54F 74F657 Octal Bidirectional Transceiver
with 8-Bit Parity Generator Checker and TRI-STATE Outputs
December 1994
54F 74F657 Octal Bidirectional Transceiver
with 8-Bit Parity Generator Checker
and TRI-STATE Outputs
General Description
The 鈥橣657 contains eight non-inverting buffers with
TRI-STATE outputs and an 8-bit parity generator checker
It is intended for bus-oriented applications The buffers have
a guaranteed current sinking capability of 24 mA (20 mA mil)
at the A port and 64 mA (48 mA mil) at the B port
Features
Y
Y
Y
Y
Y
Y
300 Mil 24-pin slimline DIP
Combines 鈥橣245 and 鈥橣280A functions in one package
TRI-STATE outputs
B Outputs sink 64 mA (48 mA mil)
12 mA source current B side
Input diodes for termination effects
Commercial
74F657SPC
Military
Package
Number
N24C
Package Description
24-Lead (0 300 Wide) Molded Dual-In-Line
24-Lead (0 300 Wide) Ceramic Dual-In-Line
24-Lead (0 300 Wide) Molded Small Outline JEDEC
24-Lead Cerpack
24-Lead Ceramic Leadless Chip Carrier Type C
54F657SDM (Note 2)
75F657SC (Note 1)
54F657FM (Note 2)
54F657LM (Note 2)
Note 1
Devices also available in 13 reel Use suffix
e
SCX
J24F
M24B
W24C
E28A
Note 2
Military grade device with environmental and burn-in processing Use suffix
e
DMQB FMQB and LMQB
Logic Symbols
IEEE IEC
TL F 9584 鈥?1
TL F 9584 鈥?5
TRI-STATE is a registered trademark of National Semiconductor Corporation
C
1995 National Semiconductor Corporation
TL F 9584
RRD-B30M75 Printed in U S A