74AC299 Datasheet, PDF (1/13 Pages) Fairchild Semiconductor – 8-Input Universal Shift/Storage Register

74AC299
8 BIT PIPO SHIFT REGISTER
WITH ASYNCHRONOUS CLEAR
s HIGH SPEED:
s f_MAX = 240MHz (TYP.) at V_CC = 5V
s LOW POWER DISSIPATION:
I_CC = 8µA(MAX.) at T_A=25°C
s HIGH NOISE IMMUNITY:
V_NIH = V_NIL = 28 % V_CC (MIN.)
s 50Ω TRANSMISSION LINE DRIVING
CAPABILITY
s SYMMETRICAL OUTPUT IMPEDANCE:
|I_OH| = I_OL = 24mA (MIN)
s BALANCED PROPAGATION DELAYS:
t_PLH ≅ t_PHL
s OPERATING VOLTAGE RANGE:
V_CC (OPR) = 2V to 6V
s PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 299
s IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74AC299 is an advanced high-speed CMOS
8-BIT PIPO SHIFT REGISTER (3-STATE)
fabricated with sub-micron silicon gate and
double-layer metal wiring C²MOS technology.
These devices have four modes (HOLD, SHIFT
LEFT, SHIFT RIGHT and LOAD DATA). Each
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.
PIN CONNECTION AND IEC LOGIC SYMBOLS
April 2001
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