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
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm) SSOP (DB) 16 48.36 mm² (6.2 mm × 7.8 mm) VQFN (RGT) 16 9 mm² (3 mm × 3 mm) SOT-23-THN (DYY) 16 8.4 mm² (4.2 mm × 2 mm)
  • 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.

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TRSF3221E ACTIVO Controlador/receptor de línea RS-232 de 3 V a 5,5 V de canal único y 1 Mbps con protección IEC-ESD d Pin-to-pin upgrade with higher 1-Mbps data rate

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 8
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos 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 10/12/2024
Nota sobre la aplicación RS-232 Glossary and Selection Guide PDF | HTML 23/05/2023
Nota sobre la aplicación Understanding Power Requirements in RS-232 Applications (Rev. B) 26/04/2013
Nota sobre la aplicación AN-438 Low Power RS-232C Driver and Receiver in CMOS (Rev. B) 26/04/2013
Nota sobre la aplicación Removing Ground Noise in Data Transmission Systems 5/10/2007
Más documentación RS-232 IEC ESD-Protected Devices From TI (Rev. A) 27/07/2007
Nota sobre la aplicación Interface Circuits for TIA/EIA-232-F (Rev. A) 19/09/2002
Nota sobre la aplicación Low-Voltage, Single-Supply 232-Standard Interface Solutions (Rev. A) 19/09/2000

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

Este módulo de evaluación se utiliza para evaluar el TRS3221E o el TRSF3221E con encapsulado RGT. Todas las señales están disponibles a través de cabezales y puntos de prueba. Las V+ y V- de salida de la bomba de carga también son accesibles. La placa conecta datos y controla niveles lógicos CMOS (...)

Guía del usuario: PDF
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Modelo de simulación

TRS3221E IBIS Model

SLLM457.ZIP (94 KB) - Modelo IBIS
Productos y hardware compatibles
Diseño de referencia

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

Este diseño de referencia proporciona un circuito de conversión de señalización RS-232 a señalización RS-485. Esto permite la comunicación a larga distancia, ya que el alcance soportado por RS-232 es normalmente inferior a 50 pies (15.24 m), mientras que el alcance para RS-485 puede superar los (...)
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TSSOP (PW) 16 Ultra Librarian
SSOP (DB) 16 Ultra Librarian
VQFN (RGT) 16 Ultra Librarian
SOT-23-THN (DYY) 16 Ultra Librarian

Pedidos y calidad

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos