54ACT11280 [TI]
9-BIT PARITY GENERATORS/CHECKERS; 9位奇偶发生器/跳棋
| 型号： | 54ACT11280 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 9-BIT PARITY GENERATORS/CHECKERS |
| 文件： | 总5页 (文件大小：99K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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ꢌ ꢍꢎꢏ ꢄꢊ ꢐꢂꢑꢏ ꢄ ꢒꢊꢓ ꢔ ꢕꢔꢑꢂꢄꢖ ꢑꢗꢘ ꢃꢙꢔ ꢃꢚ ꢔ ꢑꢗ
ꢛ
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SCAS046A − D3148, AUGUST 1988 − REVISED APRIL 1993
54ACT11280 . . . J PACKAGE
74ACT11280 . . . D OR N PACKAGE
• Inputs Are TTL-Voltage Compatible
• Generates Either Odd or Even Parity for
(TOP VIEW)
Nine Data Lines
• Cascadable for n-Bits Parity
B
A
C
D
E
V
1
2
3
4
5
6
7
14
13
12
11
10
9
• Flow-Through Architecture Optimizes
Σ ODD
GND
Σ EVEN
NC
PCB Layout
CC
• Center-Pin V
and GND Configurations
Minimize High-Speed Switching Noise
CC
F
G
H
• EPICt (Enhanced-Performance Implanted
I
8
CMOS) 1-mm Process
• 500-mA Typical Latch-Up Immunity
at 125°C
54ACT11280 . . . FK PACKAGE
(TOP VIEW)
• Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
3
2
1
20 19
18
G
C
NC
B
4
5
6
7
8
NC
H
description
17
16
15
14
These universal, monolithic, 9-bit parity
generators/checkers feature odd and even
outputs to facilitate operation of either an odd or
NC
I
NC
A
9 10 11 12 13
even parity application.
The word-length
capability is easily expanded by cascading.
The 54ACT11280 is characterized for operation
over the full military temperature range of − 55°C
to 125°C. The 74ACT11280 is characterized for
operation from − 40°C to 85°C.
NC − No internal connection
†
logic symbol
FUNCTION TABLE
NUMBER OF INPUTS
A THRU I
THAT ARE HIGH
OUTPUTS
2
A
2k
S EVEN
S ODD
1
B
0, 2, 4, 6, 8
1, 3, 5, 7, 9
H
L
L
14
C
H
13
D
5
3
Σ EVEN
Σ ODD
12
E
10
F
9
G
8
H
7
I
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
EPIC is a trademark of Texas Instruments Incorporated.
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Copyright 1993, Texas Instruments Incorporated
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2−1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
ꢀ ꢁꢂ ꢃ ꢄ ꢅꢅ ꢆꢇ ꢈ ꢉ ꢊ ꢋ ꢁꢂ ꢃꢄ ꢅꢅ ꢆ ꢇꢈ
ꢌ ꢍꢎ ꢏ ꢄ ꢊꢐꢂ ꢑ ꢏꢄ ꢒꢊ ꢓꢔ ꢕ ꢔꢑ ꢂꢄꢖ ꢑꢗ ꢘꢃ ꢙꢔ ꢃꢚꢔ ꢑꢗ
ꢛ
ꢛ
SCAS046A − D3148, AUGUST 1988 − REVISED APRIL 1993
logic diagram (positive logic)
2
A
1
B
14
C
5
Σ EVEN
13
D
12
E
10
F
3
Σ ODD
9
G
8
H
7
I
Pin numbers shown are for the D, J, and N packages.
