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MC74ACT646N bảng dữ liệu(PDF) 3 Page - ON Semiconductor

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Giải thích chi tiết về linh kiện  Octal Transceiver/Register with 3?뭆tate Outputs (Non?뭝nverting)
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MC74AC646, MC74ACT646
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FUNCTION TABLE
Inputs
Data I/O*
Operation or Function
G
DIR
CAB
CBA
SAB
SBA
A0−A7
B0−B7
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
VCC
Supply Voltage
′AC
2.0
5.0
6.0
V
′ACT
4.5
5.0
5.5
Vin, Vout
DC Input Voltage, Output Voltage (Ref. to GND)
0
VCC
V
tr, tf
Input Rise and Fall Time (Note 1)
′AC Devices except Schmitt Inputs
VCC @ 3.0 V
150
VCC @ 4.5 V
40
ns/V
VCC @ 5.5 V
25
tr, tf
Input Rise and Fall Time (Note 2)
′ACT Devices except Schmitt Inputs
VCC @ 4.5 V
10
ns/V
VCC @ 5.5 V
8.0
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.


Số phần tương tự - MC74ACT646N

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