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MC74AC646DW データシート(PDF) 3 Page - ON Semiconductor

部品番号 MC74AC646DW
部品情報  OCTAL TRANSCEIVER/REGISTER WITH 3-STATE OUTPUTS (NON-INVERTING)
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メーカー  ONSEMI [ON Semiconductor]
ホームページ  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MC74AC646DW データシート(HTML) 3 Page - ON Semiconductor

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MC74AC646, MC74ACT646
http://onsemi.com
3
FUNCTION TABLE
Inputs
Data I/O*
Operation or F nction
G
DIR
CAB
CBA
SAB
SBA
A0–A7
B0–B7
Operation or Function
H
H
X
X
H or L
H or L
X
X
X
X
Input
Input
Isolation
Store A and B Data
L
L
L
L
X
X
X
X
X
X
L
H
Output
Input
Real Time B Data to A Bus
Stored B Data to A Bus
L
L
H
H
X
H or L
X
X
L
H
X
X
Input
Output
Real Time A Data to B Bus
Stored A Data to B Bus
*The data output functions may be enabled or disabled by various signals at the G and DIR inputs. Data input functions are always enabled;
i.e., data at the bus pins will be stored on every LOW–to–HIGH transition of the appropriate clock inputs.
NOTE:
H = HIGH Voltage Level; L = LOW Voltage Level; X = Immaterial;
= LOW–to–HIGH Transition
MAXIMUM RATINGS*
Symbol
Parameter
Value
Unit
VCC
DC Supply Voltage (Referenced to GND)
–0.5 to +7.0
V
Vin
DC Input Voltage (Referenced to GND)
–0.5 to VCC +0.5
V
Vout
DC Output Voltage (Referenced to GND)
–0.5 to VCC +0.5
V
Iin
DC Input Current, per Pin
±20
mA
Iout
DC Output Sink/Source Current, per Pin
±50
mA
ICC
DC VCC or GND Current per Output Pin
±50
mA
Tstg
Storage Temperature
–65 to +150
°C
*Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recom-
mended Operating Conditions.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Typ
Max
Unit
V
Supply Voltage
′AC
2.0
5.0
6.0
V
VCC
Supply Voltage
′ACT
4.5
5.0
5.5
V
Vin, Vout
DC Input Voltage, Output Voltage (Ref. to GND)
0
VCC
V
VCC @ 3.0 V
150
tr, tf
Input Rise and Fall Time (Note 1)
′AC Devices except Schmitt Inputs
VCC @ 4.5 V
40
ns/V
r, f
′AC Devices except Schmitt Inputs
VCC @ 5.5 V
25
ttf
Input Rise and Fall Time (Note 2)
VCC @ 4.5 V
10
ns/V
tr, tf
In ut Rise and Fall Time (Note 2)
′ACT Devices except Schmitt Inputs
VCC @ 5.5 V
8.0
ns/V
TJ
Junction Temperature (PDIP)
140
°C
TA
Operating Ambient Temperature Range
–40
25
85
°C
IOH
Output Current – High
–24
mA
IOL
Output Current – Low
24
mA
1. Vin from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times.
2. Vin from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.


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