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Part Number: SN54ALS245A
Description: These octal bus transceivers are designed for asynchronous two-way communication between data buses. T...
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SN54ALS245A
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DataSheet
General Description
SN54ALS245A General Description
These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.
The devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending uponthe logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated.
The -1 version of the SN74ALS245A is identical to the standard version, except that the recommended maximum IOL is increased to 48 mA. There is no -1 version of the SN54ALS245A.
SN54ALS245A Maximum Ratings
Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . .7 V
Input voltage, VI: All inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . 7 V
I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .5.5 V
Package thermal impedance, JA (see Note 1): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . 70/W
DW package . . . . . . . . . . . . . . . . . . . . . . .. . . .58/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . .69/W
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . .60/W
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .65 to 150
Input voltage, VI: All inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . 7 V
I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .5.5 V
Package thermal impedance, JA (see Note 1): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . 70/W
DW package . . . . . . . . . . . . . . . . . . . . . . .. . . .58/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . .69/W
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . .60/W
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .65 to 150
SN54ALS245A Features
* 4.5-V to 5.5-V VCC Operation
* Max tpd of 5.5 ns at 5 V
* 3-State Outputs Drive Bus Lines Directly
* pnp Inputs Reduce dc Loading
* Max tpd of 5.5 ns at 5 V
* 3-State Outputs Drive Bus Lines Directly
* pnp Inputs Reduce dc Loading
SN54ALS245A Connection Diagram
SN54ALS245A
PDF/DataSheet Download
- Datasheet: SN54ALS245A
- File Size: 114891 KB
- Manufacturer:
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- ·SN54/74LS00
- QUAD 2-INPUT NAND GATE LOW POWER SCHOTTKY
- 34868 KB
- ·SN54/74LS01
- QUAD 2-INPUT NAND GATE LOW POWER SCHOTTKY
- 33930 KB
- ·SN54/74LS02
- QUAD 2-INPUT NOR GATE
- 36438 KB
- ·SN54/74LS03
- QUAD 2-INPUT NAND GATE
- 33910 KB
- ·SN54/74LS04
- HEX INVERTER
- 35052 KB
- ·SN54/74LS05
- HEX INVERTER
- 34028 KB
- ·SN54/74LS08
- QUAD 2-INPUT AND GATE
- 34431 KB
- ·SN54/74LS09
- QUAD 2-INPUT AND GATE
- 33463 KB
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