Inicio Interfaz Transceptores RS-232

TRS3221E

ACTIVO

Controlador/receptor de línea RS-232 de 3 V a 5,5 V de canal único y 250 kbps con protección IEC-ESD

Detalles del producto

Drivers per package 1 Receivers per package 1 Logic voltage (min) (V) 3.3 Data rate (max) (Mbps) 0.25 Main supply voltage (nom) (V) 3.3, 5 Features Auto-Powerdown ESD HBM (kV) 15 Rating Catalog Operating temperature range (°C) -40 to 85 Vout (typ) (V) 5.4
Drivers per package 1 Receivers per package 1 Logic voltage (min) (V) 3.3 Data rate (max) (Mbps) 0.25 Main supply voltage (nom) (V) 3.3, 5 Features Auto-Powerdown ESD HBM (kV) 15 Rating Catalog Operating temperature range (°C) -40 to 85 Vout (typ) (V) 5.4
SSOP (DB) 16 48.36 mm² 6.2 x 7.8 TSSOP (PW) 16 32 mm² 5 x 6.4 VQFN (RGT) 16 9 mm² 3 x 3
  • ESD Protection for RS-232 Pins
    • ±15kV Human-Body Model (HBM)
    • ±8kV (IEC 61000-4-2, contact discharge)
    • ±15kV (IEC 61000-4-2, air-gap discharge)
  • Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards
  • Operates with 3V to 5.5V VCC supply
  • Operates up to 250kbit/s
  • One driver and one receiver
  • Near chip-scale package, 16-pin VQFN (RGT, 82% smaller than TSSOP package)
  • Low standby current: 1µA Typical
  • External capacitors: 4 × 0.1µF
  • Accepts 5V logic input with 3.3V supply
  • Alternative high-speed pin-compatible device (1Mbit/s)
    • TRSF3221E
  • Auto-powerdown feature automatically disables drivers for power savings
  • ESD Protection for RS-232 Pins
    • ±15kV Human-Body Model (HBM)
    • ±8kV (IEC 61000-4-2, contact discharge)
    • ±15kV (IEC 61000-4-2, air-gap discharge)
  • Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards
  • Operates with 3V to 5.5V VCC supply
  • Operates up to 250kbit/s
  • One driver and one receiver
  • Near chip-scale package, 16-pin VQFN (RGT, 82% smaller than TSSOP package)
  • Low standby current: 1µA Typical
  • External capacitors: 4 × 0.1µF
  • Accepts 5V logic input with 3.3V supply
  • Alternative high-speed pin-compatible device (1Mbit/s)
    • TRSF3221E
  • Auto-powerdown feature automatically disables drivers for power savings

The TRS3221E is a single driver, single receiver RS-232 solution operating from a single VCC supply. The RS-232 pins provide IEC G1000-4-2 ESD protection. 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. The charge pump and four small external capacitors allow operation from a single 3V to 5.5V supply. These devices operate at data signaling rates up to 250kbit/s and a maximum of 30V/µs 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 on the receiver input, the driver output is disabled. If FORCEOFF is set low and EN is high, both the driver and receiver are shut off, and the supply current is reduced to 1 µA. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown condition to occur. Auto-powerdown can be disabled when FORCEON and FORCEOFF are high.

With auto-powerdown enabled, the device is activated automatically when a valid signal is applied to the receiver input. The INVALID output notifies the user if an RS-232 signal is present at the receiver input. INVALID is high (valid data) if the receiver input voltage is greater than 2.7V or less than –2.7V, or has been between –0.3V and 0.3V for less than 30µs. INVALID is low (invalid data) if the receiver input voltage is between –0.3V and 0.3V for more than 30µs. Refer to Figure 6-5 for receiver input levels.

The TRS3221E is a single driver, single receiver RS-232 solution operating from a single VCC supply. The RS-232 pins provide IEC G1000-4-2 ESD protection. 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. The charge pump and four small external capacitors allow operation from a single 3V to 5.5V supply. These devices operate at data signaling rates up to 250kbit/s and a maximum of 30V/µs 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 on the receiver input, the driver output is disabled. If FORCEOFF is set low and EN is high, both the driver and receiver are shut off, and the supply current is reduced to 1 µA. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown condition to occur. Auto-powerdown can be disabled when FORCEON and FORCEOFF are high.

With auto-powerdown enabled, the device is activated automatically when a valid signal is applied to the receiver input. The INVALID output notifies the user if an RS-232 signal is present at the receiver input. INVALID is high (valid data) if the receiver input voltage is greater than 2.7V or less than –2.7V, or has been between –0.3V and 0.3V for less than 30µs. INVALID is low (invalid data) if the receiver input voltage is between –0.3V and 0.3V for more than 30µs. Refer to Figure 6-5 for receiver input levels.

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Documentación técnica

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Tipo Título Fecha
* Data sheet TRS3221E 3V TO 5.5V Single-Channel RS-232 Line Driver and Receiver with ±15kV IEC ESD Protection In Small Package datasheet (Rev. C) PDF | HTML 10 dic 2024
Application note RS-232 Glossary and Selection Guide PDF | HTML 23 may 2023
EVM User's guide TRS3221 EVM User's Guide 10 nov 2020
Application note AN-438 Low Power RS-232C Driver and Receiver in CMOS (Rev. B) 26 abr 2013
Application note Understanding Power Requirements in RS-232 Applications (Rev. B) 26 abr 2013
Application note Removing Ground Noise in Data Transmission Systems 05 oct 2007
More literature RS-232 IEC ESD-Protected Devices From TI (Rev. A) 27 jul 2007
Application note Interface Circuits for TIA/EIA-232-F (Rev. A) 19 sep 2002
Application note Low-Voltage, Single-Supply 232-Standard Interface Solutions (Rev. A) 19 sep 2000

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TRS3221RGTEVM — Controlador/receptor de línea RS-232 multicanal TRS3221EIRGTR con módulo de evaluación de protección

This evaluation module is used to evaluate the TRS3221E or TRSF3221E with RGT package. All signals are available through headers and test points. The charge pump output V+ and V- are accessible too. The board interfaces data and control CMOS logic levels on the terminal block to RS-232 levels (...)

Guía del usuario: PDF
Modelo de simulación

TRS3221E IBIS Model

SLLM457.ZIP (94 KB) - IBIS Model
Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Herramienta de simulación

TINA-TI — Programa de simulación analógica basado en SPICE

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
Guía del usuario: PDF
Diseños de referencia

TIDA-060008 — Diseño de referencia para convertir la señalización RS-232 en la señalización RS-485

This reference design provides a circuit of converting RS-232 signaling to RS-485 signaling. This allows for long-distance communication, since the range supported by RS-232 is normally less than 50 feet while the range for RS-485's can exceed 1000 feet. The design implements bidirectional (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SSOP (DB) 16 Ultra Librarian
TSSOP (PW) 16 Ultra Librarian
VQFN (RGT) 16 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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Soporte y capacitación

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