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| 74HC1G66 Datasheet, PDF (13/20 Pages) NXP Semiconductors – Bilateral switch | |||
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Philips Semiconductors
Bilateral switch
AC WAVEFORMS
handbook, halfpageVI
Vis
GND
VOH(2)
Vos
VOL(2)
VM(1)
tPLH
VM(1)
tPHL
MNA087
(1) For HC1G VM = 50%
For HCT1G VM = 1.3 V.
(2) VOL and VOH are the typical output voltage drop that occur with
the output load.
Fig.14 The input (Vis) to output (Vos) propagation
delays.
Product speciï¬cation
74HC1G66; 74HCT1G66
VI
E INPUT
GND
OUTPUT
LOW-to-OFF
OFF-to-LOW
VCC
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
GND
VM(1)
tPLZ
tPZL
tPHZ
VX(2)
VY(3)
VM(1)
tPZH
VM(1)
outputs
enabled
outputs
disabled
outputs
enabled
MNA088
(1) For HC1G VM = 50%; VI = GND to VCC
For HCT1G VM = 1.3 V; VI = GND to 3.0 V.
(2) VX = 10% of signal amplitude.
(3) VY = 90% of signal amplitude.
Fig.15 The turn-on and turn-off times.
handbook, halfpage
VI
PULSE
GENERATOR
VCC
VO RL = 1 kâ¦
D.U.T.
RT
CL
S1
50 pF
MNA090
VCC
open
Definitions for test circuit:
CL = load capacitance including jig and probe capacitance
(see âAC characteristicsâ for values)
RT = termination resistance should be equal to the output
impedance Zo of the pulse generator.
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
open
VCC
GND
Fig.16 Test circuit for measuring AC performance.
tW
NEGATIVE
INPUT PULSE
90%
10%
VM(1)
tTHL (tf)
tTLH (tr)
POSITIVE
INPUT PULSE
90%
10%
VM(1)
tW
AMPLITUDE
0V
tTLH (tr)
tTHL (tf)
AMPLITUDE
0V
MNA089
tr = tf = 6 ns, when measuring fmax, there is no constraint on tr, tf with
50% duty factor.
(1) For HC1G66: VM = 50%; VI = GND to VCC
For HCT1G66: VM = 1.3 V; VI = GND to 3.0 V.
Fig.17 Input pulse definitions.
2002 May 15
13
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