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UM91270A from UMC

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UM91270A

Manufacturer: UMC

20 MEMORY TONE/PULSE DIALER

Partnumber Manufacturer Quantity Availability
UM91270A UMC 865 In Stock

Description and Introduction

20 MEMORY TONE/PULSE DIALER The part UM91270A is manufactured by UMC (United Microelectronics Corporation). Below are the specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** UMC (United Microelectronics Corporation)  
- **Part Number:** UM91270A  
- **Technology:** CMOS  
- **Function:** DTMF (Dual-Tone Multi-Frequency) Generator/Receiver  
- **Operating Voltage:** Typically 5V (exact range may vary)  
- **Package Type:** Likely DIP (Dual In-line Package) or SOP (Small Outline Package)  
- **Frequency Generation:** Supports standard DTMF tones (0-9, *, #, A-D)  
- **Interface:** Microprocessor-compatible  

### **Descriptions:**  
- The UM91270A is a DTMF generator/receiver IC designed for telecommunication applications.  
- It is used in devices such as telephones, answering machines, and remote control systems.  
- The chip integrates both tone generation and detection functions.  

### **Features:**  
- **DTMF Generation:** Produces accurate dual-tone frequencies for keypad inputs.  
- **DTMF Decoding:** Detects and decodes incoming DTMF signals.  
- **Low Power Consumption:** Optimized for energy efficiency.  
- **Microprocessor Interface:** Can be controlled via a microcontroller.  
- **Stable Performance:** Designed for reliable operation in communication systems.  

For exact electrical characteristics, pin configurations, and application notes, refer to the official UMC datasheet.

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