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参数资料
| 型号： | SN74ABT245BZQNR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | ABT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PBGA20 |
| 封装： | GREEN, PLASTIC, VFBGA-20 |
| 文件页数： | 12/26页 |
| 文件大小： | 1070K |
| 代理商： | SN74ABT245BZQNR |
SN54ABT245A, SN74ABT245B
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS081L JANUARY 1991 REVISED APRIL 2005
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry
disables the outputs, preventing damaging current backflow through the device when it is powered down. The
power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,
which prevents driver conflict.
terminal assignments
1234
A
A1
DIR
VCC
OE
B
A3
B2
A2
B1
C
A5
A4
B4
B3
D
A7
B6
A6
B5
E
GND
A8
B8
B7
FUNCTION TABLE
INPUTS
OPERATION
OE
DIR
OPERATION
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
logic diagram (positive logic)
DIR
OE
A1
B1
To Seven Other Channels
1
2
19
18
Pin numbers shown are for the DB, DGV, DW, FK, J, N, NS, PW, RGY, and W packages.
SN74ABT245B . . . GQN OR ZQN PACKAGE
(TOP VIEW)
1
234
A
B
C
D
E
相关PDF资料 |
PDF描述 |
|---|---|
| SN74ABT245BPWR | ABT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| SN74ABT245BDGVRG4 | ABT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| SN74ABT273PW | ABT SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PDSO20 |
| SN74ABT273PWRG4 | ABT SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PDSO20 |
| SNJ54ABT273W | ABT SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, CDFP20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74ABT25245DW | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| SN74ABT25245NT | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| SN74ABT273 | 制造商:TI 制造商全称:Texas Instruments 功能描述:OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR |
| SN74ABT273DB | 制造商:Texas Instruments 功能描述: |
| SN74ABT273DBLE | 制造商:Texas Instruments 功能描述: |
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