MC74AC648 Datasheet, PDF (6/9 Pages) Motorola, Inc – OCTAL TRANSCEIVER/REGISTER WITH 3-STATE OUTPUTS (INVERTING)

MC74AC648 MC74ACT648
AC OPERATING REQUIREMENTS
Symbol
Parameter
ts
Setup Time, HIGH or LOW
Bus to Clock
th
Hold Time, HIGH or LOW
Bus to Clock
tw
Clock Pulse Width
HIGH or LOW
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
74AC
74AC
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Typ
Guaranteed Minimum
3.3 2.0
3.0
5.0 1.5
2.0
3.5
ns
3-9
2.0
3.3 –1.5
0
5.0 –0.5
1.0
0
ns
3-9
1.0
3.3 2.0
3.5
5.0 2.0
3.0
4.0
ns
3-6
3.0
DC CHARACTERISTICS
74ACT
74ACT
Symbol
Parameter
VCC
(V)
TA = +25°C
TA =
–40°C to +85°C
Unit
Conditions
Typ Guaranteed Limits
VIH
VIL
VOH
Minimum High Level
Input Voltage
Maximum Low Level
Input Voltage
Minimum High Level
Output Voltage
4.5
1.5 2.0
2.0
5.5
1.5 2.0
2.0
4.5
1.5 0.8
0.8
5.5
1.5 0.8
0.8
4.5 4.49 4.4
4.4
5.5 5.49 5.4
5.4
V
VOUT = 0.1 V
or VCC – 0.1 V
V
VOUT = 0.1 V
or VCC – 0.1 V
V
IOUT = –50 µA
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
*VIN = VIL or VIH
V
IOH
–24 mA
–24 mA
V
IOUT = 50 µA
IIN
Maximum Input
Leakage Current
*VIN = VIL or VIH
4.5
5.5
0.36
0.44
0.36
0.44
V
IOL
24 mA
24 mA
5.5
±0.1
±1.0
µA
VI = VCC, GND
∆ICCT
IOZT
IOLD
IOHD
ICC
Additional Max. ICC/Input
Maximum
3-State
Current
†Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
5.5
0.6
1.5
5.5
±0.6
±6.0
5.5
75
5.5
–75
5.5
8.0
80
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
* All outputs loaded; thresholds on input associated with output under test.
† Maximum test duration 2.0 ms, one output loaded at a time.
FACT DATA
5-6