Overview
The MC74HC112ADR2G is a Dual J-K Flip-Flop with Set and Reset, manufactured by onsemi. This device is part of the high-performance silicon-gate CMOS family and is known for its compatibility with various logic families. It features two independent J-K flip-flops, each with individual Set, Reset, and Clock inputs. The device is negative-edge clocked and has active-low asynchronous Set and Reset inputs. The MC74HC112ADR2G is identical in pinout to the LS112 and similar in function to the HC76 but with a different pinout.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | –0.5 to +6.5 | V |
| DC Input Voltage (VIN) | –0.5 to VCC + 0.5 | V |
| DC Output Voltage (VOUT) | –0.5 to VCC + 0.5 | V |
| Operating Voltage Range | 2.0 to 6.0 | V |
| Maximum Input Current (IIN) | ±20 mA | mA |
| Maximum Output Current (IOUT) | ±25 mA | mA |
| Maximum Quiescent Supply Current (ICC) | 4 to 80 µA | µA |
| Storage Temperature (TSTG) | –65 to +150 °C | °C |
| Lead Temperature (TL) | 260 °C | °C |
| Junction Temperature (TJ) | –150 °C | °C |
| Thermal Resistance (JA) | 126 to 159 °C/W | °C/W |
| Power Dissipation in Still Air at 25°C (PD) | 787 to 995 mW | mW |
Key Features
- Output Drive Capability: 10 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Low Input Current: 1.0 µA
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance with the Requirements Defined by JEDEC Standard No. 7A
- Similar in Function to the LS112 Except When Set and Reset are Low Simultaneously
- Chip Complexity: 100 FETs or 25 Equivalent Gates
- Pb-Free Devices
Applications
The MC74HC112ADR2G is suitable for a variety of digital logic applications, including:
- Counters and Shift Registers
- Sequential Logic Circuits
- Memory Elements
- Timing and Control Circuits
- General Purpose Digital Logic
Q & A
- What is the operating voltage range of the MC74HC112ADR2G?
The operating voltage range is from 2.0 to 6.0 volts.
- What is the maximum clock frequency for the MC74HC112ADR2G?
The maximum clock frequency varies with the supply voltage but can be up to 35 MHz at 6.0 volts.
- How many LSTTL loads can the outputs of the MC74HC112ADR2G drive?
The outputs can drive up to 10 LSTTL loads.
- What is the thermal resistance of the SOIC-16 package?
The thermal resistance (JA) for the SOIC-16 package is 126 °C/W.
- Is the MC74HC112ADR2G Pb-free?
- What are the asynchronous inputs on the MC74HC112ADR2G?
The Set and Reset inputs are asynchronous.
- How many flip-flops are included in the MC74HC112ADR2G?
The device includes two independent J-K flip-flops.
- What is the maximum propagation delay from Clock to Q or Q?
The maximum propagation delay varies with the supply voltage but can be up to 150 ns at 2.0 volts.
- What is the storage temperature range for the MC74HC112ADR2G?
The storage temperature range is from –65 to +150 °C.
- What are the package options available for the MC74HC112ADR2G?
The device is available in SOIC-16, TSSOP-16, and QFN16 packages.
