Philips Semiconductors
Product specification
Quad bilateral switches
74HC/HCT4016
TEST CIRCUIT AND WAVEFORMS
Conditions
TEST
tPZH
SWITCH
GND
Vis
VCC
tPZL
tPHZ
tPLZ
others
VCC
GND
VCC
GND
VCC
GND
pulse
open
CL = load capacitance including jig and probe capacitance
(see AC CHARACTERISTICS for values).
RT = termination resistance should be equal to the output
impedance ZO of the pulse generator.
tr = tf = 6 ns; when measuring fmax, there is no constraint
tr, tf with 50% duty factor.
tr; tf
FAMILY
AMPLITUDE
VM
fmax
;
OTHER
PULSE WIDTH
74HC
74HCT
VCC
3.0 V
50%
1.3 V
< 2 ns
< 2 ns
6 ns
6 ns
Fig.18 Test circuit for measuring AC performance.
CL = load capacitance including jig and probe capacitance
(see AC CHARACTERISTICS for values).
RT = termination resistance should be equal to the output
impedance ZO of the pulse generator.
tr = tf = 6 ns; when measuring fmax, there is no constraint
tr, tf with 50% duty factor.
tr; tf
FAMILY
AMPLITUDE
VM
fmax
;
OTHER
PULSE WIDTH
74HC
74HCT
VCC
3.0 V
50%
1.3 V
< 2 ns
< 2 ns
6 ns
6 ns
Fig.19 Input pulse definitions.
PACKAGE OUTLINES
See “74HC/HCT/HCU/HCMOS Logic Package Outlines”.
December 1990
14