74HC_HCT299_3 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 03 — 28 July 2008 11 of 24
NXP Semiconductors
74HC299; 74HCT299
8-bit universal shift register; 3-state
t
W
pulse width CP HIGH or LOW; see Figure 7
V
CC
= 2.0 V 80 17 - 100 - 120 - ns
V
CC
= 4.5 V 16 6 - 20 - 24 - ns
V
CC
= 6.0 V 14 5 - 17 - 20 - ns
MR LOW; see Figure 8
V
CC
= 2.0 V 80 19 - 100 - 120 - ns
V
CC
= 4.5 V 16 7 - 20 - 24 - ns
V
CC
= 6.0 V 14 6 - 17 - 20 - ns
t
PZH
OFF-state to
HIGH
propagation
delay
OEn to I/On; see Figure 10
[4]
V
CC
= 2.0 V - 50 155 - 195 - 235 ns
V
CC
= 4.5 V - 18 31 - 39 - 47 ns
V
CC
= 6.0 V - 14 26 - 33 - 40 ns
t
PZL
OFF-state to
LOW
propagation
delay
OEn to I/On; see Figure 10
V
CC
= 2.0 V - 41 130 - 165 - 195 ns
V
CC
= 4.5 V - 15 26 - 33 - 39 ns
V
CC
= 6.0 V - 12 22 - 28 - 33 ns
t
PHZ
HIGH to
OFF-state
propagation
delay
OEn to I/On; see Figure 10
[5]
V
CC
= 2.0 V - 66 185 - 230 - 280 ns
V
CC
= 4.5 V - 24 37 - 46 - 56 ns
V
CC
= 6.0 V - 19 31 - 39 - 48 ns
t
PLZ
LOW to
OFF-state
propagation
delay
OEn to I/On; see Figure 10
V
CC
= 2.0 V - 55 155 - 195 - 235 ns
V
CC
= 4.5 V - 20 31 - 39 - 47 ns
V
CC
= 6.0 V - 16 26 - 33 - 40 ns
t
rec
recovery time MR to CP; see Figure 8
V
CC
= 2.0 V 5 −14-5-5-ns
V
CC
= 4.5 V 5 −5-5-5-ns
V
CC
= 6.0 V 5 −4-5-5-ns
Table 7. Dynamic characteristics
…continued
GND (ground = 0 V); for test circuit, see Figure 11.
Symbol Parameter Conditions 25 °C −40 °C to
+85 °C
−40 °C to
+125 °C
Unit
Min Typ Max Min Max Min Max
