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參數(shù)資料
| 型號： | SN55ALS161W |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS |
| 中文描述： | 八路通用接口總線收發(fā)器 |
| 文件頁數(shù)： | 2/16頁 |
| 文件大小： | 222K |
| 代理商： | SN55ALS161W |
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
The driver outputs general-purpose interface bus (GPIB I/O ports) feature active bus-terminating resistor
circuits designed to provide a high impedance to the bus when V
CC
= 0. The drivers are designed to handle
sink-current loads up to 48 mA. Each receiver features pnp transistor inputs for high input impedance and
hysteresis of 400 mV on the commercial part, 250 mV on the military part, minimum, for increased noise
immunity. All receivers have 3-state outputs to present a high impedance to the terminal when disabled.
The SN55ALS161 is characterized for operation over the full military temperature range of –55
°
C to 125
°
C. The
SN75ALS161 is characterized for operation from 0
°
C to 70
°
C.
FUNCTION TABLE
RECEIVE/TRANSMIT
CONTROLS
BUS-MANAGEMENT CHANNELS
ATN
SRQ
REN
(CONTROLLED BY DC)
DATA-TRANSFER CHANNELS
DC
TE
ATN
IFC
EOI
DAV
(CONTROLLED BY TE)
NDAC
NRFD
H
H
H
R
T
R
R
T
T
R
R
H
H
L
R
L
L
H
T
R
T
T
R
R
T
T
L
L
L
T
H
L
X
R
T
R
R
R
R
T
T
L
H
X
T
R
T
T
T
T
R
R
H = high level, L = low level, R = receive, T = transmit, X = irrelevant
Direction of data transmission is from the terminal side to the bus side, and the direction of data receiving
is from the bus side to the terminal side.
Data transfer is noninverting in both directions.
ATN is a normal transceiver channel that functions additionally as an internal direction control or talk
enable for EOI whenever the DC and TE inputs are in the same state. When DC and TE are in opposite
states, the ATN channel functions as an independent transceiver only.
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| SN55ALS194 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUADRUPLE DIFFERENTIAL LINE DRIVERS |
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