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| 74HC2G126 Datasheet, PDF (11/20 Pages) NXP Semiconductors – Dual buffer/line driver; 3-state | |||
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Philips Semiconductors
Dual buffer/line driver; 3-state
Product speciï¬cation
74HC2G126; 74HCT2G126
handbook, full pagewidth
VI
nOE input
GND
VCC
output
LOW - to - OFF
OFF- to - LOW
VOL
output
VOH
HIGH - to - OFF
OFF- to - HIGH
GND
VM
t PLZ
t PZL
t PHZ
VX
VY
outputs
enabled
VM
t PZH
outputs
disabled
VM
outputs
enabled
MNA949
For 74HC2G126: VM = 50%; VI = GND to VCC
For 74HCT2G126: VM = 1.3 V; VI = GND to 3.0 V.
Fig.6 The 3-state enable and disable times.
handbook, full pagewidth
VI
PULSE
GENERATOR
VCC
VO
D.U.T.
RT
S1
RL =
1000 â¦
VCC
open
GND
CL
MNA232
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
open
VCC
GND
2003 Mar 03
Definitions for test circuit:
CL = Load capacitance including jig and probe capacitance (see âAC characteristicsâ for values).
RL = Load resistance (see âAC characteristicsâ for values).
RT = Termination resistance should be equal to the output impedance Zo of the pulse generator.
Fig.7 Load circuitry for switching times.
11
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