74HC299 Datasheet, PDF (10/11 Pages) NXP Semiconductors – 8-bit universal shift register; 3-state

Philips Semiconductors
8-bit universal shift register; 3-state
Product specification
74HC/HCT299
AC WAVEFORMS
handbook, full pagewidth
I/On ,DSR,DSL
INPUTS
VM ⁽¹⁾
t _su
th
1/ f _max
t _su
th
CP INPUT
VM ⁽¹⁾
The shaded areas indicate when the input is
permitted to change for predictable output
performance.
(1) HC : V_M = 50%; V_I = GND to V_CC.
HCT : V_M = 1.3 V; V_I = GND to 3 V.
I/On,Q ₀ ,Q ₇
OUTPUTS
MBA335
tW
t _PHL
VM ⁽¹⁾
t _THL
t _PLH
t _TLH
Fig.6 Waveforms showing the clock (CP) to output (I/O_n, Q₀, Q₇) propagation delays, the clock pulse width, the
I/O_n, D_SR and D_SL to CP set-up and hold times, the output transition times and the maximum clock
frequency.
(1) HC : V_M = 50%; V_I = GND to V_CC.
HCT : V_M = 1.3 V; V_I = GND to 3 V.
Fig.7 Waveforms showing the master reset (MR) pulse width (LOW), the master reset to output (I/O_n, Q₀, Q₇)
propagation delays and the master reset to clock (CP) removal time.
December 1990
10