Overview
The SN74HC112DR is a dual J-K negative-edge-triggered flip-flop integrated circuit produced by Texas Instruments. This device contains two independent flip-flops, each with preset (PRE) and clear (CLR) inputs. The flip-flops are triggered on the negative-going edge of the clock (CLK) pulse, allowing data at the J and K inputs to be transferred to the outputs under specific timing conditions. This component is versatile and can function as toggle flip-flops by tying the J and K inputs high.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOIC (D), 16 pins |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage (VCC) | 2V to 6V |
| Maximum Clock Frequency | Up to 29 MHz at 6V |
| Output Drive | ±4mA at 5V |
| Input Current | 1µA max |
| Power Consumption (ICC) | 40µA max |
| Propagation Delay (tpd) | Typical 13ns at 5V |
| Thermal Resistance (RθJA) | 117.2°C/W for SOIC package |
Key Features
- Wide operating voltage range of 2V to 6V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption, 40µA max ICC
- Typical propagation delay of 13ns
- ±4mA output drive at 5V
- Low input current of 1µA max
Applications
- Servers
- LED displays
- Network switches
- Telecom infrastructure
- Motor drivers
- I/O expanders
Q & A
- What is the SN74HC112DR? The SN74HC112DR is a dual J-K negative-edge-triggered flip-flop integrated circuit.
- What is the operating temperature range of the SN74HC112DR? The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the SN74HC112DR? The supply voltage range is 2V to 6V.
- How many flip-flops are included in the SN74HC112DR? The device contains two independent J-K flip-flops.
- What is the maximum clock frequency of the SN74HC112DR? The maximum clock frequency is up to 29 MHz at 6V.
- What is the typical propagation delay of the SN74HC112DR? The typical propagation delay is 13ns at 5V.
- Can the SN74HC112DR function as a toggle flip-flop? Yes, it can function as a toggle flip-flop by tying the J and K inputs high.
- What is the output drive capability of the SN74HC112DR? The output can drive up to ±4mA at 5V.
- What is the power consumption of the SN74HC112DR? The maximum power consumption is 40µA.
- What are some common applications of the SN74HC112DR? Common applications include servers, LED displays, network switches, telecom infrastructure, motor drivers, and I/O expanders.
