MC74AC640 Datasheet, PDF (5/6 Pages) Motorola, Inc – OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE OUTPUTS

MC74AC640 MC74ACT640
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74ACT
74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Min Typ Max Min Max
tPLH
Propagation Delay
An to Bn or Bn to An
tPHL
Propagation Delay
An to Bn or Bn to An
tPZH
Output Enable Time
tPZL
Output Enable Time
tPHZ
Output Disable Time
tPLZ
Output Disable Time
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
5.0 1.5
5.0 1.5
5.0 1.5
5.0 1.5
5.0 1.5
5.0 1.5
1.5 1.0 8.5
ns
3-5
8.0 1.0 9.0
ns
3-5
10.0 1.0 11.0
ns
3-7
10.0 1.0 11.0
ns
3-8
10.0 1.0 11.0
ns
3-7
10.0 1.0 11.0
ns
3-8
CAPACITANCE
Symbol
Parameter
CIN
CI/O
CPD
Input Capacitance
Input/Output Capacitance
Power Dissipation Capacitance
Value
Typ
Unit
4.5
pF
15
pF
45
pF
Test Conditions
VCC = 5.0 V
VCC = 5.0 V
VCC = 5.0 V
FACT DATA
5-5