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X5325 from INTERSIL

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X5325

Manufacturer: INTERSIL, XICOR

CPU supervisor with selectable watchdog timer, adjustable low voltage reset, active high reset

Partnumber Manufacturer Quantity Availability
X5325 INTERSIL, XICOR 54 In Stock

Description and Introduction

CPU supervisor with selectable watchdog timer, adjustable low voltage reset, active high reset Part X5325 is a digital potentiometer manufactured by INTERSIL (now part of Renesas Electronics). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Type:** Digital Potentiometer (Non-Volatile Memory)  
- **Resolution:** 256 Taps  
- **Interface:** I²C (2-Wire Serial Interface)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Resistance Options:** 10kΩ, 50kΩ, 100kΩ  
- **Operating Temperature Range:** -40°C to +85°C  
- **End-to-End Resistance Tolerance:** ±20%  
- **Low Power Consumption:** 3μA (Standby Current)  
- **Non-Volatile Memory:** Stores wiper position during power-off  
- **Package Options:** 8-Lead SOIC, 8-Lead MSOP  

### **Descriptions:**
- The X5325 is a digitally controlled potentiometer (XDCP™) that emulates mechanical potentiometers.  
- It features non-volatile memory, allowing it to retain the wiper position even when power is removed.  
- The device is controlled via an I²C interface, enabling easy integration into digital systems.  
- It is designed for applications requiring programmable resistance adjustments, such as volume control, calibration, and system tuning.  

### **Features:**
- **Non-Volatile Wiper Storage:** Saves settings during power cycles.  
- **I²C Serial Interface:** Supports standard (100kHz) and fast (400kHz) modes.  
- **Wide Voltage Operation:** Compatible with 3V and 5V systems.  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Increment/Decrement Commands:** Allows easy adjustment of resistance.  
- **Small Package Options:** Suitable for space-constrained designs.  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

CPU supervisor with selectable watchdog timer, adjustable low voltage reset, active high reset

Alternative Part Number

  • ISL21080 --: Intersil voltage supervisor/regulator family with similar function and package options; same vendor lineage makes it a straightforward functional substitute.
  • MAX809 --: Widely available 3-pin microprocessor reset/supervisor IC covering similar supply monitoring functions, commonly used as a cross for X5325-type supervisors.
  • TL7705A --: Classic single-supply voltage supervisor with adjustable reset delay, a common second-source alternative when the original X5325 is unavailable.
  • ISL21090 --: Renesas (which absorbed Xicor/Intersil) offers precision voltage references in the ISL21090 series that can replace X5325-type reference functions with better accuracy.
  • ADR4525 --: The ADR4525 is a high-precision 2.5V voltage reference with low noise and low drift, suitable as a functional replacement for X5325 reference applications.
  • LM4040 --: The LM4040 is a widely available precision shunt voltage reference in a 2.5V option, providing a cost-effective alternative for X5325 reference circuits.

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