74ABT16646DGG [NXP]
16-bit bus transceiver/register 3-State; 16位总线收发器/寄存器三态
| 型号： | 74ABT16646DGG |
| 厂家： | 
NXP |
| 描述： | 16-bit bus transceiver/register 3-State |
| 文件： | 总12页 (文件大小：98K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74ABT16646
74ABTH16646
16-bit bus transceiver/register (3-State)
Product specification
1998 Feb 27
Supersedes data of 1995 Aug 17
IC23 Data Handbook
Philips
Semiconductors
Philips Semiconductors
Product specification
74ABT16646
74ABTH16646
16-bit bus transceiver/register (3-State)
FEATURES
• Independent registers for A and B buses
DESCRIPTION
The 74ABT16646 high–performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
• Multiple VCC and GND pins minimize switching noise
• Live insertion/extraction permitted
• Power–up 3-State
The 74ABT16646 16-bit transceiver/register consists of two sets of
bus transceiver circuits with 3-State outputs, D-type flip-flops, and
control circuitry arranged for multiplexed transmission of data
directly from the input bus or from the internal registers. Data on the
A or B bus will be clocked into the registers as the appropriate clock
pin goes High. Output Enable (nOE) and Direction (nDIR) pins are
provided to control the transceiver function. In the transceiver mode,
data present at the high impedance port may be stored in either the
A or B register or both.
• Power–up reset
• Multiplexed real-time and stored data
• Outputs sink 64mA and source 32mA
• Latch–up protection exceeds 500mA per JEDEC Std 17
The select (nSAB, nSBA) pins determine whether data is stored or
transferred through the device in real-time. The nDIR determines
which bus will receive data when the nOE is active Low. In the
isolation mode (nOE = High), data from Bus A may be stored in the
B register and/or data from Bus B may be stored in the A register.
When an output function is disabled, the input function is still
enabled and may be used to store and transmit data. Only one of
the two buses, A or B may be driven at a time.
• 74ABTH16646 incorporates bus-hold data inputs which eliminate
the need for external pull-up resistors to hold unused inputs
• ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
Two options are available, 74ABT16646 which does not have the
bus-hold feature and 74ABTH16646 which incorporates the
bus-hold feature.
QUICK REFERENCE DATA
CONDITIONS
= 25°C; GND = 0V
SYMBOL
PARAMETER
TYPICAL
UNIT
T
amb
t
t
Propagation delay
nAx to nBx
3.3
2.7
PLH
PHL
C = 50pF; V = 5V
ns
L
CC
C
Input capacitance
I/O capacitance
V = 0V or V
CC
3
7
pF
pF
IN
I
C
V
= 0V or V ; 3-State
O CC
I/O
Outputs disabled; V =5.5V
550
9
µA
mA
CC
I
Quiescent supply current
CCZ
Outputs low; V =5.5V
CC
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
SOT371-1
56-Pin Plastic SSOP Type III
56-Pin Plastic TSSOP Type II
56-Pin Plastic SSOP Type III
56-Pin Plastic TSSOP Type II
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
74ABT16646 DL
74ABT16646 DGG
74ABTH16646 DL
74ABTH16646 DGG
BT16646 DL
BT16646 DGG
BH16646 DL
SOT364-1
SOT371-1
BH16646 DGG
SOT364-1
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
Clock input A to B / Clock input B to A
