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Product Detailed Parameters
- Description：IC FF JK TYPE DUAL 1BIT 16DIP
- Series：74HC
- Mfr：Harris Corporation
- Package：Tube
- 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：30ns @ 6V, 50pF
- Trigger Type：Negative Edge
- Current - Output High, Low：5.2mA, 5.2mA
- Voltage - Supply：2V ~ 6V
- Current - Quiescent (Iq)：4 µA
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Supplier Device Package：16-PDIP
- Package / Case：16-DIP (0.300", 7.62mm)
- Input Capacitance：10 pF
- Grade：-
- Qualification：-
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Overview
The CD74HC112E is a dual JK flip-flop manufactured by Harris Corporation, belonging to the HC/UH CMOS logic series. It features two independent negative-edge triggered JK flip-flops with asynchronous set and reset inputs. The device utilizes a 14-pin Plastic Dual In-Line Package (PDIP). Electrical specifications include a supply voltage range of 2V to 6V, an operating temperature range from -55°C to 85°C, and a maximum low-level output current of 0.004 A. The component has a load capacitance rating of 50 pF.
Feature Summary
- Dual JK flip-flop configuration with negative-edge triggering
- Asynchronous set and reset functionality for immediate state control
- CMOS technology compatible with low power Schottky TTL levels
Applications
- Digital counting circuits
- Frequency division networks
- Data storage registers
Procurement Notes
Verify manufacturer origin as Harris Corporation or successor entities like Intersil/Renesas due to corporate acquisitions. Confirm package integrity for PDIP-14 form factor. Check RoHS compliance status as documentation indicates non-compliance in some records. Validate pinout compatibility against legacy schematics before integration into new designs.
Selection Notes
Select this component when dual independent JK flip-flops are required within a single package. Ensure the design operates within the specified 2V to 6V supply range. Consider the -55°C to 85°C temperature limits for environmental suitability. Verify that asynchronous set/reset requirements align with system timing constraints.
Part Context
This part belongs to the standard 74HC logic family, widely used in general-purpose digital electronics. It serves as a fundamental building block for sequential logic systems. The HC designation indicates high-speed CMOS performance while maintaining compatibility with older TTL interfaces.
Replacement Considerations
Cross-reference with 74HC112 variants from Nexperia or Texas Instruments. Verify pin compatibility and electrical characteristics match original Harris specifications.
