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STMicroelectronics - 8 BIT PIPO SHIFT REGISTER

Numéro de référence 74AC299
Description 8 BIT PIPO SHIFT REGISTER
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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74AC299 fiche technique
74AC299
8 BIT PIPO SHIFT REGISTER
WITH ASYNCHRONOUS CLEAR
s HIGH SPEED:
s fMAX = 240MHz (TYP.) at VCC = 5V
s LOW POWER DISSIPATION:
ICC = 8µA(MAX.) at TA=25°C
s HIGH NOISE IMMUNITY:
)VNIH = VNIL = 28 % VCC (MIN.)
t(ss 50TRANSMISSION LINE DRIVING
CAPABILITY
ucs SYMMETRICAL OUTPUT IMPEDANCE:
d|IOH| = IOL = 24mA (MIN)
ro )s BALANCED PROPAGATION DELAYS:
P t(stPLH tPHL
s OPERATING VOLTAGE RANGE:
lete ucVCC (OPR) = 2V to 6V
ds PIN AND FUNCTION COMPATIBLE WITH
so ro74 SERIES 299
b Ps IMPROVED LATCH-UP IMMUNITY
- O teDESCRIPTION
) leThe 74AC299 is an advanced high-speed CMOS
t(s o8-BIT PIPO SHIFT REGISTER (3-STATE)
sfabricated with sub-micron silicon gate and
c bdouble-layer metal wiring C2MOS technology.
du OThese devices have four modes (HOLD, SHIFT
ro -LEFT, SHIFT RIGHT and LOAD DATA). Each
P t(s)mode is chosen by two function select inputs (S0,
DIP
SOP
TSSOP
ORDER CODES
PACKAGE
DIP
SOP
TSSOP
TUBE
74AC299B
74AC299M
T&R
74AC299MTR
74AC299TTR
S1) as shown in the Truth Table. When one or
both enable inputs, (G1, G2) are high, the eight
input/output terminals are in the high-impedance
state; however sequential operation or clearing of
the register is not affected. Clear function is
asynchronous to clock.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
OObbssoolleettee ProducPIN CONNECTION AND IEC LOGIC SYMBOLS
April 2001
1/13

PagesPages 13
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