m54hc245k1 STMicroelectronics, m54hc245k1 Datasheet - Page 6

• Manufacturer Part Number: m54hc245k1
• Description: Octal Bus Transceiver 3-state Hc245 Non Inverting Hc640 Inverting, Hc643 Inverting/non Inverting
• Manufacturer: STMicroelectronics

M54HC245
TEST CIRCUIT
C
R
R
WAVEFORM 1: PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle)
6/10
t
t
t
PLH
PZL
PZH
L
1
T
= 50pF/150pF or equivalent (includes jig and probe capacitance)
= 1K or equivalent
= Z
, t
, t
, t
OUT
PLZ
PHL
PHZ
of pulse generator (typically 50 )
TEST
SWITCH
Open
GND
V
CC