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Product Detailed Parameters
- Description：IC FF JK TYPE DUAL 1BIT 16DIP
- Series：74S
- Mfr：onsemi
- Package：Bag
- Function：Set(Preset) and Reset
- Type：JK Type
- Output Type：Complementary
- Number of Elements：2
- Number of Bits per Element：1
- Clock Frequency：60 MHz
- Max Propagation Delay @ V, Max CL：-
- Trigger Type：Negative Edge
- Current - Output High, Low：1mA, 20mA
- Voltage - Supply：4.75V ~ 5.25V
- Current - Quiescent (Iq)：-
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Through Hole
- Supplier Device Package：16-PDIP
- Package / Case：16-DIP (0.300", 7.62mm)
- Input Capacitance：-
- Grade：-
- Qualification：-
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Overview
The DM74S112N is a dual JK flip-flop integrated circuit manufactured by onsemi, belonging to the 74S (Schottky) logic series. It features two independent flip-flops with complementary outputs and negative edge triggering. The device operates within a supply voltage range of 4.75V to 5.25V and supports an operating temperature range of 0°C to 70°C. It utilizes a 16-PDIP package for through-hole mounting. Electrical characteristics include a high-level output current of 1mA and a low-level output current of 20mA.
Feature Summary
- Dual configuration containing two independent JK flip-flops with complementary outputs
- Negative edge triggering mechanism for precise timing control
- Schottky-clamped construction ensuring high-speed switching performance
Applications
- Digital counting circuits
- Shift register implementations
- Sequential logic control systems
Procurement Notes
Verify component authenticity due to discontinued status. Confirm package integrity and pin alignment before integration. Review datasheet specifications for electrical limits. Ensure compatibility with existing system voltage levels. Check for direct replacement availability from authorized distributors.
Selection Notes
Select this component for applications requiring Schottky speed in a dual JK configuration. Consider the 16-pin DIP form factor for prototyping or legacy board designs. Evaluate thermal requirements against the specified commercial temperature range. Compare propagation delays with system clock speeds to ensure timing margins are met.
Part Context
This part belongs to the standard 74S logic family, known for improved speed over standard TTL variants. The DM74S112N specifically addresses needs for dual flip-flop functionality in digital design. It represents a historical component widely used in mid-era digital electronics before CMOS dominance.
Replacement Considerations
Direct substitute: SN74S112N (Texas Instruments). Verify pinout compatibility and electrical parameter equivalence before substitution.
