.5  
14.0  
12.0  
11.5  
10.0  
10.0  
1.5  
1.5  
1.5  
1.5  
1.5  
1.5  
12.0  
16.5  
14.0  
13.5  
12.0  
11.0  
PHL  
PLH  
PHL  
PLH  
PHL  
PHL  
n
n
Propagation Delay  
E to Q  
n
Propagation Delay  
E or Q  
n
Propagation Delay  
Address to Q  
8.0  
n
Propagation Delay  
Address to Q  
6.0  
n
Propagation Delay  
MR to Q  
*Voltage Range 5.0 V is 5.0 V 0.5 V.  
http://onsemi.com  
7
MC74AC259, MC74ACT259  
AC OPERATING REQUIREMENTS  
74ACT  
74ACT  
T
= +25°C  
T
A
= −40°C to +85°C  
C = 50 pF  
L
V
(V)  
*
Fig.  
No.  
A
CC  
Symbol  
Parameter  
Unit  
C = 50 pF  
L
Typ  
Guaranteed Minimum  
Setup Time, HIGH or LOW  
D to E  
n
t
t
t
t
t
t
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
3.0  
2.5  
4.5  
2.5  
7.0  
7.0  
4.0  
ns  
ns  
ns  
ns  
ns  
ns  
3−9  
3−9  
3−6  
3−6  
3−6  
3−6  
s
h
s
h
Hold Time, HIGH or LOW  
D to E  
n
2.5  
6.5  
2.5  
7.5  
7.5  
Setup Time  
Address to E  
Hold Time  
Address to E  
Minimum Pulse  
Width MR  
w
w
Minimum Pulse  
Width E  
*Voltage Range 5.0 V is 5.0 V 0.5 V.  
CAPACITANCE  
Symbol  
Value  
Typ  
Parameter  
Unit  
Test Conditions  
C
C
Input Capacitance  
Power Dissipation Capacitance  
4.5  
pF  
pF  
V
V
= 5.0 V  
= 5.0 V  
IN  
CC  
50.0  
PD  
CC  
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8
MC74AC259, MC74ACT259  
MARKING DIAGRAMS  
SO−16  
DIP−16  
EIAJ−16  
MC74AC259N  
AWLYYWWG  
AC259G  
AWLYWW  
74AC259  
ALYWG  
ACT259G  
AWLYWW  
MC74ACT259N  
AWLYYWWG  
A
= Assembly Location  
WL, L = Wafer Lot  
YY, Y = Year  
WW, W = Work Week  
= Pb−Free Device  
G
ORDERING INFORMATION  
Part Number  
Package  
Shipping  
MC74AC259N  
PDIP−16  
25 Units/Rail  
25 Units/Rail  
MC74AC259NG  
PDIP−16  
(Pb−Free)  
MC74AC259D  
SOIC−16  
48 Units/Rail  
48 Units/Rail  
MC74AC259DG  
SOIC−16  
(Pb−Free)  
MC74AC259DR2  
SOIC−16  
2500 Tape & Reel  
2500 Tape & Reel  
MC74AC259DR2G  
SOIC−16  
(Pb−Free)  
MC74AC259M  
SOEIAJ−16  
50 Units/Rail  
50 Units/Rail  
MC74AC259MG  
SOEIAJ−16  
(Pb−Free)  
MC74AC259MEL  
MC74AC259MELG  
SOEIAJ−16  
2000 Tape & Reel  
2000 Tape & Reel  
SOEIAJ−16  
(Pb−Free)  
MC74ACT259N  
PDIP−16  
25 Units/Rail  
25 Units/Rail  
MC74ACT259NG  
PDIP−16  
(Pb−Free)  
MC74ACT259D  
SOIC−16  
48 Units/Rail  
48 Units/Rail  
MC74ACT259DG  
SOIC−16  
(Pb−Free)  
MC74ACT259DR2  
MC74ACT259DR2G  
SOIC−16  
2500 Tape & Reel  
2500 Tape & Reel  
SOIC−16  
(Pb−Free)  
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging  
Specifications Brochure, BRD8011/D.  
http://onsemi.com  
9
MC74AC259, MC74ACT259  
PACKAGE DIMENSIONS  
PDIP−16  
N SUFFIX  
CASE 648−08  
ISSUE T  
NOTES:  
−A−  
1. DIMENSIONING AND TOLERANCING PER  
ANSI Y14.5M, 1982.  
2. CONTROLLING DIMENSION: INCH.  
3. DIMENSION L TO CENTER OF LEADS  
WHEN FORMED PARALLEL.  
4. DIMENSION B DOES NOT INCLUDE  
MOLD FLASH.  
