CPU Supervisor with 32Kbit SPI EEPROM – Intersil X5328, X5329 Datasheet

Category: Electronics, Intersil Corporation, Other Semiconductors

CPU Supervisor with 32Kbit SPI EEPROM – Overview

The Intersil X5328 and X5329 devices serve as CPU supervisors integrated with a 32Kbit SPI EEPROM, offering a multifunctional solution that combines Power-on Reset Control, Supply Voltage Supervision, and Block Lock Protect Serial EEPROM Memory in a single package. Highlighting the benefits of reduced system costs, minimized board space, and enhanced reliability, these devices are particularly crucial in preventing code execution in microprocessors until the power supply and oscillator are stable, thanks to their Power-on Reset feature.

Key Features

Low Vcc Detection: Maintains a RESET/RESET state when Vcc falls below the defined threshold, offering five preset and customizable voltage thresholds.
Low Power Consumption: Ensures extended battery life with less than 1µA standby and less than 400µA active current during read operations.
EEPROM Characteristics: Includes 32Kbits of EEPROM with built-in inadvertent write protection and options to protect variable portions of the memory array.
SPI Interface & Programming: Supports a 2MHz SPI interface with modes (0,0 & 1,1), along with a 32-byte page write mode for efficient programming.
Wide Operating Voltage Range: Functions across a 2.7V to 5.5V range, ensuring compatibility with various power supplies.
Diverse Packaging Options: Available in 14 Ld TSSOP, 8 Ld SOIC, and 8 Ld PDIP, with lead(Pb)-free options adhering to RoHS compliance.

Ordering Information & Availability

The datasheet provides detailed ordering information, including part numbers, preferred replacements for obsolete versions, VTRIP ranges, operating temperatures, and package types to ensure selection of the most appropriate variant for different applications. Notably, the products include Intersil’s commitment to Pb-free plus annealing procedures, which aligns with environmental standards and supports both SnPb and Pb-free soldering.

Caution & Handling

Handling procedures are emphasized, given the sensitivity of these devices to electrostatic discharge. The suggestion is to follow proper integrated circuit handling protocols to maintain device integrity.

Important Notice:

It should be noted that certain product variants within the X5328 and X5329 series have been discontinued and recommended replacements are provided within the datasheet. The document also includes a block diagram to aid in understanding the internal structure and connections, including components such as Protect Logic, Data Registers, Status Register, and Command Decode & Control Logic. This diagram and other detailed specifications are critical for engineers and designers who are integrating these supervisors into their systems.