Select input A to B / Select input B to A
Direction control inputs
2, 55, 27, 30
3, 54, 26, 31
1, 28
1CPAB, 1CPBA, 2CPAB, 2CPBA
1SAB, 1SBA, 2SAB, 2SBA
1DIR, 2DIR
5, 6, 8, 9, 10, 12, 13, 14
15, 16, 17, 19, 20, 21, 23, 24
1A0 – 1A7,
2A0 – 2A7
Data inputs/outputs (A side)
Data inputs/outputs (B side)
52, 51, 49, 48, 47, 45, 44, 43
42, 41, 40, 38, 37, 36, 34, 33
1B0 – 1B7,
2B0 – 2B7
56, 29
1OE, 2OE
GND
Output enable inputs
Ground (0V)
4, 11, 18, 25, 32, 39, 46, 53
7, 22, 35, 50
V
CC
Positive supply voltage
2
1998 Feb 27
853-1782 19026
Philips Semiconductors
Product specification
74ABT16646
74ABTH16646
16-bit bus transceiver/register (3-State)
PIN CONFIGURATION
1
2
56
55
1DIR
1CPAB
1SAB
GND
1OE
1CPBA
3
54 1SBA
GND
1B0
4
53
52
1A0
5
1A1
6
51 1B1
7
50
49
48
47
46
45
44
43
42
41
40
39
38
V
V
CC
CC
8
1A2
1A3
1B2
1B3
9
1A4
1B4
10
11
12
13
14
15
16
17
18
19
GND
1A5
1A6
1A7
2A0
GND
1B5
1B6
1B7
2B0
2A1
2A2
2B1
2B2
GND
2A3
GND
2B3
2A4 20
37 2B4
21
22
23
24
36
35
34
33
2A5
2B5
V
V
CC
CC
2A6
2B6
2B7
2A7
GND 25
32 GND
26
27
28
31
30
29
2SAB
2CPAB
2DIR
2SBA
2CPBA
20E
SH00026
FUNCTION TABLE
INPUTS
nCPAB
DATA I/O
OPERATING MODE
nOE
nDIR
nCPBA nSAB nSBA
nAx
nBx
Unspecified
output*
X
X
↑
X
X
X
X
X
Input
Store A, B unspecified
Unspecified
output*
X
X
X
↑
Input
Input
Store B, A unspecified
H
H
X
X
↑
↑
X
X
X
X
Store A and B data
Isolation, hold storage
Input
Output
Input
H or L
H or L
L
L
L
L
X
X
X
X
X
L
H
Real time B data to A bus
Stored B data to A bus
Input
H or L
L
L
H
H
X
X
X
L
H
X
X
Real time A data to B bus
Stored A data to B bus
Output
H or L
H = High voltage level
L
X
↑
*
=
=
=
Low voltage level
Don’t care
Low-to-High clock transition
The data output function may be enabled or disabled by various signals at the nOE input. Data input functions are always enabled, i.e.,
data at the bus pins will be stored on every Low–to–High transition of the clock.
3
1998 Feb 27
Philips Semiconductors
Product specification
74ABT16646
74ABTH16646
16-bit bus transceiver/register (3-State)
LOGIC SYMBOL (IEEE/IEC)
LOGIC SYMBOL
56
1OE
G3
1
1DIR
5
6
8
9
10 12 13 14
3 EN1 [BA]
3 EN2 [AB]
C4
55
54
2
1CPBA
1SBA
1CPAB
1SAB
2OE
1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7
G5
C6
2
3
1CPAB
1SAB
1DIR
3
1
G7
55
54
56
1CPBA
1SBA
1OE
29
28
G10
10 EN8 [BA]
10 EN9 [AB]
C11
2DIR
1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7
30
31
27
26
2CPBA
2SBA
G12
52 51 49 48 47 45 44 43
15 16 17 19 20 21 23 24
2CPAB
2SAB
C13
G14
52
2A0 2A1 2A2 2A3 2A4 2A5 2A6 2A7
w1
1B0
5
4D
5
1A0
1
6D
27
26
28
30
31
29
2CPAB
5
1
2SAB
w1
7
7
2
2DIR
1
2CPBA
6
8
51
49
48
47
45
44
43
42
1A1
1A2
1A3
1A4
1A5
1A6
1A7
1B1
1B2
1B3
1B4
1B5
1B6
1B7
2B0
2SBA
2OE
9
2B0 2B1 2B2 2B3 2B4 2B5 2B6 2B7
10
12
13
14
42 41 40 38 37 36 34 33
SH00027
w1
12 11D
12
15
2A0
8
1
w1
13D 14
14
9
1
16
17
19
41
40
38
2A1
2A2
2A3
2B1
2B2
2B3
20
21
37
36
2A4
2A5
2B4
2B5
23
24
34
33
2A6
2A7
2B6
2B7
SH00025
4
1998 Feb 27
Philips Semiconductors
Product specification
74ABT16646
74ABTH16646
16-bit bus transceiver/register (3-State)
The following examples demonstrate the four fundamental bus-management functions that can be performed with the 74ABT16646.