16  
1
9
8
B
S
5. ROUNDED CORNERS OPTIONAL.  
INCHES  
DIM MIN MAX  
0.740 0.770 18.80 19.55  
MILLIMETERS  
F
C
L
MIN MAX  
A
B
C
D
F
0.250 0.270  
0.145 0.175  
0.015 0.021  
6.35  
3.69  
0.39  
1.02  
6.85  
4.44  
0.53  
1.77  
SEATING  
PLANE  
−T−  
0.040  
0.70  
G
H
J
K
L
0.100 BSC  
2.54 BSC  
1.27 BSC  
K
M
0.050 BSC  
0.008 0.015  
0.110 0.130  
0.295 0.305  
H
J
0.21  
0.38  
3.30  
7.74  
10  
G
2.80  
7.50  
0
D 16 PL  
M
M
0.25 (0.010)  
T A  
M
S
0
10  
_
_
_
_
0.020 0.040  
0.51  
1.01  
SOIC−16  
D SUFFIX  
CASE 751B−05  
ISSUE J  
−A−  
NOTES:  
1. DIMENSIONING AND TOLERANCING PER ANSI  
Y14.5M, 1982.  
2. CONTROLLING DIMENSION: MILLIMETER.  
3. DIMENSIONS A AND B DO NOT INCLUDE  
MOLD PROTRUSION.  
16  
9
−B−  
P 8 PL  
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)  
PER SIDE.  
M
S
B
0.25 (0.010)  
1
8
5. DIMENSION D DOES NOT INCLUDE DAMBAR  
PROTRUSION. ALLOWABLE DAMBAR  
PROTRUSION SHALL BE 0.127 (0.005) TOTAL  
IN EXCESS OF THE D DIMENSION AT  
MAXIMUM MATERIAL CONDITION.  
G
MILLIMETERS  
INCHES  
MIN  
0.386  
DIM MIN  
MAX  
MAX  
0.393  
0.157  
0.068  
0.019  
0.049  
F
A
B
C
D
F
9.80  
3.80  
1.35  
0.35  
0.40  
10.00  
R X 45  
K
_
4.00 0.150  
1.75 0.054  
0.49 0.014  
1.25 0.016  
C
G
J
1.27 BSC  
0.050 BSC  
−T−  
SEATING  
PLANE  
0.19  
0.10  
0
0.25 0.008  
0.25 0.004  
0.009  
0.009  
7
J
M
K
M
P
R
D
16 PL  
7
0
_
_
_
_
5.80  
0.25  
6.20 0.229  
0.50 0.010  
0.244  
0.019  
M
S
S
A
0.25 (0.010)  
T
B
http://onsemi.com  
10  
MC74AC259, MC74ACT259  
PACKAGE DIMENSIONS  
SOEIAJ−16  
M SUFFIX  
CASE966−01  
ISSUE A  
NOTES:  
1. DIMENSIONING AND TOLERANCING PER ANSI  
Y14.5M, 1982.  
2. CONTROLLING DIMENSION: MILLIMETER.  
3. DIMENSIONS D AND E DO NOT INCLUDE MOLD  
FLASH OR PROTRUSIONS AND ARE MEASURED  
AT THE PARTING LINE. MOLD FLASH OR  
PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006)  
PER SIDE.  
L
16  
9
E
Q
1
H
E
M
_
4. TERMINAL NUMBERS ARE SHOWN FOR  
REFERENCE ONLY.  
E
5. THE LEAD WIDTH DIMENSION (b) DOES NOT  
INCLUDE DAMBAR PROTRUSION. ALLOWABLE  
DAMBAR PROTRUSION SHALL BE 0.08 (0.003)  
TOTAL IN EXCESS OF THE LEAD WIDTH  
DIMENSION AT MAXIMUM MATERIAL CONDITION.  
DAMBAR CANNOT BE LOCATED ON THE LOWER  
RADIUS OR THE FOOT. MINIMUM SPACE  
BETWEEN PROTRUSIONS AND ADJACENT LEAD  
TO BE 0.46 ( 0.018).  
1
8
L
DETAIL P  
Z
D
VIEW P  
e
MILLIMETERS  
INCHES  
MIN  
−−−  
A
DIM MIN  
MAX  
MAX  
0.081  
0.008  
0.020  
0.011  
0.413  
0.215  
c
A
−−−  
0.05  
0.35  
0.10  
9.90  
5.10  
2.05  
A
1
0.20 0.002  
0.50 0.014  
0.20 0.007  
b
c
D
E
10.50 0.390  
5.45 0.201  
A
1
b
0.13 (0.005)  
e
1.27 BSC  
0.050 BSC  
0.10 (0.004)  
M
H
7.40  
0.50  
1.10  
8.20 0.291  
0.85 0.020  
1.50 0.043  
0.323  
0.033  
0.059  
E
L
L
E
M
Q
0
10  
0.90 0.028  
10  
_
0.035  
0.031  
0
_
_
_
0.70  
−−−  
1
Z
0.78  
−−−  
ON Semiconductor and  
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice  
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability  
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.  
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All  
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights  
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications  
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should  
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,  
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death  
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal  
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.  
PUBLICATION ORDERING INFORMATION  
LITERATURE FULFILLMENT:  
N. American Technical Support: 800−282−9855 Toll Free  
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ON Semiconductor Website: http://onsemi.com  
Order Literature: http://www.onsemi.com/litorder  
Literature Distribution Center for ON Semiconductor  
P.O. Box 61312, Phoenix, Arizona 85082−1312 USA  
Phone: 480−829−7710 or 800−344−3860 Toll Free USA/Canada  
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Phone: 81−3−5773−3850  
For additional information, please contact your  
local Sales Representative.  
MC74AC259/D  

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