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
CC
Input voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V
+ 0.5 V
+ 0.5 V
I
CC
CC
Output voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V
O
Input clamp current, I (V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
IK
I
I
CC
Output clamp current, I
(V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
OK
O O CC
Continuous output current, I (V = 0 to V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Continuous current through V
O
O
CC
CC
or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00 mA
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2−2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
ꢀ ꢁ ꢂꢃꢄ ꢅꢅ ꢆ ꢇ ꢈ ꢉꢊ ꢋ ꢁꢂ ꢃꢄ ꢅꢅꢆ ꢇꢈ
ꢌ ꢍꢎꢏ ꢄꢊ ꢐꢂꢑꢏ ꢄ ꢒꢊꢓ ꢔ ꢕꢔꢑꢂꢄꢖ ꢑꢗꢘ ꢃꢙ ꢔ ꢃꢚ ꢔ ꢑꢗ
ꢛ
ꢛ
SCAS046A − D3148, AUGUST 1988 − REVISED APRIL 1993
recommended operating conditions
54ACT11280
74ACT11280
UNIT
MIN
4.5
2
MAX
MIN
4.5
2
MAX
V
V
V
V
V
Supply voltage
5.5
5.5
V
V
CC
IH
IL
High-level input voltage
Low-level input voltage
Input voltage
0.8
0.8
V
0
0
V
V
0
0
V
V
V
I
CC
CC
Output voltage
V
O
CC
CC
I
I
High-level output current
Low-level output current
Input transition rise or fall rate
Operating free-air temperature
−24
24
−24
24
mA
mA
ns/V
°C
OH
OL
Dt/Dv
0
10
0
10
T
− 55
125
− 40
85
A
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
T
A
= 25°C
54ACT11280
74ACT11280
PARAMETER
TEST CONDITIONS
V
UNIT
CC
MIN
4.4
TYP
MAX
MIN
4.4
MAX
MIN
4.4
5.4
3.8
4.8
MAX
4.5 V
5.5 V
4.5 V
5.5 V
5.5 V
I
I
= − 50 mA
OH
5.4
5.4
3.94
4.94
3.7
= − 24 mA
V
OH
OH
V
4.7
{
{
3.85
I
I
= − 50 mA
OH
5.5 V
4.5 V
5.5 V
4.5 V
5.5 V
5.5 V
3.85
= − 75 mA
OH
0.1
0.1
0.1
0.1
0.1
0.1
I
= 50 mA
OL
OL
0.36
0.36
0.5
0.44
0.44
I
= 24 mA
V
OL
V
0.5
{
1.60
I
I
= 50 mA
OL
{
5.5 V
5.5 V
5.5 V
1.65
1
= 75 mA
OL
I
I
V = V
or GND
0.1
8
1
mA
mA
I
I
CC
V = V
or GND,
I = 0
O
160
80
CC
I
CC
One input at 3.4 V,
Other inputs at GND or V
}
5.5 V
0.9
1
1
mA
pF
DI
CC
CC
C
V = V
CC
or GND
5 V
3.5
i
I
†
‡
Not more than one output should be tested at a time and the duration of the test should not exceed 10 ms.
This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or V
.
CC
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
T
A
= 25°C
TYP
7.3
54ACT11280
74ACT11280
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
UNIT
ns
MIN
1.5
1.5
1.5
1.5
MAX
10.8
12.5
10.8
12.4
MIN
1.5
1.5
1.5
1.5
MAX
13.1
15.6
12.9
15.7
MIN
1.5
1.5
1.5
1.5
MAX
12.2
14.3
12.1
14.3
t
t
t
t
PLH
PHL
PLH
PHL
Any input
Any input
S EVEN
S ODD
8.8
7.3
ns
8.6
2−3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
ꢀ ꢁꢂ ꢃ ꢄ ꢅꢅ ꢆꢇ ꢈ ꢉ ꢊ ꢋ ꢁꢂ ꢃꢄ ꢅꢅ ꢆ ꢇꢈ
ꢌ ꢍꢎ ꢏ ꢄ ꢊꢐꢂ ꢑ ꢏꢄ ꢒꢊ ꢓꢔ ꢕ ꢔꢑ ꢂꢄꢖ ꢑꢗ ꢘꢃ ꢙꢔ ꢃꢚꢔ ꢑꢗ
ꢛ
ꢛ
SCAS046A − D3148, AUGUST 1988 − REVISED APRIL 1993
operating characteristics, V
= 5 V, T = 25°C
A
CC
PARAMETER
TEST CONDITIONS
= 50 pF, f = 1 MHz
L
TYP
UNIT
pF
C
Power dissipation capacitance
C
56
pd
PARAMETER MEASUREMENT INFORMATION
3 V
0 V
Input
(see Note B)
1.5 V
1.5 V
t
t
From Output
Under Test
PHL
PLH
V
OH
In-Phase
Output
50% V
50% V
CC
CC
V
C
= 50 pF
L
OL
500 Ω
(see Note A)
t
PLH
t
PHL
V
OH
50% V
CC
Out-of-Phase
Output
50% V
CC
V
OL
VOLTAGE WAVEFORMS
LOAD CIRCUIT
NOTES: A.
C includes probe and jig capacitance.
L
B. Input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z = 50 Ω, t = 3 ns, t = 3 ns.
O
r
f
C. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
2−4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
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