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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 4BIT 16SOP
- Series：74ALS
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Function：Master Reset
- Type：D-Type
- Output Type：Complementary
- Number of Elements：1
- Number of Bits per Element：4
- Clock Frequency：50 MHz
- Max Propagation Delay @ V, Max CL：17ns @ 5V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：400µA, 8mA
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Iq)：14 mA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：16-SOP
- Package / Case：16-SOIC (0.209", 5.30mm Width)
- Input Capacitance：-
- Grade：-
- Qualification：-
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Overview
The DM74ALS175SJX is a D-type positive-edge triggered flip-flop manufactured by onsemi in the ALS logic series. It features four bits per element within a single circuit, housed in a 16-SOP surface-mount package. The device operates with a supply voltage range of 4.5V to 5.5V and supports a maximum clock frequency of 50 MHz. Propagation delay is specified at 17ns under standard conditions (5V, 50pF load). Static current consumption is 14 mA, with output drive capabilities of 400µA high and 8mA low. It includes a master reset function and functions within an operating temperature range of 0°C to +70°C.
Feature Summary
- Positive-edge triggered D-type configuration for reliable data capture
- Integrated master reset functionality for system initialization
- Complementary outputs providing true signal availability
Applications
- Parallel-to-serial data conversion circuits
- Shift register implementations
- General-purpose digital storage elements
Procurement Notes
This component is officially obsolete and no longer manufactured by onsemi. Procurement requires sourcing from authorized distributors or third-party suppliers holding remaining stock. Verify RoHS compliance status and check for potential counterfeit risks when acquiring surplus inventory. Confirm package integrity and pin compatibility before integration into new designs.
Selection Notes
Select this part only if legacy 74ALS interface compatibility is required. Consider modern alternatives like SN74ALS175 for direct substitution. Evaluate power consumption requirements as ALS logic draws higher static current compared to advanced CMOS families. Ensure design accommodates the specific propagation delay characteristics for timing closure.
Part Context
Part of the DM74ALS family, representing Advanced Low-Power Schottky TTL technology. This series bridges older TTL standards with improved speed and lower power consumption. The DM74ALS175SJX specifically addresses applications needing edge-triggered storage in compact surface-mount formats.
Replacement Considerations
SN74ALS175NSR (Texas Instruments) is listed as a direct substitute. SN74ALS175D (Rochester Electronics) is available as a similar option. Verify pinout and electrical specifications match before replacement.
