MC74AC245 Datasheet, PDF (4/12 Pages) ON Semiconductor – OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE INPUTS/OUTPUTS

MC74AC245, MC74ACT245
AC CHARACTERISTICS (For Figures and Waveforms – See Section 3)
74AC
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
tPLH
tPHL
tPZH
Propagation Delay
An to Bn or Bn to An
Propagation Delay
An to Bn or Bn to An
Output Enable Time
tPZL
Output Enable Time
tPHZ
Output Disable Time
tPLZ
Output Disable Time
*Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
DC CHARACTERISTICS
Symbol
Parameter
VIH
VIL
VOH
Minimum High Level
Input Voltage
Maximum Low Level
Input Voltage
Minimum High Level
Output Voltage
Min Typ Max
3.3 1.5 5.0 8.5
5.0 1.5 3.5 6.5
3.3 1.5 5.0 8.5
5.0 1.5 3.5 6.0
3.3 2.5 7.0 11.5
5.0 1.5 5.0 8.5
3.3 2.5 7.5 12.0
5.0 1.5 5.5 9.0
3.3 2.0 6.5 12.0
5.0 1.5 5.5 9.0
3.3 2.0 7.0 11.5
5.0 1.5 5.5 9.0
VCC
(V)
4.5
5.5
4.5
5.5
4.5
5.5
74ACT
74ACT
TA = +25°C
TA =
–40°C to
+85°C
Typ Guaranteed Limits
1.5 2.0
2.0
1.5 2.0
2.0
1.5 0.8
0.8
1.5 0.8
0.8
4.49 4.4
4.4
5.49 5.4
5.4
VOL
Maximum Low Level
Output Voltage
4.5
– 3.86
3.76
5.5
– 4.86
4.76
4.5 0.001 0.1
0.1
5.5 0.001 0.1
0.1
IIN
Maximum Input
Leakage Current
4.5
– 0.36
0.44
5.5
– 0.36
0.44
5.5
– ±0.1
±1.0
∆ICCT
IOZT
Additional Max. ICC/Input
Maximum
3–State
Current
5.5
0.6
–
1.5
5.5
– ±0.6
±6.0
IOLD
IOHD
ICC
†Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
5.5
–
–
75
5.5
–
–
–75
5.5
–
8.0
80.0
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
74AC
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Min Max
1.0 9.0
1.0 7.0
ns
3–5
1.0 9.0
1.0 7.0
ns
3–5
2.0 12.5
1.0 9.0
ns
3–7
2.0 13.5
1.0 9.5
ns
3–8
1.0 12.5
1.0 10.0
ns
3–7
1.5 13.0
1.0 10.0
ns
3–8
Unit
Conditions
V
VOUT = 0.1 V
or VCC – 0.1 V
V
VOUT = 0.1 V
or VCC – 0.1 V
V
IOUT = –50 µA
*VIN = VIL or VIH
V
–24 mA
IOH
–24 mA
V
IOUT = 50 µA
*VIN = VIL or VIH
V
24 mA
IOL
24 mA
µA
VI = VCC, GND
mA
VI = VCC – 2.1 V
VI (OE) = VIL, VIH
µA
VI = VCC, GND
VO = VCC, GND
mA
VOLD = 1.65 V Max
mA
VOHD = 3.85 V Min
µA
VIN = VCC or GND
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