74lv161db NXP Semiconductors, 74lv161db Datasheet - Page 10

• Manufacturer Part Number: 74lv161db
• Description: Presettable Synchronous 4-bit Binary Counter; Asynchronous Reset
• Manufacturer: NXP Semiconductors

Philips Semiconductors
TEST CIRCUIT
1997 May 15
Presettable synchronous 4-bit binary counter;
asynchronous reset
The shaded areas indicate when the input is permitted to change
for predictable output performance.
SWITCH POSITION
CP INPUT
CEP, CET
t
t
PLZ/
PHZ/
t
TEST
PLH/
Figure 5. CEP and CET set-up and hold times.
INPUT
GND
GND
t
t
PZL
PZH
t
PHL
V
V
I
I
2 x V
Open
GND
S
1
CC
V
t
su
M
2.7–3.6V
t
V
< 2.7V
h
M
V
CC
GENERATOR
PULSE
2.7V
V
V
CC
Figure 6. Load circuitry for switching times.
I
t
su
Test Circuit for switching times
V
t
h
I
R
SV00580
T
D.U.T.
V
CC
10
R
C
See AC CHARACTERISTICS for value.
R
pulse generators.
V
L
L
T
O
= Load resistor; see AC CHARACTERISTICS for value.
= Load capacitance includes jig and probe capacitance:
= Termination resistance should be equal to Z
C
L
S
1
R
R
DEFINITIONS
L
L
GND
2 x V
Open
CC
Product specification
74LV161
OUT
of
SV00776