SN74HC193

활성

4비트 동기식 업/다운 카운터(클리어 지원 듀얼 클록)

제품 상세 정보

Function Counter Bits (#) 4 Technology family HC Supply voltage (min) (V) 2 Supply voltage (max) (V) 6 Input type Standard CMOS Output type Push-Pull Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -40 to 85 Rating Catalog
Function Counter Bits (#) 4 Technology family HC Supply voltage (min) (V) 2 Supply voltage (max) (V) 6 Input type Standard CMOS Output type Push-Pull Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -40 to 85 Rating Catalog
PDIP (N) 16 181.42 mm² 19.3 x 9.4 SOIC (D) 16 59.4 mm² 9.9 x 6 SOP (NS) 16 79.56 mm² 10.2 x 7.8 TSSOP (PW) 16 32 mm² 5 x 6.4
  • Wide Operating Voltage Range of 2 V to 6 V
  • Outputs Can Drive Up To 10 LSTTL Loads
  • Low Power Consumption, 80-µA Max ICC
  • Typical tpd = 20 ns
  • ±4-mA Output Drive at 5 V
  • Low Input Current of 1 µA Max
  • Look-Ahead Circuitry Enhances Cascaded Counters
  • Fully Synchronous in Count Modes
  • Parallel Asynchronous Load for Modulo-N Count Lengths
  • Asynchronous Clear

  • Wide Operating Voltage Range of 2 V to 6 V
  • Outputs Can Drive Up To 10 LSTTL Loads
  • Low Power Consumption, 80-µA Max ICC
  • Typical tpd = 20 ns
  • ±4-mA Output Drive at 5 V
  • Low Input Current of 1 µA Max
  • Look-Ahead Circuitry Enhances Cascaded Counters
  • Fully Synchronous in Count Modes
  • Parallel Asynchronous Load for Modulo-N Count Lengths
  • Asynchronous Clear

The ’HC193 devices are 4-bit synchronous, reversible, up/down binary counters. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincidentally with each other when so instructed by the steering logic. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple-clock) counters.

The outputs of the four flip-flops are triggered on a low-to-high-level transition of either count (clock) input (UP or DOWN). The direction of counting is determined by which count input is pulsed while the other count input is high.

All four counters are fully programmable; that is, each output may be preset to either level by placing a low on the load (LOAD)\ input and entering the desired data at the data inputs. The output changes to agree with the data inputs independently of the count pulses. This feature allows the counters to be used as modulo-N dividers simply by modifying the count length with the preset inputs.

A clear (CLR) input has been provided that forces all outputs to the low level when a high level is applied. The clear function is independent of the count and LOAD\ inputs.

These counters were designed to be cascaded without the need for external circuitry. The borrow (BO)\ output produces a low-level pulse while the count is zero (all outputs low) and DOWN is low. Similarly, the carry (CO)\ output produces a low-level pulse while the count is maximum (9 or 15), and UP is low. The counters then can be cascaded easily by feeding BO\ and CO\ to DOWN and UP, respectively, of the succeeding counter.

The ’HC193 devices are 4-bit synchronous, reversible, up/down binary counters. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincidentally with each other when so instructed by the steering logic. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple-clock) counters.

The outputs of the four flip-flops are triggered on a low-to-high-level transition of either count (clock) input (UP or DOWN). The direction of counting is determined by which count input is pulsed while the other count input is high.

All four counters are fully programmable; that is, each output may be preset to either level by placing a low on the load (LOAD)\ input and entering the desired data at the data inputs. The output changes to agree with the data inputs independently of the count pulses. This feature allows the counters to be used as modulo-N dividers simply by modifying the count length with the preset inputs.

A clear (CLR) input has been provided that forces all outputs to the low level when a high level is applied. The clear function is independent of the count and LOAD\ inputs.

These counters were designed to be cascaded without the need for external circuitry. The borrow (BO)\ output produces a low-level pulse while the count is zero (all outputs low) and DOWN is low. Similarly, the carry (CO)\ output produces a low-level pulse while the count is maximum (9 or 15), and UP is low. The counters then can be cascaded easily by feeding BO\ and CO\ to DOWN and UP, respectively, of the succeeding counter.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
CD74HC93 활성 고속 CMOS 로직 4비트 이진 리플 카운터 Voltage range (2V to 6V), average drive strength (8mA), average propagation delay (20ns)

기술 자료

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15개 모두 보기
유형 직함 날짜
* Data sheet SN54HC193, SN74HC193 datasheet (Rev. D) 2003/10/02
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 2021/07/26
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
User guide Signal Switch Data Book (Rev. A) 2003/11/14
Application note HCMOS Design Considerations (Rev. A) 2002/09/09
Application note TI IBIS File Creation, Validation, and Distribution Processes 2002/08/29
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 1997/06/01
Application note Designing With Logic (Rev. C) 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 SN54/74HCT CMOS Logic Family Applications and Restrictions 1996/05/01
Application note Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc 1996/04/01

설계 및 개발

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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
패키지 CAD 기호, 풋프린트 및 3D 모델
PDIP (N) 16 Ultra Librarian
SOIC (D) 16 Ultra Librarian
SOP (NS) 16 Ultra Librarian
TSSOP (PW) 16 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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