홈 로직 및 전압 변환 구성 가능 및 프로그래머블 로직 IC 멀티바이브레이터 원샷
홈
로직 및 전압 변환
구성 가능 및 프로그래머블 로직 IC
멀티바이브레이터 원샷

CD74HCT221

활성

리셋을 지원하는 고속 CMOS 로직 듀얼 단안정 멀티바이브레이터

지금 주문
데이터 시트

CD74HCT221

활성
데이터 시트 지금 주문

제품 상세 정보

Number of channels 2 Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Technology family HCT Input type TTL-Compatible CMOS Output type Push-Pull Supply current (µA) 80 IOL (max) (mA) 4 IOH (max) (mA) -4 Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -55 to 125 Rating Catalog
Number of channels 2 Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Technology family HCT Input type TTL-Compatible CMOS Output type Push-Pull Supply current (µA) 80 IOL (max) (mA) 4 IOH (max) (mA) -4 Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -55 to 125 Rating Catalog
PDIP (N) 16 181.42 mm² 19.3 x 9.4 SOIC (D) 16 59.4 mm² 9.9 x 6
  • Overriding RESET Terminates Output Pulse
  • Triggering from the Leading or Trailing Edge
  • Q and Q\ Buffered Outputs
  • Separate Resets
  • Wide Range of Output-Pulse Widths
  • Schmitt Trigger on B Inputs
  • Fanout (Over Temperature Range)
    • Standard Outputs . . . . 10 LSTTL Loads
    • Bus Driver Outputs . . . . 15 LSTTL Loads
  • Wide Operating Temperature Range . . . –55°C to 125°C
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • HC Types
    • 2V to 6V Operation
    • High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • HCT Types
    • 4.5V to 5.5V Operation
    • Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
    • CMOS Input Compatibility, Il 1µA at VOL, VOH

Data sheet acquired from Harris Semiconductor
  • Overriding RESET Terminates Output Pulse
  • Triggering from the Leading or Trailing Edge
  • Q and Q\ Buffered Outputs
  • Separate Resets
  • Wide Range of Output-Pulse Widths
  • Schmitt Trigger on B Inputs
  • Fanout (Over Temperature Range)
    • Standard Outputs . . . . 10 LSTTL Loads
    • Bus Driver Outputs . . . . 15 LSTTL Loads
  • Wide Operating Temperature Range . . . –55°C to 125°C
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • HC Types
    • 2V to 6V Operation
    • High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • HCT Types
    • 4.5V to 5.5V Operation
    • Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
    • CMOS Input Compatibility, Il 1µA at VOL, VOH

Data sheet acquired from Harris Semiconductor

The ’HC221 and CD74HCT221 are dual monostable multivibrators with reset. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of RX and CX provides a wide range of output pulse widths from the Q and Q\ terminals. Pulse triggering on the B input occurs at a particular voltage level and is not related to the rise and fall time of the trigger pulse.

Once triggered, the outputs are independent of further trigger inputs on A\ and B. The output pulse can be terminated by a LOW level on the Reset (R)\ pin. Trailing Edge triggering (A)\ and leading-edge-triggering (B) inputs are provided for triggering from either edge of the input pulse. On power up, the IC is reset. If either Mono is not used each input (on the unused device) must be terminated either high or low.

The minimum value of external resistance, RX, is typically 500. The minimum value of external capacitance, CX, is 0pF. The calculation for the pulse width is tW = 0.7 RXCX at VCC = 4.5V.

The ’HC221 and CD74HCT221 are dual monostable multivibrators with reset. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of RX and CX provides a wide range of output pulse widths from the Q and Q\ terminals. Pulse triggering on the B input occurs at a particular voltage level and is not related to the rise and fall time of the trigger pulse.

Once triggered, the outputs are independent of further trigger inputs on A\ and B. The output pulse can be terminated by a LOW level on the Reset (R)\ pin. Trailing Edge triggering (A)\ and leading-edge-triggering (B) inputs are provided for triggering from either edge of the input pulse. On power up, the IC is reset. If either Mono is not used each input (on the unused device) must be terminated either high or low.

The minimum value of external resistance, RX, is typically 500. The minimum value of external capacitance, CX, is 0pF. The calculation for the pulse width is tW = 0.7 RXCX at VCC = 4.5V.
filter 기타 멀티바이브레이터 원샷 찾기
다운로드

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
CD74HCT423 활성 리셋을 지원하는 고속 CMOS 로직 듀얼 리트리거러블 단안정 멀티바이브레이터 Voltage range (4.5V to 5.5V), average drive strength (4mA), average propagation delay (22ns)
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
SN74LS123 활성 듀얼 재트리거 가능 단안정 멀티바이브레이터 Voltage range (4.5V to 5.5V), average drive strength (8mA), average propagation delay (12ns)

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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1개 모두 보기
유형 직함 날짜
* Data sheet CD54HC221, CD74HC221, CD74HCT221 datasheet (Rev. F) 2003/10/16

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)

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