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54ACT245L データシートの表示(PDF) - National ->Texas Instruments

部品番号54ACT245L National-Semiconductor
National ->Texas Instruments National-Semiconductor
コンポーネント説明Octal Bidirectional Transceiver with TRI-STATE® Inputs/Outputs
54ACT245L Datasheet PDF : 9 Pages
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DC Characteristics for ’AC Family Devices (Continued)
Symbol
IOLD
IOHD
ICC
IOZT
Parameter
VCC
(V)
(Note 3) Minimum
5.5
Dynamic Output
Current
5.5
Maximum Quiescent
5.5
Supply Current
Maximum I/O
Leakage Current
5.5
54AC
TA =
−55˚C to +125˚C
Guaranteed
Limits
50
−50
80.0
±5.5
Units
mA
mA
µA
µA
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.
ICC for 54AC @ 25˚C is identical to 74AC @ 25˚C.
DC Characteristics for ’ACT Family Devices
Symbol
Parameter
VIH
Minimum High Level
Input Voltage
VIL
Maximum Low Level
Input Voltage
VOH
Minimum High Level
Output Voltage
54ACT
VCC
TA =
(V)
−55˚C to +125˚C
Guaranteed
Limits
4.5
2.0
5.5
2.0
4.5
0.8
5.5
0.8
4.5
4.4
5.5
5.4
Units
V
V
V
4.5
3.70
V
5.5
4.70
VOL
Maximum Low Level
4.5
0.1
V
Output Voltage
5.5
0.1
4.5
0.50
V
5.5
0.50
IIN
Maximum Input Leakage
5.5
±1.0
µA
Current
ICCT
IOLD
IOHD
Maximum
ICC/Input
(Note 6) Minimum
Dynamic Output
Current
5.5
1.6
mA
5.5
50
mA
5.5
−50
mA
ICC
Maximum Quiescent
5.5
80.0
µA
Supply Current
Conditions
VOLD = 1.65V Max
VOHD = 3.85V Min
VIN = VCC
or GND
VI(OE) = VIL, VIH
VI = VCC, GND
VO = VCC, GND
Conditions
VOUT = 0.1V
or VCC − 0.1V
VOUT = 0.1V
or VCC − 0.1V
IOUT = −50 µA
(Note 5)
VIN = VIL or VIH
IOH
−24 mA
−24 mA
IOUT = 50 µA
(Note 5)
VIN = VIL or VIH
IOL
24 mA
24 mA
VI = VCC, GND
VI = VCC − 2.1V
VOLD = 1.65V Max
VOHD = 3.85V Min
VIN = VCC
or GND
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General Description
The ’AC/’ACT245 contains eight non-inverting bidirectional buffers with TRI-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 24 mA at both the A and B ports. The Transmit/Receive (T/R) input determines the direction of data flow through the bidi rectional transceiver. Transmit (active-HIGH) enables data from A ports to B ports; Receive (active-LOW) enables data from B ports to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a HIGH Z condition.

Features
■ ICC and IOZ reduced by 50%
■ Noninverting buffers
■ Bidirectional data path
■ A and B outputs source/sink 24 mA
■ ’ACT245 has TTL-compatible inputs
■ Standard Microcircuit Drawing (SMD)
   — ’AC245: 5962-87758
   — ’ACT245: 5962-87663

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