Philips 74ABT640PW, 74ABT640N, 74ABT640DB, 74ABT640D Datasheet
INTEGRATED CIRCUITS
74ABT640
Octal transceiver with direction pin,
inverting (3-State)
Product specification
Supersedes data of 1993 Jun 21
IC23 Data Handbook
1998 Jan 16
Philips Semiconductors Product specification
Octal transceiver with direction pin, inverting
(3-State)
FEA TURES
•Octal bidirectional bus interface
•3-State buffers
•Power-up 3-State
•Live insertion/extraction permitted
•Output capability: +64mA/–32mA
•Latch-up protection exceeds 500mA per Jedec Std 17
•ESD protection exceeds 2000 V per MIL STD 883 Method 3015
and 200 V per Machine Model
QUICK REFERENCE DATA
SYMBOL PARAMETER
t
PLH
t
PHL
C
C
I
CCZ
IN
I/O
Propagation delay
An to Bn or Bn to An
Input capacitance
DIR, OE
CL = 50pF; VCC = 5V 3.1 ns
VI = 0V or V
I/O capacitance Outputs disabled; VO = 0V or V
Total supply current Outputs disabled; VCC =5.5V 50 µA
DESCRIPTION
The 74ABT640 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
The 74ABT640 device is an octal transceiver featuring inverting
3-State bus compatible outputs in both send and receive directions.
The control function implementation minimizes external timing
requirements. The device features an Output Enable (OE
easy cascading and a Direction (DIR) input for direction control.
CONDITIONS
T
= 25°C; GND = 0V
amb
CC
CC
74ABT640
) input for
TYPICAL UNIT
4 pF
7 pF
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
20-Pin Plastic DIP –40°C to +85°C 74ABT640 N 74ABT640 N SOT146-1
20-Pin plastic SO –40°C to +85°C 74ABT640 D 74ABT640 D SOT163-1
20-Pin Plastic SSOP Type II –40°C to +85°C 74ABT640 DB 74ABT640 DB SOT339-1
20-Pin Plastic TSSOP Type I –40°C to +85°C 74ABT640 PW 74ABT640PW DH SOT360-1
PIN CONFIGURATION
1
DIR
2
A0
3
A1
4
A2
5
A3
6
A4
7
A5
8
A6
9
A7
10 11
GND
20
V
CC
19
OE
18
B0
17
B1
16
B2
15
B3
14
B4
13
B5
12
B6
B7
PIN DESCRIPTION
PIN
NUMBER
1 DIR Direction control input
2, 3, 4, 5,
6, 7, 8, 9
18, 17, 16,
15,
14, 13, 12, 11
19 OE
10 GND Ground (0V)
20 V
SYMBOL NAME AND FUNCTION
A0 – A7 Data inputs/outputs (A side)
B0 – B7 Data inputs/outputs (B side)
Output enable input, B side to A
side (active-Low)
CC
Positive supply voltage
SA00208
1998 Jan 16 853–1612 18864
2
Philips Semiconductors Product specification
Octal transceiver with direction pin, inverting
(3-State)
LOGIC SYMBOL
1
DIR
A0
A1
A2
A3
A4
A5
A6
A7
2
3
4
5
6
7
8
9
19
OE
18
B0
17
B1
16
B2
15
B3
14
B4
13
B5
12
B6
11
B7
SA00209
LOGIC SYMBOL (IEEE/IEC)
19
1
2
3
4
5
6
7
8
9
G3
3 EN1 (BA)
3 EN2 (AB)
1
74ABT640
18
2
17
16
15
14
13
12
11
SA00210
FUNCTION TABLE
INPUTS INPUTS/OUTPUTS
OE DIR An Bn
L L Bn Inputs
L H Inputs An
H X Z Z
H =High voltage level
L =Low voltage level
X = Don’t care
Z =High impedance ”off” state
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V
I
V
I
V
I
OK
OUT
OUT
T
CC
IK
stg
DC supply voltage –0.5 to +7.0 V
DC input diode current VI < 0 –18 mA
DC input voltage
I
DC output diode current VO < 0 –50 mA
DC output voltage
DC output current output in Low state 128 mA
Storage temperature range –65 to 150 °C
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.
PARAMETER CONDITIONS RATING UNIT
3
3
1, 2
–1.2 to +7.0 V
output in Off or High state –0.5 to +5.5 V
1998 Jan 16
3
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