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參數(shù)資料
| 型號(hào)： | SN75C189DB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | QUADRUPLE LOW-POWER LINE RECEIVERS |
| 中文描述： | 翻兩番低功耗線路接收器 |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大?。?/td> | 150K |
| 代理商： | SN75C189DB |
SN75C189, SN75C189A
QUADRUPLE LOW-POWER LINE RECEIVERS
SLLS041G – OCTOBER 1988 – REVISED JANUARY 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Meet or Exceed the Requirements of
TIA/EIA-232-F and ITU Recommendation
V.28
Low Supply Current
. . .
420
μ
A Typ
Preset On-Chip Input Noise Filter
Built-in Input Hysteresis
Response and Threshold Control Inputs
Push-Pull Outputs
Functionally Interchangeable and
Pin-to-Pin Compatible With
Texas Instruments SN75189/SN75189A and
Motorola MC1489/MC1489A
Package Options Include Plastic
Small-Outline (D) and Shrink Small-Outline
(DB) Packages, and Standard Plastic (N)
DIP
description
The SN75C189 and SN75C189A are low-power, bipolar, quadruple line receivers that are used to interface data
terminal equipment (DTE) with data circuit-terminating equipment (DCE). These devices have been designed
to conform to TIA/EIA-232-F.
The SN75C189 has a 0.33-V typical hysteresis, compared with 0.97 V for the SN75C189A. Each receiver has
provision for adjustment of the overall input threshold levels. This is achieved by choosing external series
resistors and voltages to provide bias levels for the response-control pins. The output is in the high logic state
if the input is open circuit or shorted to ground.
These devices have an on-chip filter that rejects input pulses of less than 1-
μ
s duration. An external capacitor
can be connected from the control pins to ground to provide further input noise filtering for each receiver.
The SN75C189 and SN75C189A have been designed using low-power techniques in a bipolar technology. In
most applications, these receivers interface to single inputs of peripheral devices such as UARTs, ACEs, or
microprocessors. By using sampling, such peripheral devices usually are insensitive to the transition times of
the input signals. If this is not the case, or for other uses, it is recommended that the SN75C189 and SN75C189A
outputs be buffered by single Schmitt input gates or single gates of the HCMOS, ALS, or 74F logic families.
The SN75C189 and SN75C189A are characterized for operation from 0
°
C to 70
°
C.
Copyright
2000, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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5
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7
14
13
12
11
10
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8
1A
1 CONT
1Y
2A
2 CONT
2Y
GND
V
CC
4A
4 CONT
4Y
3A
3 CONT
3Y
D, DB, OR N PACKAGE
(TOP VIEW)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN75C189DE4 | 功能描述:RS-232接口集成電路 Quadruple Low-Power Line Receiver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| SN75C189DG4 | 功能描述:RS-232接口集成電路 Quad Lo Pwr Line Driver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| SN75C189DR | 功能描述:RS-232接口集成電路 Quadruple Low-Power Line Receiver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| SN75C189DRE4 | 功能描述:RS-232接口集成電路 Quadruple Low-Power Line Receiver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| SN75C189DRG4 | 功能描述:RS-232接口集成電路 Quad Lo Pwr Line Driver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
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