ST3243B datasheet(1/22 Pages) STMICROELECTRONICS

部件名	ST3243B

功能描述	3 to 5.5 V, 400 Kbps, RS-232 transceiver with auto-power-down

PDF	22 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 22 page

November 2007

Rev 8

1/22

22

ST3243B

ST3243C

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

with auto-power-down

Features

■ 1 µA supply current achieved when in auto-

power-down

■ 250 kbps minimum guaranteed data rate

■ Guaranteed 6 V/µs slew rate range

■ Guaranteed mouse drive ability

■ 0.1 µF external capacitors

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

■ Available in SSOP-28 and TSSOP28

Description

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.

The ST3243 has a proprietary low-dropout

transmitter output stage enabling true RS-232

performance from a 3.0 V to 5.5 V supply with a

dual charge pump. The device is guaranteed to

run at data rates of 250 kbps while maintaining

RS-232 output levels.

The Auto-power-down 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 (expert R2B) are shut off,

and supply current is reduced to 1 mA.

Disconnecting the serial port or turning off the

peripheral drives causes the auto-power-down

condition to occur.

Auto-power-down can be disabled when

FORCEON and FORCEOFF are high, and should

be done when driving a serial mouse. With Auto-

power-down enabled, the device is activated

automatically when a valid signal is applied to any

receiver input.

Typical application are in notebook, sub-

notebook, palmtop computers, battery-powered

equipment, hand-held equipment, peripherals and

printers.

SSOP

TSSOP

Table 1.

Device summary

Order code

Temperature range

Package

Packaging

ST3243CPR

0 to 70 °C

SSOP-28 (tape and reel)

1350 parts per reel

ST3243BTR

-40 to 85 °C

TSSOP28 (tape and reel)

2500 parts per reel

www.st.com

类似零件编号 - ST3243B

制造商	部件名	数据表	功能描述
STMicroelectronics	ST3243BD	275Kb / 11P	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN May-2002
	ST3243BD	255Kb / 14P	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN Jan-2004
	ST3243BDR	275Kb / 11P	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN May-2002
	ST3243BDR	255Kb / 14P	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN Jan-2004
	ST3243BPR	275Kb / 11P	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN May-2002

More results

类似说明 - ST3243B

制造商	部件名	数据表	功能描述
STMicroelectronics	ST3243	275Kb / 11P	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN May-2002
	ST3243	255Kb / 14P	3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN Jan-2004
	ST3243	316Kb / 20P	3 to 5.5V, 400Kbps, RS-232 Transceiver with auto-powerdown 31-Mar-2006
	ST3222B	616Kb / 13P	3 to 3.6 V, low power, up to 400 kbps RS-232 drivers and receivers 21-Jan-2008
	ST3232B	760Kb / 18P	3 to 5.5 V, low power, up to 400 kbps RS-232 drivers and receivers 08-Feb-2008
	ST3241EB	654Kb / 15P	±15 kV ESD protected 3 to 5.5 V, 400 kbps, RS-232 transceiver with auto-power-down 13-Nov-2007
Texas Instruments	TRSF23243	658Kb / 17P	3-V TO 5.5-V DUAL RS-232 PORT
STMicroelectronics	ST3241EB	274Kb / 13P	±15 kV ESD protected 3 to 5.5 V, 400 kbps, RS-232 transceiver with auto-power-down 28-Sep-2010
	ST3243B	242Kb / 17P	3 to 5.5 V, 400 kbps, RS-232 transceiver with auto-power-down 07-Oct-2011
	ST3243ECTR-E	633Kb / 16P	(,-) 15 kV ESD protected 3 to 5.5 V, 400 kbps, RS-232 transceiver with auto power-down 16-Oct-2009