홈 로직 및 전압 변환 버퍼, 드라이버 및 트랜시버 범용 트랜시버
홈
로직 및 전압 변환
버퍼, 드라이버 및 트랜시버
범용 트랜시버

SN74ALVCH16903

활성

패리티 검사기 및 듀얼 3상 출력을 지원하는 3.3V 12비트 범용 버스 드라이버

지금 주문
데이터시트

SN74ALVCH16903

활성
데이터시트 지금 주문

제품 상세 정보

Supply voltage (min) (V) 2.3 Supply voltage (max) (V) 3.6 Number of channels 12 IOL (max) (mA) 24 IOH (max) (mA) -32 Input type Standard CMOS Output type 3-State Features Balanced outputs, Bus-hold, Over-voltage tolerant inputs, Ultra high speed (tpd <5ns) Technology family ALVC Rating Catalog Operating temperature range (°C) -40 to 85
Supply voltage (min) (V) 2.3 Supply voltage (max) (V) 3.6 Number of channels 12 IOL (max) (mA) 24 IOH (max) (mA) -32 Input type Standard CMOS Output type 3-State Features Balanced outputs, Bus-hold, Over-voltage tolerant inputs, Ultra high speed (tpd <5ns) Technology family ALVC Rating Catalog Operating temperature range (°C) -40 to 85
SSOP (DL) 56 190.647 mm² 18.42 x 10.35
  • Member of the Texas Instruments Widebus™ Family
  • EPIC™ (Enhanced-Performance Implanted CMOS) Submicron Process
  • Checks Parity
  • Able to Cascade With a Second SN74ALVCH16903
  • ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • Package Options Include Plastic 300-mil Shrink Small-Outline (DL), Thin Shrink Small-Outline (DGG), and Thin Very Small-Outline (DGV) Packages

Widebus, EPIC are trademarks of Texas Instruments.
  • Member of the Texas Instruments Widebus™ Family
  • EPIC™ (Enhanced-Performance Implanted CMOS) Submicron Process
  • Checks Parity
  • Able to Cascade With a Second SN74ALVCH16903
  • ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • Package Options Include Plastic 300-mil Shrink Small-Outline (DL), Thin Shrink Small-Outline (DGG), and Thin Very Small-Outline (DGV) Packages

Widebus, EPIC are trademarks of Texas Instruments.

This 12-bit universal bus driver is designed for 2.3-V to 3.6-V VCC operation.

The SN74ALVCH16903 has dual outputs and can operate as a buffer or an edge-triggered register. In both modes, parity is checked on APAR, which arrives one cycle after the data to which it applies. The YERR\ output, which is produced one cycle after APAR, is open drain.

MODE selects one of the two data paths. When MODE is low, the device operates as an edge-triggered register. On the positive transition of the clock (CLK) input and when the clock-enable (CLKEN\) input is low, data set up at the A inputs is stored in the internal registers. On the positive transition of CLK and when CLKEN\ is high, only data set up at the 9A-12A inputs is stored in their internal registers. When MODE is high, the device operates as a buffer and data at the A inputs passes directly to the outputs. 11A/YERREN\ serves a dual purpose; it acts as a normal data bit and also enables YERR\ data to be clocked into the YERR\ output register.

When used as a single device, parity output enable (PAROE\) must be tied high; when parity input/output (PARI/O) is low, even parity is selected and when PARI/O is high, odd parity is selected. When used in pairs and PAROE\ is low, the parity sum is output on PARI/O for cascading to the second SN74ALVCH16903. When used in pairs and PAROE\ is high, PARI/O accepts a partial parity sum from the first SN74ALVCH16903.

A buffered output-enable (OE\) input can be used to place the 24 outputs and YERR\ in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components.

OE\ does not affect the internal operation of the device. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

The SN74ALVCH16903 is characterized for operation from 0°C to 70°C.

This 12-bit universal bus driver is designed for 2.3-V to 3.6-V VCC operation.

The SN74ALVCH16903 has dual outputs and can operate as a buffer or an edge-triggered register. In both modes, parity is checked on APAR, which arrives one cycle after the data to which it applies. The YERR\ output, which is produced one cycle after APAR, is open drain.

MODE selects one of the two data paths. When MODE is low, the device operates as an edge-triggered register. On the positive transition of the clock (CLK) input and when the clock-enable (CLKEN\) input is low, data set up at the A inputs is stored in the internal registers. On the positive transition of CLK and when CLKEN\ is high, only data set up at the 9A-12A inputs is stored in their internal registers. When MODE is high, the device operates as a buffer and data at the A inputs passes directly to the outputs. 11A/YERREN\ serves a dual purpose; it acts as a normal data bit and also enables YERR\ data to be clocked into the YERR\ output register.

When used as a single device, parity output enable (PAROE\) must be tied high; when parity input/output (PARI/O) is low, even parity is selected and when PARI/O is high, odd parity is selected. When used in pairs and PAROE\ is low, the parity sum is output on PARI/O for cascading to the second SN74ALVCH16903. When used in pairs and PAROE\ is high, PARI/O accepts a partial parity sum from the first SN74ALVCH16903.

A buffered output-enable (OE\) input can be used to place the 24 outputs and YERR\ in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components.

OE\ does not affect the internal operation of the device. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

The SN74ALVCH16903 is characterized for operation from 0°C to 70°C.
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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
SN74LVC861A 활성 3상 출력을 지원하는 10비트 버스 트랜시버 Larger voltage range (1.65V to 5.5V)
비교 대상 장치와 유사한 기능
SN74LVC245A 활성 3상 출력을 지원하는 8진 버스 트랜시버 Larger voltage range (1.65V to 5.5V)

기술 문서

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모두 보기18
유형 직함 날짜
* Data sheet SN74ALVCH16903 datasheet (Rev. D) 2004/08/20
Selection guide Logic Guide (Rev. AB) 2017/06/12
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 2015/12/02
User guide LOGIC Pocket Data Book (Rev. B) 2007/01/16
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004/07/08
Application note TI IBIS File Creation, Validation, and Distribution Processes 2002/08/29
User guide ALVC Advanced Low-Voltage CMOS Including SSTL, HSTL, And ALB (Rev. B) 2002/08/01
More literature Standard Linear & Logic for PCs, Servers & Motherboards 2002/06/13
Application note 16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) 2002/05/22
Application note Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A) 1999/09/08
Application note TI SN74ALVC16835 Component Specification Analysis for PC100 1998/08/03
Application note Logic Solutions for PC-100 SDRAM Registered DIMMs (Rev. A) 1998/05/13
Application note Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices 1997/12/01
Application note Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) 1997/08/01
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 1997/06/01
Application note Input and Output Characteristics of Digital Integrated Circuits 1996/10/01
Application note Live Insertion 1996/10/01
Application note Understanding Advanced Bus-Interface Products Design Guide 1996/05/01

설계 및 개발

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시뮬레이션 모델

SN74ALVCH16903 IBIS Model (Rev. A)

SCEM042A.ZIP (13 KB) - IBIS Model
다운로드
패키지 핀 다운로드
SSOP (DL) 56 옵션 보기
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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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