SN74HCS74QPWRQ1

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SN74HCS74QPWRQ1

IC FF D-TYPE DUAL 1BIT 14TSSOP

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사양

Supplier Texas Instruments
Package Tape & Reel (TR),Cut Tape (CT)
Series Automotive, AEC-Q100, 74HCS
ProductStatus Active
Function Set(Preset) and Reset
Type D-Type
OutputType Complementary
NumberofElements 2
NumberofBitsperElement 1
ClockFrequency 105 MHz
MaxPropagationDelay@VMaxCL 15ns @ 6V, 50pF
TriggerType Positive Edge
Current-OutputHighLow 7.8mA, 7.8mA
Voltage-Supply 2V ~ 6V
Current-Quiescent(Iq) 2 µA
InputCapacitance 5 pF
OperatingTemperature -40°C ~ 125°C (TA)
MountingType Surface Mount
SupplierDevicePackage 14-TSSOP

개요

Description

SN74HCS74QPWRQ1 is a TI dual D-type, positive-edge-triggered flip-flop with asynchronous preset (PR) and clear (CLR) inputs. It contains two independent flip-flops; each stores one bit on the rising edge of its clock input. The outputs are Q and not-Q for each flip-flop. Asynchronous PR and CLR override normal operation when asserted.
Key points:
- Voltage: operates from ~2 V to 6 V (typical 5 V).
- Package/code: SN74HCS74 with the QPWRQ1 suffix indicates a specific TI packaging/temperature option.
- Pins/features: D1/D2, CLK1/CLK2, PR1/PR2, CLR1/CLR2, Q1/Q2 and /Q1 /Q2 (two flip-flops per device).
- Applications: digital storage elements, registers, counters, data buffering, and simple synchronous circuits.
Operational notes:
- Keep PR and CLR inactive (high) for normal operation.
- Drive D with the data and apply clock edges to capture it.
- Can cascade flip-flops for wider registers.
For exact pinout, timing, and electrical specs, consult the SN74HCS74QPWRQ1 datasheet.

Features

SN74HCS74QPWRQ1 features:
- Two independent D-type flip-flops
- Positive-edge-triggered operation
- Asynchronous preset (PRE) and clear (CLR) inputs for each flip-flop (active-low)
- Q and Q̄ outputs for each flip-flop
- Separate D and CLK inputs per flip-flop
- High-speed CMOS with low static power
- Suitable for 5V logic (wide Vcc range per datasheet)
- Available in device/package variants (QPWRQ1) for standard designs
Note: PRE/CLR are asynchronous and may override the clock; simultaneous assertion of PRE and CLR can produce invalid state.

Package

A PowerPAD (PWRQ) 14‑pin exposed-pad package.

Pinout

Pin count: 14 pins (PowerPAD variant SN74HCS74QPWRQ1).
Function: Dual D-type positive-edge-triggered flip-flops with asynchronous active-low PRE and CLR. Each flip-flop has D, CLK, PRE, CLR, Q, and Q′ outputs (two independent sections).

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: A US-based multinational semiconductor company that designs and manufactures analog and digital integrated circuits and embedded processors; one of the world's leading semiconductor producers, headquartered in Dallas, Texas.

Application

SN74HCS74QPWRQ1 is a dual positive-edge-triggered D-type flip-flop with asynchronous preset and clear. Typical applications include:
- Data storage/transfer between clock domains (sequential logic)
- Registers, latches, and small memory blocks
- Frequency division and timing control
- State machines and simple counters
- Pulse synchronization and edge-triggered control in digital interfaces

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