74HC534 Datasheet, PDF (7/13 Pages) NXP Semiconductors – Octal D-type flip-flop; positive edge-trigger; 3-state; inverting

Philips Semiconductors
Octal D-type flip-flop; positive edge-trigger;
3-state; inverting
Product specification
74HC/HCT534
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see chapter “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver I_CC category: MSI.
Note to HCT types
The value of additional quiescent supply current (∆I_CC) for a unit load of 1 is given in the family specifications.
To determine ∆I_CC per input, multiply this value by the unit load coefficient shown in the table below.
INPUT
OE
CP
D_n
UNIT LOAD COEFFICIENT
1.25
0.90
0.35
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t_r = t_f = 6 ns; C_L = 50 pF
T_amb (°C)
TEST CONDITIONS
SYMBOL PARAMETER
74HCT
+25
−40 to +85
−40 to +125
UNIT
V_CC
(V)
WAVEFORMS
min. typ. max min. max. min. max.
t_PHL/ t_PLH propagation delay
CP to Q_n
16 30
38
t_PZH/ t_PZL 3-state output enable time
16 30
38
OE to Q_n
t_PHZ/ t_PLZ 3-state output disable
time OE to Q_n
18 30
38
t_THL/ t_TLH output transition time
5 12
15
45 ns 4.5 Fig.6
45 ns 4.5 Fig.7
45 ns 4.5 Fig.7
18 ns 4.5 Fig.6
t_W
clock pulse width
23 14
29
35
HIGH or LOW
t_su
set-up time
D_n to CP
12 4
15
18
t_h
hold time
D_n to CP
5 −1
5
5
f_max
maximum clock pulse
22 36
18
15
frequency
ns 4.5 Fig.6
ns 4.5 Fig.8
ns 4.5 Fig.8
MHz 4.5 Fig.6
1998 Apr 10
7