74AC646SC

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74AC646 74ACT646
AC Electrical Characteristics for ACT
Note 10: Voltage Range 5.0 is 5.0V ± 0.5V
AC Operating Requirements for ACT
Note 11: Voltage Range 5.0 is 5.0V ± 0.5V
Capacitance
V
CC
T
A
= +25°CT
A
= 40°C to +85°C
Symbol Parameter (V)
C
L
= 50 pF C
L
= 50 pF
Units
(Note 10) Min Typ Max Min Max
t
PLH
Propagation Delay
5.0 3.5 12.0 14.5 3.0 16.0 ns
Clock to Bus
t
PHL
Propagation Delay
5.0 4.0 12.0 14.5 3.5 16.0 ns
Clock to Bus
t
PLH
Propagation Delay
5.0 3.0 8.5 10.5 2.5 11.5 ns
Bus to Bus
t
PHL
Propagation Delay
5.0 2.5 8.5 10.5 2.0 11.5 ns
Bus to Bus
t
PLH
Propagation Delay
SBA or SAB to A
n
to B
n
5.0 3.0 9.5 11.5 2.5 12.5 ns
(w/A
n
or B
n
, HIGH or LOW)
t
PHL
Propagation Delay
SBA or SAB to A
n
to B
n
5.0 3.0 9.5 11.5 2.5 12.5 ns
(w/A
n
or B
n
, HIGH or LOW)
t
PZH
Enable Time
5.0 2.0 9.0 11.0 1.5 12.0 ns
G
to A
n
or B
n
t
PZL
Enable Time
5.0 3.5 9.0 11.0 3.0 12.0 ns
G to A
n
or B
n
t
PHZ
Disable Time
5.0 5.0 10.5 13.0 4.5 14.5 ns
G
to A
n
or B
n
t
PLZ
Disable Time
5.0 3.5 10.0 12.5 3.0 14.0 ns
G
to A
n
or B
n
t
PZH
Enable Time
5.0 2.0 6.5 10.5 1.5 11.5 ns
DIR to A
n
or B
n
t
PZL
Enable Time
5.0 3.5 6.5 10.5 3.0 11.5 ns
DIR to A
n
or B
n
t
PHZ
Disable Time
5.0 5.0 8.5 12.5 4.5 13.5 ns
DIR to A
n
or B
n
t
PLZ
Disable Time
5.0 3.5 8.5 12.5 3.0 13.5 ns
DIR to A
n
or B
n
V
CC
T
A
= +25°C T
A
= 40°C to +85°C
Symbol Parameter (V)
C
L
= 50 pF C
L
= 50 pF
Units
(Note 11) Typ Guaranteed Minimum
t
S
Setup Time, HIGH or LOW
5.0 2.5 7.0 8.0 ns
BUS to Clock
t
H
Hold Time, HIGH or LOW
5.0 0 2.5 2.5 ns
Bus to Clock
t
W
Clock Pulse Width
5.0 4.5 7.0 8.0 ns
HIGH or LOW
Symbol Parameter Typ Units Conditions
C
IN
Input Capacitance 4.5 pF V
CC
= OPEN
C
I/O
Input/Output Capacitance 15.0 pF V
CC
= 5.0V
C
PD
Power Dissipation Capacitance 60.0 pF V
CC
= 5.0V
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74AC646 74ACT646
Physical Dimensions inches (millimeters) unless otherwise noted
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
Package Number M24B
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74AC646 74ACT646 Octal Transceiver/Register with 3-STATE Outputs
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Package Number N24C
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILDS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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74AC646SC

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
IC TRANSCVR NON-INVERT 6V 24SOIC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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