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| 74HC_HCT245_15 Datasheet, PDF (14/22 Pages) NXP Semiconductors – Octal bus tranceiver; 3-state | |||
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Philips Semiconductors
74HC245; 74HCT245
Octal bus tranceiver; 3-state
VI
PULSE
GENERATOR
VCC
D.U.T
RT
VCC
VO
RL = 1 kâ¦
CL 50 pF
open
mgk563
Fig 7.
Test data is given in Table 12.
Deï¬nitions test circuit:
RT = Termination resistance should be equal to output impedance Zo of the pulse generator.
CL = Load capacitance including jig and probe capacitance.
RL = Load resistor.
Load circuitry for switching times
Table 12: Test data
Type
Input
VI
tr, tf
74HC245
VCC
6 ns
74HCT245
3V
6 ns
Test
tPHL, tPLH
open
open
tPZH, tPHZ
GND
GND
tPZL, tPLZ
VCC
VCC
9397 750 14502
Product data sheet
Rev. 03 â 31 January 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
14 of 22
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