인터페이스 RS-232 트랜시버

SN65C3238E

활성

+/-15kV IEC-ESD 보호를 지원하는 3~5.5V 다중 채널 1Mbps RS-232 라인 드라이버/리시버

제품 상세 정보

Drivers per package 5 Receivers per package 3 Logic voltage (min) (V) 3.3 Data rate (max) (Mbps) 1 Main supply voltage (nom) (V) 3.3, 5 Features Auto-Powerdown Plus ESD HBM (kV) 15 Rating Catalog Operating temperature range (°C) -40 to 85 Vout (typ) (V) 5.4
Drivers per package 5 Receivers per package 3 Logic voltage (min) (V) 3.3 Data rate (max) (Mbps) 1 Main supply voltage (nom) (V) 3.3, 5 Features Auto-Powerdown Plus ESD HBM (kV) 15 Rating Catalog Operating temperature range (°C) -40 to 85 Vout (typ) (V) 5.4
SOIC (DW) 28 184.37 mm² 17.9 x 10.3 SSOP (DB) 28 79.56 mm² 10.2 x 7.8
  • RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM)
  • Meet or Exceed the Requirements of TIA/EIA-232-F and ITU v.28 Standards
  • Operate With 3-V to 5.5-V VCC Supply
  • Operate up to 400 kbit/s
  • Five Drivers and Three Receivers
  • Auto-Powerdown Plus Feature Enables Flexible Power-Down Mode
  • Low Standby Current . . . 1 µA Typical
  • External Capacitors . . . 4 × 0.1 µF
  • Accept 5-V Logic Input With 3.3-V Supply
  • Always-Active Noninverting Receiver Output (ROUT1B)
  • Alternative High-Speed Pin-Compatible Device (1 Mbit/s) for SNx5C3238
  • ESD Protection for RS-232 Interface Pins
    • ±15 kV - Human-Body Model (HBM)
    • ±8 kV - IEC61000-4-2, Contact Discharge
    • ±15 kV -IEC61000-4-2, Air-Gap Discharge
  • APPLICATIONS
    • Battery-Powered Systems
    • PDAs
    • Notebooks
    • Subnotebooks
    • Laptops
    • Palmtop PCs
    • Hand-Held Equipment
    • Modems
    • Printers

  • RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM)
  • Meet or Exceed the Requirements of TIA/EIA-232-F and ITU v.28 Standards
  • Operate With 3-V to 5.5-V VCC Supply
  • Operate up to 400 kbit/s
  • Five Drivers and Three Receivers
  • Auto-Powerdown Plus Feature Enables Flexible Power-Down Mode
  • Low Standby Current . . . 1 µA Typical
  • External Capacitors . . . 4 × 0.1 µF
  • Accept 5-V Logic Input With 3.3-V Supply
  • Always-Active Noninverting Receiver Output (ROUT1B)
  • Alternative High-Speed Pin-Compatible Device (1 Mbit/s) for SNx5C3238
  • ESD Protection for RS-232 Interface Pins
    • ±15 kV - Human-Body Model (HBM)
    • ±8 kV - IEC61000-4-2, Contact Discharge
    • ±15 kV -IEC61000-4-2, Air-Gap Discharge
  • APPLICATIONS
    • Battery-Powered Systems
    • PDAs
    • Notebooks
    • Subnotebooks
    • Laptops
    • Palmtop PCs
    • Hand-Held Equipment
    • Modems
    • Printers

The SN65C3238E and SN75C3238E consist of five line drivers, three line receivers, and a dual charge-pump circuit with ±15-kV ESD (HBM) protection on the driver output (DOUT) and receiver input (RIN) terminals. The devices meet the requirements of TIA/EIA-232-F and provide the electrical interface between notebook and subnotebook computer applications. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. In addition, the devices include an always-active noninverting output (ROUT1B), which allows applications using the ring indicator to transmit data while the device is powered down. These devices operate at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew rate.

Flexible control options for power management are featured when the serial port and driver inputs are inactive. The auto-powerdown plus feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the devices do not sense valid signal transitions on all receiver and driver inputs for approximately 30 s, the built-in charge pump and drivers are powered down, reducing the supply current to 1 µA. By disconnecting the serial port or placing the peripheral drivers off, auto-powerdown plus occurs if there is no activity in the logic levels for the driver inputs. Auto-powerdown plus can be disabled when FORCEON and FORCEOFF are high. With auto-powerdown plus enabled, the devices activate automatically when a valid signal is applied to any receiver or driver input. INVALID is high (valid data) if any receiver input voltage is greater than 2.7 V or less than -2.7 V, or has been between -0.3 V and 0.3 V for less than 30 µs. INVALID is low (invalid data) if all receiver input voltages are between -0.3 V and 0.3 V for more than 30 µs. Refer to Figure 5 for receiver input levels.

The SN65C3238E and SN75C3238E consist of five line drivers, three line receivers, and a dual charge-pump circuit with ±15-kV ESD (HBM) protection on the driver output (DOUT) and receiver input (RIN) terminals. The devices meet the requirements of TIA/EIA-232-F and provide the electrical interface between notebook and subnotebook computer applications. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. In addition, the devices include an always-active noninverting output (ROUT1B), which allows applications using the ring indicator to transmit data while the device is powered down. These devices operate at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew rate.

Flexible control options for power management are featured when the serial port and driver inputs are inactive. The auto-powerdown plus feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the devices do not sense valid signal transitions on all receiver and driver inputs for approximately 30 s, the built-in charge pump and drivers are powered down, reducing the supply current to 1 µA. By disconnecting the serial port or placing the peripheral drivers off, auto-powerdown plus occurs if there is no activity in the logic levels for the driver inputs. Auto-powerdown plus can be disabled when FORCEON and FORCEOFF are high. With auto-powerdown plus enabled, the devices activate automatically when a valid signal is applied to any receiver or driver input. INVALID is high (valid data) if any receiver input voltage is greater than 2.7 V or less than -2.7 V, or has been between -0.3 V and 0.3 V for less than 30 µs. INVALID is low (invalid data) if all receiver input voltages are between -0.3 V and 0.3 V for more than 30 µs. Refer to Figure 5 for receiver input levels.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치보다 업그레이드된 기능을 지원하는 드롭인 대체품
TRSF3238E 활성 +/-15kV IEC-ESD 보호를 지원하는 3~5.5V 다중 채널 1Mbps RS-232 라인 드라이버/리시버 The industrial temp version is an EXACT EQUIVALENT in functionality and parametrics to the compared device.

기술 자료

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1개 모두 보기
유형 직함 날짜
* Data sheet SN65C3238E, SN75C3238E datasheet 2006/05/01

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SOIC (DW) 28 Ultra Librarian
SSOP (DB) 28 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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