REAL TIME BUS TRANSFER
BUS B TO BUS A
REAL TIME BUS TRANSFER
BUS A TO BUS B
STORAGE FROM
A, B, OR A AND B
A
B
A
B
A
B
nOE nDIR nCPAB nCPBA nSAB nSBA
nOE nDIR nCPAB nCPBA nSAB nSBA
nOE nDIR nCPAB nCPBA nSAB nSBA
L
L
X
X
X
L
L
H
X
X
L
X
L
L
H
H
L
X
↑
X
↑
X
↑
X
X
X
X
X
X
↑
TRANSFER STORED DATA
TO A OR B
A
B
nOE nDIR nCPAB nCPBA nSAB nSBA
L
L
L
X
H | L
X
X
H
H
X
H
H | L
SH00028
5
1998 Feb 27
Philips Semiconductors
Product specification
74ABT16646
74ABTH16646
16-bit bus transceiver/register (3-State)
LOGIC DIAGRAM
nOE
nDIR
nCPBA
nSBA
nCPAB
nSAB
1 of 16 Channels
1D
C1
Q
nA0
nB0
1D
C1
Q
nA1
nA2
nA3
nB1
nB2
nB3
nB4
nB5
nB6
nB7
DETAIL A X 7
nA4
nA5
nA6
nA7
SH00029
1, 2
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
DC supply voltage
CONDITIONS
RATING
UNIT
V
V
CC
I
IK
–0.5 to +7.0
–18
DC input diode current
V < 0
I
mA
V
3
V
I
DC input voltage
–1.2 to +7.0
–50
I
DC output diode current
V
O
< 0
mA
V
OK
3
V
OUT
DC output voltage
output in Off or High state
output in Low state
–0.5 to +5.5
128
mA
mA
°C
I
DC output current
OUT
output in High state
–64
T
stg
Storage temperature range
–65 to 150
NOTES:
1. Stresses beyond those listed 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.
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
6
1998 Feb 27
Philips Semiconductors
Product specification
74ABT16646
74ABTH16646
16-bit bus transceiver/register (3-State)
RECOMMENDED OPERATING CONDITIONS
LIMITS
SYMBOL
PARAMETER
UNIT
MIN
4.5
0
MAX
V
CC
DC supply voltage
5.5
V
V
V
I
Input voltage
V
CC
V
High-level input voltage
Low-level Input voltage
High-level output current
Low-level output current
Input transition rise or fall rate
2.0
V
IH
V
0.8
–32
64
V
IL
I
mA
mA
ns/V
°C
OH
I
OL
∆t/∆v
0
10
T
amb
Operating free-air temperature range
–40
+85
DC ELECTRICAL CHARACTERISTICS
LIMITS
T
= –40°C
to +85°C
amb
SYMBOL
PARAMETER
TEST CONDITIONS
T
amb
= +25°C
UNIT
MIN
TYP
–0.9
2.9
MAX
MIN MAX
V
Input clamp voltage
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 4.5V; I = –18mA
–1.2
–1.2
V
V
V
V
V
V
IK
IK
= 4.5V; I = –3mA; V = V or V
2.5
3.0
2.0
2.5
3.0
2.0
OH
I
IL
IH
IH
V
OH
High-level output voltage
= 5.0V; I = –3mA; V = V or V
3.4
OH
I
IL
= 4.5V; I = –32mA; V = V or V
IH
2.4
OH
I
IL
V
OL
Low-level output voltage
= 4.5V; I = 64mA; V = V or V
IH
0.35
0.13
0.55
0.55
0.55
0.55
OL
I
IL
3
V
RST
Power-up output voltage
= 5.5V; I = 1mA; V = GND or V
O I CC
Input leakage
current
Control
pins
I
I
V
CC
= 5.5V; V = GND or 5.5V
±0.01
±1.0
±1.0
µA
I
V
V
V
V
V
= 4.5V; V = 0.8V
35
35
CC
CC
CC
CC
CC
I
Bus Hold current A or B
Ports 74ABTH16646
= 4.5V; V = 2.0V
–75
–75
I
µA
I
HOLD
5
= 5.5V; V = 0 to 5.5V
±800
I
I
Power-off leakage current
Power-up/down 3-State
= 0.0V; V = 4.5V; V = 0.0V or 5.5V
±2.0
±1.0
±100
±50
±100
±50
µA
µA
OFF
O
I
= 2.1V; V = 0.0V or V
;
CC
O
I
PU/PD
4
output current
V = GND or V ; OE/OE = X
I
CC
I
+ I
+ I
3-State output High current
3-State output Low current
V
= 5.5V; V = 5.5V; V = V or V
1.0
10
10
µA
µA
IH
OZH
OZL
CC
CC
O
I
IL
IH
IH
I
V
= 5.5V; V = 0.0V; V = V or V
–1.0
–10
–10
IL
O
I
IL
Output High leakage
current
I
V
V
= 5.5V; V = 5.5V; V = GND or V
CC
5.0
–80
0.55
9
50
–180
2
50
–180
2
µA
mA
mA
mA
mA
CEX
CC
O
I
1
I
O
Output current
= 5.5V; V = 2.5V
–50
–50
CC
O
V
CC
V
CC
= 5.5V; Outputs High, V = GND or
I
I
CCH
I
V
CC
= 5.5V; Outputs Low, V = GND or V
19
2
19
2
Quiescent supply current
Additional supply current
CCL
I
CC
V
CC
= 5.5V; Outputs 3–State;
I
0.55
CCZ
V = GND or V
I
CC
V
CC
= 5.5V; one input at 3.4V,
2
per input pin
∆I
5.0
50
50
µA
µA
CC
CC
other inputs at V or GND
CC
74ABT16646
Additional supply current
V
CC
= 5.5V; one input at 3.4V,
2
per input pin
∆I
200
500
500
other inputs at V or GND
CC
74ABTH16646
NOTES:
1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
2. This is the increase in supply current for each input at 3.4V.
3. For valid test results, data must not be loaded into the flip-flops (or latches) after applying the power.
4. This parameter is valid for any V between 0V and 2.0V, with a transition time of up to 100msec. From V = 21.V to V = 5V ± 10% a
CC
CC
CC
transition time of up to 100µsec is permitted.
5. This is the bus hold overdrive current required to force the input to the opposite logic state.
7
1998 Feb 27
Philips Semiconductors
Product specification
74ABT16646
74ABTH16646
16-bit bus transceiver/register (3-State)
AC CHARACTERISTICS
GND = 0V, t = t = 2.5ns, C = 50pF, R = 500Ω
R
F
L
L
LIMITS
MAX
T
= -40 to
+85 C
= +5.0V ±0.5V
amb
o
T
V
= +25 C
amb
CC
o
SYMBOL
PARAMETER
WAVEFORM
UNIT
= +5.0V
V
CC
MIN
TYP
MIN
MAX
f
Maximum clock frequency
1
1
125
125
MHz
ns
MAX
t
t
Propagation delay
nCPAB to nBx or nCPBA to nAx
1.5
1.5
3.3
2.7
4.0
4.1
1.5
1.5
4.9
4.7
PLH
PHL
t
t
Propagation delay
nAx to nBx or nBx to nAx
1.0
1.0
2.3
2.0
3.2
4.1
1.0
1.0
3.9
4.6
PLH
PHL
2
ns
ns
ns
ns
ns
ns
t
t
Propagation delay
nSAB to nBx or nSBA to nAx
1.0
1.0
3.1
2.7
4.3
4.3
1.0
1.0
5.0
5.0
PLH
PHL
2, 3
5, 6
5, 6
5, 6
5, 6
t
Output enable time
nOE to nAx or nBx
1.0
1.5
3.2
3.3
4.6
4.9
1.0
1.5
5.5
5.7
PZH
t
PZL
t
Output disable time
nOE to nAx or nBx
1.5
1.5
3.5
2.7
4.9
4.1
1.5
1.5
5.4
4.5
PHZ
t
PLZ
t
Output enable time
nDIR to nAx or nBx
1.0
1.5
4.1
4.3
4.8
4.8
1.0
1.5
5.4
5.6
PZH
t
PZL
t
Output disable time
nDIR to nAx or nBx
2.0
1.5
3.6
2.7
5.7
5.1
2.0
1.5
6.7
5.9
PHZ
t
PLZ
AC SETUP REQUIREMENTS
GND = 0V, t = t = 2.5ns, C = 50pF, R = 500Ω
R
F
L
L
LIMITS
o
o
T
V
= +25 C
= +5.0V
T
V
= -40 to +85 C
amb
CC
amb
CC
SYMBOL
PARAMETER
WAVEFORM
UNIT
= +5.0V ±0.5V
MIN
TYP
MIN
t (H)
t (L)
s
Setup time
nAx to nCPAB, nBx to nCPBA
2.0
1.5
1.0
0.8
2.0
1.5
s
4
4
1
ns
ns
ns
t (H)
Hold time
nAx to nCPAB, nBx to nCPBA
1.5
1.0
0.0
–0.7
1.5
1.0
h
t (L)
h
t (H)
Pulse width, High or Low
nCPAB or nCPBA
4.5
3.0
2.5
2.0
4.5
3.0
w
t (L)
w
AC WAVEFORMS
V
M
= 1.5V, V = GND to 3.0V
IN
1/f
MAX
3.0V or V
CC
3.0V or V
whichever
is less
CC
nCPBA or
nCPAB
nSBA or nSAB
nAx or nBx
V
V
V
V
M
V
M
M
M
M
0V
0V
t
w
(H)
t (L)
w
t
t
PLH
PHL
V
OH
t
t
PLH
PHL
V
V
OH
nAx or nBx
nAx or nBx
V
V
M
M
nAx or nBx
V
V
M
M
V
OL
OL
SH00030
SH00031
Waveform 1. Propagation Delay, Clock Input to Output, Clock
Pulse Width, and Maximum Clock Frequency
Waveform 2. Propagation Delay, nSAB to nBx or nSBA to nAx,
nAx to nBx or nBx to nAx
8
1998 Feb 27
Philips Semiconductors
Product specification
74ABT16646
74ABTH16646
16-bit bus transceiver/register (3-State)
AC WAVEFORMS (Continued)
V
M
= 1.5V, V = GND to 3.0V
IN
3.0V or V
CC
whichever
is less
nOE, nDIR
nDIR
3.0V or V
0V
CC
V
V
M
M
nSBA or
nSAB
V
V
M
M
0V
t
t
PHZ
PZH
t
t
PHL
PLH
V
OH
V
V
OH
OL
V
nAx or nBx
Y
V
V
nAx or nBx
V
M
M
M
