IC Phoenix logo

Home ›  U  › U26 > UPD71054L

UPD71054L from NEC

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

UPD71054L

Manufacturer: NEC

Programmable timer/counter

Partnumber Manufacturer Quantity Availability
UPD71054L NEC 5120 In Stock

Description and Introduction

Programmable timer/counter The UPD71054L is a programmable interval timer (PIT) manufactured by NEC. Below are the factual specifications, descriptions, and features of the part:  

### **Manufacturer:** NEC (Nippon Electric Company)  
### **Part Number:** UPD71054L  

### **Description:**  
The UPD71054L is a CMOS-based programmable interval timer (PIT) designed for timing and event counting applications in microprocessor-based systems. It is functionally equivalent to the Intel 8254 but operates at lower power due to its CMOS construction.  

### **Key Features:**  
- **Three Independent 16-Bit Counters:** Each counter can operate in different modes.  
- **Programmable Counting Modes:** Supports six different operating modes, including interrupt generation, rate generation, and square wave generation.  
- **CMOS Technology:** Low power consumption compared to NMOS counterparts.  
- **Compatibility:** Fully compatible with the Intel 8254 PIT.  
- **Clock Frequency:** Supports input clock frequencies up to **8 MHz**.  
- **Operating Voltage:** Typically **5V DC**.  
- **Package Type:** Available in a **24-pin DIP (Dual In-line Package)**.  
- **Applications:** Used in real-time clock generation, event counting, frequency measurement, and waveform generation.  

### **Functional Modes:**  
1. **Mode 0:** Interrupt on Terminal Count  
2. **Mode 1:** Programmable One-Shot  
3. **Mode 2:** Rate Generator  
4. **Mode 3:** Square Wave Generator  
5. **Mode 4:** Software-Triggered Strobe  
6. **Mode 5:** Hardware-Triggered Strobe  

This information is based solely on the technical specifications provided by NEC for the UPD71054L. No additional guidance or recommendations are included.

Application Scenarios & Design Considerations

Programmable timer/counter

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips