74HC373 Datasheet, PDF (6/8 Pages) NXP Semiconductors – Octal D-type transparent latch; 3-state

Philips Semiconductors
Octal D-type transparent latch; 3-state
Product specification
74HC/HCT373
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see “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
D_n
LE
OE
UNIT LOAD COEFFICIENT
0.30
1.50
1.00
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
D_n to Q_n
17 30
38
45 ns 4.5 Fig.7
t_PHL/ t_PLH propagation delay
LE to Q_n
16 32
40
48 ns 4.5 Fig.8
t_PZH/ t_PZL 3-state output enable time
19 32
40
48 ns 4.5 Fig.9
OE to Q_n
t_PHZ/ t_PLZ 3-state output disable time
18 30
38
45 ns 4.5 Fig.9
OE to Q_n
t_THL/ t_TLH output transition time
5 12
15
18 ns 4.5 Fig.7
t_W
LE pulse width
HIGH
t_su
set-up time
D_n to LE
t_h
hold time
D_n to LE
16 4
20
24
12 6
15
18
4 −1
4
4
ns 4.5 Fig.8
ns 4.5 Fig.10
ns 4.5 Fig.10
September 1993
6