0V
SH00032
SH00034
Waveform 3. Propagation Delay, nSBA to nAx or nSAB to nBx
Waveform 5. 3–State Output Enable Time to High Level and
Output Disable Time from High Level
3.0V
or
V
CC
nAx or
nBx
V
V
V
V
M
M
M
M
3.0V or V
CC
nOE, nDIR
nDIR
0V
V
V
M
M
t (H)
t (L)
s
t
(H)
t (L)
h
s
h
0V
3.0V
or
t
t
PLZ
PZL
nCPBA or
nCPAB
V
CC
V
M
3.0V or V
V
CC
M
0V
V
M
V
V
nAx or nBx
X
NOTE: The shaded areas indicate when the input is permitted
to change for predictable output performance.
OL
0V
SH00033
SH00035
Waveform 4. Data Setup and Hold Times
Waveform 6. 3–State Output Enable Time to Low Level and
Output Disable Time from Low Level
TEST CIRCUIT AND WAVEFORMS
t
W
V
AMP (V)
CC
90%
90%
7.0V
NEGATIVE
PULSE
V
V
M
M
10%
10%
90%
R
R
L
0V
(t
V
V
OUT
IN
PULSE
GENERATOR
D.U.T.
t
t
(t
(t
)
t
TLH
)
THL
F
R
)
t
(t )
R
C
TLH
R
THL F
T
L
L
AMP (V)
90%
M
POSITIVE
PULSE
V
V
M
Test Circuit for 3-State Outputs
10%
10%
t
W
0V
SWITCH POSITION
V
= 1.5V
M
TEST
SWITCH
Input Pulse Definition
t
closed
PLZ
PZL
t
closed
open
All other
INPUT PULSE REQUIREMENTS
DEFINITIONS
R = Load resistor; see AC CHARACTERISTICS for value.
L
FAMILY
Amplitude
3.0V
Rep. Rate
1MHz
t
t
t
F
W
R
C = Load capacitance includes jig and probe capacitance;
L
see AC CHARACTERISTICS for value.
74ABT/H16
500ns 2.5ns 2.5ns
R = Termination resistance should be equal to Z
T
of
OUT
pulse generators.
SA00018
9
1998 Feb 27
Philips Semiconductors
Product specification
74ABT16646
74ABTH16646
16-bit bus transceiver/register (3-State)
SSOP56: plastic shrink small outline package; 56 leads; body width 7.5 mm
SOT371-1
10
1998 Feb 27
Philips Semiconductors
Product specification
74ABT16646
74ABTH16646
16-bit bus transceiver/register (3-State)
TSSOP56: plastic thin shrink small outline package; 56 leads; body width 6.1mm
SOT364-1
11
1998 Feb 27
Philips Semiconductors
Product specification
74ABT16646
74ABTH16646
16-bit bus transceiver/register (3-State)
Data sheet status
[1]
Data sheet
status
Product
status
Definition
Objective
specification
Development
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
Preliminary
specification
Qualification
This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make chages at any time without notice in order to
improve design and supply the best possible product.
Product
specification
Production
This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Righttomakechanges—PhilipsSemiconductorsreservestherighttomakechanges, withoutnotice, intheproducts, includingcircuits,standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
Sunnyvale, California 94088–3409
Telephone 800-234-7381
print code
Date of release: 05-96
9397-750-03498
Document order number:
Philips
Semiconductors
相关型号：
74ABT16646DGGRG4
ABT SERIES, DUAL 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO56, GREEN, PLASTIC, TSSOP-56
TI
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