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參數資料
| 型號： | M5232P |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | RS-232 |
| 英文描述： | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| 中文描述： | 5V的高速RS - 232收發器與0.1uF電容 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 24K |
| 代理商： | M5232P |
Acer Laboratories Inc.
--Confidential, Proprietary--
M5232P : RS-232 Chip
06-28-1997, Document Number: 5232DS02.doc
Acer Labs: 7F, 115 Tung Hsing Street, Taipei 110, Taiwan, R.O.C. Tel: 886-(02) 762-8800 Fax: 762-6060
Page 1
M5232P : Multiple RS-232 Drivers and Receivers
1. Features
n
Drivers
Current Limited Output ... 10mA Typical
Power-off Output impedance ... 300ohm Min.
Slew rate control by load capacitor
Flexible Supply Voltage Range
Input compatible with most TTL and DTL
circuits
n
Receivers
- Input resistance ..... 3kohm to 7kohm
- Input signal range .... ± 30V
- Built-in Input Hysteresis
2. Description
The ALi's M5232P combines three drivers and five receivers from ASP trade standard AP232 bipolar
quadruple drivers and receivers, respectively. The pinout matches the flow through design of the
AP232 to decrease the part count, reduce the board space required, and allow easy interconnection of
the UART and serial-port connector of IBM PC/AT and compatibles. The bipolar circuits and processing
of the M5232P provides a rugged low-cost solution for this function at the expense of quiescent power
and external passive components relative to the AP232.
The M5232P complies with the requirements of the EIA/TIA 232-D and ITU (formally CCITT) v.28
standards. These standards are for data interchange between a host computer and peripheral at
signalling rates up to 20k bits/sec. The switching speeds of the M5232P are fast enough to support
rates up to 120 kbps with lower capacitive loads (shorter cables). Interoperability at the higher signalling
rates cannot be assured unless the designer has design control of the cable and the interface circuits at
both ends. For compatibility with signalling rates to 120 kbps, use of EIA/ITA-423-B (ITU v.10) and EIA/
ITA-422-B (ITU v.11) standards are recommended.
The M5232P is operable at the temperature range of 0
o
C to 75
o
C.
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