Datasheet > ST3243_06

ST3243_06

更新时间： 2024-11-18 04:02:23

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
20页	317K
描述
3 to 5.5V, 400Kbps, RS-232 Transceiver with auto-powerdown

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中文翻译

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ST3243_06 数据手册

ST3243

3 to 5.5V, 400Kbps, RS-232 Transceiver

with auto-powerdown

General features

■ 1µA supply current achieved when in auto-

powerdown

■ 250kbps minimum guaranteed data rate

■ Guaranteed 6V/µs slew rate range

■ Guaranteed mouse drive ability

SOP

■ 0.1µF external capacitors

■ Meet EIA/TIA-232 specifications down to 3V

■ Available in SO-28, SSOP-28 and TSSOP28

SSOP

TSSOP

Description

sense a valid RS-232 signal, the driver outputs

are disabled. If FORCEOFF is set low, both

drivers and receivers (expert R2B) are shut off,

and supply current is reduced to 1mA.

Disconnecting the serial port or turning off the

peripheral drives causes the auto-powerdown

condition to occur.

The ST3243 device consists of 3 drivers, 5

receivers and a dual charge-pump circuit. The

device meets the requirements of EIA/TIA and

V.28/V.24 communication standards providing

high data rate capability.

The receiver R2 is always active to implement a

wake-up feature for serial port.

Auto-powerdown can be disabled when

FORCEON and FORCEOFF are high, and should

be done when driving a serial mouse. With Auto-

powerdown enabled, the device is activated

automatically when a valid signal is applied to any

receiver input.

The ST3243 has a proprietary low-dropout

transmitter output stage enabling true RS-232

performance from a 3.0V to 5.5V supply with a

dual charge pump. The device is guaranteed to

run at data rates of 250kbps while maintaining

RS-232 output levels.

Typical application are in notebook, subnotebook,

palmtop computers, battery-powered equipment,

hand-held equipment, peripherals and printers.

The Auto-powerdown feature functions when

FORCEON is low and FORCEOFF is high. During

this mode of operation, if the device does not

Order code

Part number

Temperature range

Package

Comments

ST3243CDR

ST3243CPR

ST3243CTR

ST3243BTR

0 to 70 °C

-40 to 85 °C

SO-28 (Tape & Reel)

SSOP-28 (Tape & Reel)

TSSOP28 (Tape & Reel)

1000 parts per reel

1350 parts per reel

2500 parts per reel

March 2006

Rev 7

1/20

www.st.com

12 3 4 5 6 7...20

中文翻译

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与ST3243_06相关器件

型号	品牌	获取价格	描述	数据表
ST3243B	STMICROELECTRONICS	获取价格	3 TO 5.5V 400KBPS. RS-232 TRANSCEIVER WITH AUTO-POWERDOWN
ST3243B_07	STMICROELECTRONICS	获取价格	3 to 5.5 V, 400 Kbps, RS-232 transceiver with auto-power-down
ST3243B_11	STMICROELECTRONICS	获取价格	3 to 5.5 V, 400 kbps, RS-232 transceiver with auto-power-down
ST3243BD	STMICROELECTRONICS	获取价格	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN
ST3243BDR	STMICROELECTRONICS	获取价格	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN
ST3243BPR	STMICROELECTRONICS	获取价格	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN
ST3243BTR	STMICROELECTRONICS	获取价格	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN
ST3243C	STMICROELECTRONICS	获取价格	3 TO 5.5V 400KBPS. RS-232 TRANSCEIVER WITH AUTO-POWERDOWN
ST3243CD	STMICROELECTRONICS	获取价格	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN
ST3243CDR	STMICROELECTRONICS	获取价格	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN

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