INTEGRATED CIRCUITS
74ABT244
Octal buffer/line driver (3-State)
Product specification
1998 Jan 16
Supersedes data of 1995 Sep 06
IC23 Data Handbook
Philips Semiconductors Product specification
Octal buffer/line driver (3-State) 74ABT244
FEATURES DESCRIPTION
Octal bus interface
The 74ABT244 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
3-State buffers
output drive.
Output capability: +64mA/32mA
The 74ABT244 device is an octal buffer that is ideal for driving bus
Latch-up protection exceeds 500mA per Jedec Std 17 lines. The device features two Output Enables (1OE, 2OE), each
controlling four of the 3-State outputs.
ESD protection exceeds 2000 V per MIL STD 883 Method 3015
and 200 V per Machine Model
Power-up 3-State
Live insertion capacity
Inputs are disabled during 3-State mode
QUICK REFERENCE DATA
CONDITIONS
SYMBOL PARAMETER TYPICAL UNIT
T = 25C; GND = 0V
amb
t Propagation delay
PLH
C = 50pF; V = 5V 2.9 ns
L CC
t An to Yn
PHL
C Input capacitance V = 0V or V 4 pF
IN I CC
C Output capacitance Outputs disabled; V = 0V or V 7 pF
OUT O CC
I Total supply current Outputs disabled; V =5.5V 50 A
CCZ CC
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
20-Pin Plastic DIP 40C to +85C 74ABT244 N 74ABT244 N SOT146-1
20-Pin plastic SO 40C to +85C 74ABT244 D 74ABT244 D SOT163-1
20-Pin Plastic SSOP Type II 40C to +85C 74ABT244 DB 74ABT244 DB SOT339-1
20-Pin Plastic TSSOP Type I 40C to +85C 74ABT244 PW 74ABT244PW DH SOT360-1
PIN CONFIGURATION PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
2, 4, 6, 8 1A0 1A3 Data inputs
20
1OE 1 V
CC
11, 13, 15, 17 2A0 2A3 Data inputs
1A0 2 19 2OE
18, 16, 14, 12 1Y0 1Y3 Data outputs
2Y0 3 18 1Y0
9, 7, 5, 3 2Y0 2Y3 Data outputs
1A1 4 17 2A0
2Y1 5 16 1Y1
1, 19 1OE, 2OE Output enables
1A2 6 15 2A1
10 GND Ground (0V)
2Y2 7 14 1Y2
20 V Positive supply voltage
CC
1A3 8 13 2A2
2Y3 9 12 1Y3
GND 10 11
2A3
SA00148
2
1998 Jan 16 8531444 18867