74LS116 belongs to the 74XXYY IC series. The 74LS116 IC has a wide range of working voltage, a wide range of working conditions, and directly interfaces with CMOS, NMOS, and TTL. The output of the IC always comes in TTL which makes it easy to work with other TTL devices and microcontrollers. The IC offers a wide array of features such as variable operating voltages & thermal protection.
What is a D-Type Latching Circuit?
A latch is a device that can be used to store one bit of information. The D latch is used to capture, or ‘latch’ the logic level which is present on the Data line when the clock input is high. If the data on the D line changes state while the clock pulse is high, then the output, Q, follows the input, D. When the CLK input falls to logic 0, the last state of the D input is trapped and held in the latch.
74LS116 Key features & Specifications
- Technology Family: LS
- VCC (Min): 4.75V
- VCC (Max): 5.25V
- Bits (#): 4
- Voltage (Nom): 5V
- Frequency at operating voltage (Max): 35MHz
- Propagation delay (Max): 40ns
- IOL (Max): 16mA
- IOH (Max): -0.8mA
- Operating temperature range (C): 0 to 70
74LS116 Pinout
| Pin Name | Pin No. | Description |
|---|---|---|
| 1CLR’ | 1 | Active Low Clear pin 1 |
| 1G1′ | 2 | Active Low Input 1G1 |
| 1G2′ | 3 | Active Low Input 1G2 |
| 1D1 | 4 | Input Pin 1D1 |
| 1Q1 | 5 | Output Pin 1Q1 |
| 1D2 | 6 | Input Pin 1D2 |
| 1Q2 | 7 | Output Pin 1Q2 |
| 1D3 | 8 | Input Pin 1D3 |
| 1Q3 | 9 | Output Pin 1Q3 |
| 1D4 | 10 | Input Pin 1D4 |
| 1Q4 | 11 | Output Pin 1Q4 |
| GND | 12 | Ground Pin |
| 2CLR’ | 13 | Active Low Clear pin 1 |
| 2G1′ | 14 | Active Low Input 2G1 |
| 2G2′ | 15 | Active Low Input 2G2 |
| 2D1 | 16 | Input Pin 2D1 |
| 2Q1 | 17 | Output Pin 2Q1 |
| 2D2 | 18 | Input Pin 2D2 |
| 2Q2 | 19 | Output Pin 2Q2 |
| 2D3 | 20 | Input Pin 2D3 |
| 2Q3 | 21 | Output Pin 2Q3 |
| 2D4 | 22 | Input Pin 2D4 |
| 2Q4 | 23 | Output Pin 2Q4 |
| Vcc | 24 | Chip Supply Voltage |
Applications
The 74LS116 IC has a number applications, a few are listed below:
- It is usually used in devices such as displays for digital watches, LCD displays, etc.
74LS116 Datasheet
You can download the 74LS116 Dual 4-Bit Latch IC With Clear Datasheet from the link given below:
See Also: 74LS02 Quad Two Input NOR Gate| 7407 Hex Buffer IC | 74LS31 Hex Delay Element
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