홈 로직 및 전압 변환 플립플롭, 래치 및 레지스터 D형 플립플롭
홈
로직 및 전압 변환
플립플롭, 래치 및 레지스터
D형 플립플롭

SN74LVC821A

활성

3상 출력을 지원하는 10비트 버스 인터페이스 플립플롭

지금 주문
데이터 시트

SN74LVC821A

활성
데이터 시트 지금 주문

제품 상세 정보

Number of channels 10 Technology family LVC Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 3.6 Input type Standard CMOS Output type 3-State Clock frequency (max) (MHz) 150 IOL (max) (mA) 24 IOH (max) (mA) -24 Supply current (max) (µA) 10 Features Balanced outputs, Over-voltage tolerant inputs, Partial power down (Ioff), Very high speed (tpd 5-10ns) Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 10 Technology family LVC Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 3.6 Input type Standard CMOS Output type 3-State Clock frequency (max) (MHz) 150 IOL (max) (mA) 24 IOH (max) (mA) -24 Supply current (max) (µA) 10 Features Balanced outputs, Over-voltage tolerant inputs, Partial power down (Ioff), Very high speed (tpd 5-10ns) Operating temperature range (°C) -40 to 85 Rating Catalog
SOIC (DW) 24 159.65 mm² 15.5 x 10.3 SSOP (DB) 24 63.96 mm² 8.2 x 7.8 TSSOP (PW) 24 49.92 mm² 7.8 x 6.4 TVSOP (DGV) 24 32 mm² 5 x 6.4
  • Operates From 1.65 V to 3.6 V
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 7.3 ns at 3.3 V
  • Typical VOLP (Output Ground Bounce)
       <0.8 V at VCC = 3.3 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot)
       >2 V at VCC = 3.3 V, TA = 25°C
  • Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC)
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
  • Operates From 1.65 V to 3.6 V
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 7.3 ns at 3.3 V
  • Typical VOLP (Output Ground Bounce)
       <0.8 V at VCC = 3.3 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot)
       >2 V at VCC = 3.3 V, TA = 25°C
  • Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC)
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)

This 10-bit bus-interface flip-flop is designed for 1.65-V to 3.6-V VCC operation.

The SN74LVC821A features 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. This device is particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.

The ten flip-flops are edge-triggered D-type flip-flops. On the positive transition of the clock (CLK) input, the device provides true data at the Q outputs.

A buffered output-enable (OE)\ input can be used to place the ten outputs in either a normal logic state (high or low logic levels) or the 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 interface or pullup components.

OE\ does not affect the internal operations of the latch. Previously stored data can be retained or new data can be entered while the outputs are in the high-impedance state.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

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.

This 10-bit bus-interface flip-flop is designed for 1.65-V to 3.6-V VCC operation.

The SN74LVC821A features 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. This device is particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.

The ten flip-flops are edge-triggered D-type flip-flops. On the positive transition of the clock (CLK) input, the device provides true data at the Q outputs.

A buffered output-enable (OE)\ input can be used to place the ten outputs in either a normal logic state (high or low logic levels) or the 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 interface or pullup components.

OE\ does not affect the internal operations of the latch. Previously stored data can be retained or new data can be entered while the outputs are in the high-impedance state.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

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.
filter 기타 D형 플립플롭 찾기
다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
SN74AUC16374 활성 3상 출력을 지원하는 16비트 에지 트리거 D형 플립플롭 Smaller voltage range (0.8V to 2.7V), shorter average propagation delay (1.7ns)
비교 대상 장치와 유사한 기능
SN74AC245 활성 3상 출력을 지원하는 8진 버스 트랜시버 Different voltage range (2V to 6V), longer average propagation delay (7ns)
SN74LVC574A 활성 3상 출력을 지원하는 8진 에지 트리거 D형 플립플롭 Voltage range 1.65V to 3.6V, average propagation delay 5.5ns, average drive strength 24mA
SN74LVC74A 활성 클리어 및 프리셋을 지원하는 듀얼 양극 에지 트리거 D형 플립플롭 Voltage range 1.65V to 3.6V, average propagation delay 5.5ns, average drive strength 24mA

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
28개 모두 보기
유형 직함 날짜
* Data sheet SN74LVC821A datasheet (Rev. J) 2003/07/31
Application note Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 2022/12/15
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 2021/07/26
Selection guide Little Logic Guide 2018 (Rev. G) 2018/07/06
Selection guide Logic Guide (Rev. AB) 2017/06/12
Application note How to Select Little Logic (Rev. A) 2016/07/26
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
Product overview Design Summary for WCSP Little Logic (Rev. B) 2004/11/04
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004/07/08
Application note Selecting the Right Level Translation Solution (Rev. A) 2004/06/22
User guide Signal Switch Data Book (Rev. A) 2003/11/14
Application note Use of the CMOS Unbuffered Inverter in Oscillator Circuits 2003/11/06
User guide LVC and LV Low-Voltage CMOS Logic Data Book (Rev. B) 2002/12/18
Application note Texas Instruments Little Logic Application Report 2002/11/01
Application note TI IBIS File Creation, Validation, and Distribution Processes 2002/08/29
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 Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices 2002/05/10
More literature STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS 2002/03/27
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 LVC Characterization Information 1996/12/01
Application note Input and Output Characteristics of Digital Integrated Circuits 1996/10/01
Application note Live Insertion 1996/10/01
Design guide Low-Voltage Logic (LVC) Designer's Guide 1996/09/01
Application note Understanding Advanced Bus-Interface Products Design Guide 1996/05/01

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

14-24-LOGIC-EVM — 14핀~24핀 D, DB, DGV, DW, DYY, NS 및 PW 패키지용 로직 제품 일반 평가 모듈

14-24-LOGIC-EVM 평가 모듈(EVM)은 14핀~24핀 D, DW, DB, NS, PW, DYY 또는 DGV 패키지에 있는 모든 로직 장치를 지원하도록 설계되었습니다.

사용 설명서: PDF | HTML
TI.com에서 구매 불가
시뮬레이션 모델

SN74LVC821A IBIS Model

SCAM049.ZIP (41 KB) - IBIS Model
다운로드
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
SOIC (DW) 24 Ultra Librarian
SSOP (DB) 24 Ultra Librarian
TSSOP (PW) 24 Ultra Librarian
TVSOP (DGV) 24 Ultra Librarian
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

포럼 주제 모두 보기(영문)

콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

품질, 패키징, TI에서 주문하는 데 대한 질문이 있다면 TI 지원을 방문하세요. ​​​​​​​​​​​​​​

동영상