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參數資料
| 型號： | MAX3243 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 數字信號處理 |
| 英文描述： | Replaced by TMS320F2809 : Digital Signal Processor 100-LQFP |
| 中文描述： | 1µA電源電流、+3V至+5.5V、真RS-232收發器，帶有AutoShutdown |
| 文件頁數： | 1/11頁 |
| 文件大?。?/td> | 160K |
| 代理商： | MAX3243 |
MAX3243
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS350B – APRIL 1999 – REVISED JANUARY 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Single-Chip and Single-Supply Interface for
IBM
PC/AT
Serial Port
Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
Operates With 3-V to 5.5-V V
CC
Supply
Always-Active Noninverting Receiver
Output (ROUT2B)
Operates up to 250 kbit/s
Low Standby Current . . . 1
μ
A Typical
External Capacitors . . . 4
×
0.1
μ
F
Accepts 5-V Logic Input With 3.3-V Supply
Designed to Be Interchangeable With
Maxim MAX3243
Serial-Mouse Driveability
RS-232 Bus-Pin ESD Protection Exceeds
±
15-kV Using Human-Body Model (HBM)
Applications
– Battery-Powered Systems, PDAs,
Notebooks, Laptops, Palmtop PCs, and
Hand-Held Equipment
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages
description
The MAX3243 device
consists of three line drivers, five line receivers, and a dual charge-pump circuit with
±
15-kV ESD protection pin-to-pin (serial-port connection pins, including GND). The device meets the
requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication
controller and the serial-port connector. This combination of drivers and receivers matches that needed for the
typical serial port used in an IBM PC/AT, or compatible. The charge pump and four small external capacitors
allow operation from a single 3-V to 5.5-V supply. In addition, the device includes an always-active noninverting
output (ROUT2B), which allows applications using the ring indicator to transmit data while the device is powered
down. The device operates at data signaling rates up to 250 kbit/s and a maximum of 30-V/
μ
s driver output slew
rate.
Flexible control options for power management are available when the serial port is inactive. The
auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of
operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF
is set low, both drivers and receivers (except ROUT2B) are shut off, and the supply current is reduced to 1
μ
A.
Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown condition to occur.
P
Copyright
2000, Texas Instruments Incorporated
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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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C2+
C2–
V–
RIN1
RIN2
RIN3
RIN4
RIN5
DOUT1
DOUT2
DOUT3
DIN3
DIN2
DIN1
C1+
V+
V
CC
GND
C1–
FORCEON
FORCEOFF
INVALID
ROUT2B
ROUT1
ROUT2
ROUT3
ROUT4
ROUT5
DB, DW, OR PW PACKAGE
(TOP VIEW)
AT, IBM, and PC are trademarks of International Business Machines Corporation.
相關PDF資料 |
PDF描述 |
|---|---|
| MAX3243CUI | 1レA Supply Current, True +3V to +5.5V RS 232 Transceiver with AutoShutdown |
| MAX3243CWI | Replaced by TMS320F2808 : 16-bit , 5V fixed point DSP w/ Flash 68-PLCC |
| MAX3243EAI | 1レA Supply Current, True +3V to +5.5V RS 232 Transceiver with AutoShutdown |
| MAX3243EUI | 1レA Supply Current, True +3V to +5.5V RS 232 Transceiver with AutoShutdown |
| MAX3243DW | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX3243CAI | 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數據速率: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 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3243CAI+ | 功能描述:RS-232接口集成電路 3-5.5V 250kbps Transceiver RoHS:否 制造商:Exar 數據速率: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 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3243CAI+T | 功能描述:RS-232接口集成電路 3-5.5V 250kbps Transceiver RoHS:否 制造商:Exar 數據速率: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 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3243CAI-C78088 | 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數據速率: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 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3243CAI-C78266 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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