ST3243C:3 TO 5.5 V, 400 Kbps, RS-232 TRANSCEIVER WITH AUTO-POWER-DOWN, [0oC, 70oC] TEMPERATURE RANGE

The ST3243B/ST3243C devices consist of 3 drivers, 5 receivers and a dual charge pump circuit. The devices meet 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 inputs are protected to ±8 kV using IEC61000-4-2 contact discharge and ±15 kV IEC61000-4-2 air discharge.

The receiver R2 is always active to implement a wake-up feature for the serial port.

The ST3243B/ST3243C devices have 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 devices are 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 FORCEOFFis high. During this mode of operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFFis 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 FORCEOFFare 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.

Key Features

  • ESD protection for RS-232 I/O pins
    • ±8 kV IEC61000-4-2 contact discharge
    • ±15 kV IEC61000-4-2 air discharge
  • 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 package
产品规格
DescriptionVersionSize
DS2153: ±15 kV ESD protected 3 to 5.5 V, 400 kbps, RS-232 transceiver with auto-power-down12.0468 KB
手册
DescriptionVersionSize
Products and Solutions for Factory Automation and Control1.03 MB
样片和购买
型号PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
ST3243CPRSSOP 28 10.2x5.3Tape And Reel0701.291000NECEAR99PHILIPPINES
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
ST3243CPRSSOP 28 10.2x5.3IndustrialEcopack3md_b2-wspc-ssop-wspc-28-wspc-10.2x5.3_e2b2-wspc-uf46jc5.pdf
md_b2-wspc-ssop-wspc-28-wspc-10.xml
±15 kV ESD protected 3 to 5.5 V, 400 kbps, RS-232 transceiver with auto-power-down ST3243C
STEVAL-SPIMD20V1 demonstration kit based on the SPIMD20 integrated motor drive STEVAL-SPIMD20V1
md_b2-wspc-ssop-wspc-28-wspc-10.2x5.3_e2b2-wspc-uf46jc5.pdf ST3243C
md_b2-wspc-ssop-wspc-28-wspc-10.xml ST3243C