MC74AC646_06 Datasheet, PDF (6/11 Pages) ON Semiconductor – Octal Transceiver/Register with 3−State Outputs (Non−inverting)

MC74AC646, MC74ACT646
AC OPERATING REQUIREMENTS
Symbol
Parameter
Setup Time, HIGH or LOW
t_s
Bus to Clock
Hold Time, HIGH or LOW
t_h
Bus to Clock
Clock Pulse Width
t_w
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
V_CC*
(V)
T_A = +25°C
C_L = 50 pF
T_A = −40°C
to +85°C
C_L = 50 pF
Unit
Fig.
No.
Typ
Guaranteed Minimum
3.3 2.0
5.0
5.0 1.5
4.0
5.5
4.5
ns
3−9
3.3 −1.5
0
5.0 −0.5
0.5
0
1.0
ns
3−9
3.3 2.0
3.5
5.0 2.0
3.5
4.5
3.5
ns
3−6
DC CHARACTERISTICS
Symbol
Parameter
V_IH
Minimum High Level
Input Voltage
V_IL
Maximum Low Level
Input Voltage
V_OH
Minimum High Level
Output Voltage
74ACT
74ACT
V_CC
(V)
T_A = +25°C
T_A =
−40°C to
+85°C
Typ Guaranteed Limits
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_OL
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
4.5
− 0.36
0.44
5.5
− 0.36
0.44
I_IN
ΔI_CCT
I_OZT
Maximum Input
Leakage Current
Additional Max. I_CC/Input
Maximum
3-State
Current
5.5
− ±0.1
±1.0
5.5
0.6
−
1.5
5.5
− ±0.6
±6.0
I_OLD
I_OHD
I_CC
†Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
5.5
−
−
75
5.5
−
−
−75
5.5
−
8.0
80
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
Unit
Conditions
V
V_OUT = 0.1 V
or V_CC − 0.1 V
V
V_OUT = 0.1 V
or V_CC − 0.1 V
V
I_OUT = −50 μA
*V_IN = V_IL or V_IH
V
−24 mA
I_OH
−24 mA
V
I_OUT = 50 μA
*V_IN = V_IL or V_IH
V
I_OL
24 mA
24 mA
μA
V_I = V_CC, GND
mA
V_I = V_CC − 2.1 V
V_I (OE) = V_IL, V_IH
μA
V_I = V_CC, GND
V_O = V_CC, GND
mA
V_OLD = 1.65 V Max
mA
V_OHD = 3.85 V Min
μA
V_IN = V_CC or GND
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