ST3243EC

Active

?15kV ESD protected 3 to 5.5V, 400kbps, RS-232 transceiver with auto power-down

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Product overview

Description

The ST3243E 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 and enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver input are protected to ±8 kV USING IEC 1000-4-2 contact discharge and ±15 kV using the human body model. The receiver R2 is always active to implement a wake-up feature for serial port. The ST3243E 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 250kbps while maintaining RS-232 output levels.
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 (expert R2B) are shut off, and supply current is reduced to 1 µA.
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, subnotebook, palmtop computers, battery-powered equipment, hand-held equipment, peripherals and printers.
  • All features

    • Meet EIA/TIA-232 specifications down to 3 V
    • 0.1 µF external capacitors
    • ESD protection for RS-232 I/O pins: ±8 kV IEC 1000-4-2 contact discharge ±15 kV human body model
    • 250 Kbps minimum guaranteed data rate
    • 1 µA supply current achieved when in auto power-down
    • Guaranteed mouse drive ability
    • Available in SO-28, SSOP-28, TSSOP28 and flip-chip28 packages
    • Guaranteed 6 V/ms slew rate range

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STMicroelectronics - ST3243EC

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST3243ECTR-E
Active
TSSOP-28 Industrial Ecopack3

ST3243ECTR-E

Package:

TSSOP-28

Material Declaration**:

Marketing Status

Active

Package

TSSOP-28

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
ST3243ECTR-E No availability of distributors reported, please contact our sales office Buy Direct
Active
EAR99 NEC Tape And Reel TSSOP-28 0 70 PHILIPPINES 1.29 / 1k

ST3243ECTR-E

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.29 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

TSSOP-28

Operating Temperature (°C)

(min)

0

(max)

70

Budgetary Price (US$)* / Qty

1.29 / 1k

Country of Origin

PHILIPPINES

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors