54F 74F299 Octal Universal Shift Storage Register with Common Parallel I O Pins
May 1995
54F 74F299 Octal Universal Shift Storage Register
with Common Parallel I O Pins
General Description
The 鈥橣299 is an 8-bit universal shift storage register with
TRI-STATE outputs Four modes of operation are possi-
ble hold (store) shift left shift right and load data The par-
allel load inputs and flip-flop outputs are multiplexed to re-
duce the total number of package pins Additional outputs
Q
0
鈥換
7
are provided to allow easy serial cascading A sep-
arate active LOW Master Reset is used to reset the register
Features
Y
Y
Y
Y
Y
Common parallel I O for reduced pin count
Additional serial inputs and outputs for expansion
Four operating modes shift left shift right load and
store
TRI-STATE outputs for bus-oriented applications
Guaranteed 4000V minimum ESD protection
Commercial
74F299PC
Military
Package
Number
N20A
Package Description
20-Lead (0 300 Wide) Molded Dual-In-Line
20-Lead Ceramic Dual-In-Line
20-Lead (0 300 Wide) Molded Small Outline JEDEC
20-Lead (0 300 Wide) Molded Small Outline EIAJ
20-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
54F299DM (Note 2)
74F299SC (Note 1)
74F299SJ (Note 1)
54F299FM (Note 2)
54F299LM (Note 2)
J20A
M20B
M20D
W20A
E20A
Note 1
Devices also available in 13 reel Use suffix
e
SCX and SJX
Note 2
Military grade device with environmental and burn-in processing Use suffix
e
DMQB FMQB and LMQB
Logic Symbols
IEEE IEC
TL F 9515 鈥?1
TL F 9515 鈥?4
TRI-STATE is a registered trademark of National Semiconductor Corporation
C
1995 National Semiconductor Corporation
TL F 9515
RRD-B30M75 Printed in U S A