Overview
The SN74HC163DBR, produced by Texas Instruments, is a 4-bit synchronous binary counter. This component is part of the HC163 series, known for its high-speed counting capabilities and synchronous operation. The SN74HC163DBR features an internal carry look-ahead circuit, which is essential for applications requiring fast and accurate counting. It operates within a wide voltage range of 2 V to 6 V, making it versatile for various electronic designs.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SSOP (DB) |
| Pins | 16 |
| Operating Temperature Range (°C) | -40 to 85 |
| Supply Voltage (V) | 2 to 6 |
| Maximum Input Current | 1 µA |
| Maximum Power Consumption | 80 µA |
| Typical Propagation Delay (tpd) | 14 ns |
| Output Drive at 5 V | ±4 mA |
| Maximum Clock Frequency | Up to 36 MHz at 6 V |
Key Features
- Wide Operating Voltage Range of 2 V to 6 V
- Outputs Can Drive Up To 10 LSTTL Loads
- Low Power Consumption, 80-µA Max I
- Typical tpd = 14 ns
- ±4-mA Output Drive at 5 V
- Low Input Current of 1 µA Max
- Internal Look-Ahead for Fast Counting
- Carry Output for n-Bit Cascading
- Synchronous Counting
- Synchronously Programmable
Applications
The SN74HC163DBR is suitable for high-speed counting designs, including but not limited to:
- Digital counters and timers
- Frequency dividers
- Sequential logic circuits
- Microprocessor and microcontroller systems
- Automotive and industrial control systems
Q & A
- What is the operating voltage range of the SN74HC163DBR?
The operating voltage range is from 2 V to 6 V. - How many LSTTL loads can the outputs drive?
The outputs can drive up to 10 LSTTL loads. - What is the typical propagation delay of the SN74HC163DBR?
The typical propagation delay is 14 ns. - Can the SN74HC163DBR be preset to any number?
Yes, it can be preset to any number between 0 and 9 or 15. - How does the clear function work on the SN74HC163DBR?
A low level at the clear (CLR) input sets all four flip-flop outputs low after the next low-to-high transition of CLK. - What is the purpose of the carry look-ahead circuitry?
The carry look-ahead circuitry allows for cascading counters for n-bit synchronous applications without additional gating. - What is the maximum clock frequency at 6 V?
The maximum clock frequency at 6 V is up to 36 MHz. - What is the maximum power consumption of the SN74HC163DBR?
The maximum power consumption is 80 µA. - What is the operating temperature range of the SN74HC163DBR?
The operating temperature range is from -40°C to 85°C. - Can the SN74HC163DBR be used in high-speed counting applications?
Yes, it is designed for high-speed counting applications.
