74HC_HCT299_3 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 03 — 28 July 2008 13 of 24
NXP Semiconductors
74HC299; 74HCT299
8-bit universal shift register; 3-state
[1] t
pd
is the same as t
PHL
and t
PLH
.
[2] t
pd
is the same as t
PHL
.
[3] t
t
is the same as t
THL
and t
TLH
.
[4] t
en
is the same as t
PZH
and t
PZL
.
[5] t
dis
is the same as t
PHZ
and t
PLZ
.
t
t
transition time bus driver (I/On); see Figure 7
[3]
V
CC
= 4.5 V - 5 12 - 15 - 18 ns
standard (Q0, Q7); see
Figure 7
V
CC
= 4.5 V - 7 15 - 19 - 22 ns
t
W
pulse width clock HIGH or LOW; see Figure 7
V
CC
= 4.5 V 20 10 - 25 - 30 - ns
master reset LOW; see
Figure 8
V
CC
= 4.5 V 20 11 - 25 - 30 - ns
t
en
enable time OEn to I/On; see Figure 10
[4]
V
CC
= 4.5 V - 19 30 - 38 - 45 ns
t
PHZ
HIGH to
OFF-state
propagation
delay
OEn to I/On; see Figure 10
[5]
V
CC
= 4.5 V - 24 37 - 46 - 56 ns
t
PLZ
LOW to
OFF-state
propagation
delay
OEn to I/On; see Figure 10
V
CC
= 4.5 V - 20 32 - 40 - 48 ns
t
rec
recovery time MR to CP; see Figure 8
V
CC
= 4.5 V 10 2 - 9 - 11 - ns
t
su
set-up time I/On, DSR, DSL to CP;
see
Figure 7
V
CC
= 4.5 V 25 14 - 31 - 38 - ns
S0, S1 to CP; see
Figure 9
V
CC
= 4.5 V 32 18 - 40 - 48 - ns
t
h
hold time I/On, DSR, DSL to CP;
see
Figure 7
V
CC
= 4.5 V 0 −11-0-0-ns
S0, S1 to CP; see
Figure 9
V
CC
= 4.5 V 0 −17-0-0-ns
f
max
maximum
frequency
CP input; see Figure 7
V
CC
= 4.5 V 25 42 - 20 - 17 - MHz
V
CC
= 5.0 V; C
L
= 15 pF -46-----MHz
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
