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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 4BIT 16TSSOP
- Series：74HC
- Mfr：Texas Instruments
- Package：Tube
- Function：Master Reset
- Type：D-Type
- Output Type：Tri-State, Non-Inverted
- Number of Elements：1
- Number of Bits per Element：4
- Clock Frequency：60 MHz
- Max Propagation Delay @ V, Max CL：34ns @ 6V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：7.8mA, 7.8mA
- Voltage - Supply：2V ~ 6V
- Current - Quiescent (Iq)：8 µA
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：16-TSSOP
- Package / Case：16-TSSOP (0.173", 4.40mm Width)
- Input Capacitance：10 pF
- Grade：-
- Qualification：-
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Overview
The CD74HC173PW is a quad D-type flip-flop from the Texas Instruments HC logic family, housed in a 16-pin TSSOP surface-mount package. It operates within a supply voltage range of 2 V to 6 V and supports a minimum operating temperature of -55°C and a maximum of +125°C. The device features single-ended inputs and non-inverting polarity with four internal circuits. Key electrical specifications include a propagation delay of 200 ns, a high-level output current of -7.8 mA, and a low-level output current of 7.8 mA.
Feature Summary
- Contains four independent edge-triggered D-type flip-flops for parallel data storage
- Provides tri-state outputs controlled by dual enable signals for bus driving applications
- Includes an asynchronous master reset input that clears all flip-flops immediately
Applications
- High-speed disk and tape controllers
- Communication buffer systems
- Parallel-to-serial conversion circuits
Procurement Notes
Verify the specific suffix 'PW' confirms the TSSOP-16 package variant during procurement. Confirm RoHS compliance status through official manufacturer documentation as requirements vary by region. Ensure the active status is validated against the latest Texas Instruments lifecycle notices to avoid obsolete components.
Selection Notes
Select this component when a compact quad D-type register with tri-state capability is required. The HC series offers compatibility with standard CMOS logic levels across a wide voltage range. Consider the TSSOP-16 package for space-constrained surface-mount designs requiring industrial temperature performance.
Part Context
This part belongs to the CD74HC173 series of 4-bit D-type flip-flops. It is manufactured by Texas Instruments and falls under the HC logic family. The device is designed for high-speed digital applications requiring reliable data latching and bus interface capabilities.
Replacement Considerations
Compatible substitutes include SN74HC173PWR and SN74HC173N. Verify pinout and electrical characteristics match before substitution.
