93LC46AX-I/SN

Memory IC Overview

The Microchip Technology 93LC46AX-I/SN is a 1Kbit serial Electrically Erasable PROM (EEPROM) utilizing low-power CMOS technology. It features a fixed 128 x 8-bit organization and operates within a voltage range of 2.5V to 5.5V. The device supports a maximum clock frequency of 2 MHz via an industry-standard 3-Wire Microwire interface. It includes self-timed erase/write cycles, power-on/off data protection, and a Ready/Busy status signal. The component is housed in an 8-lead SOIC package and functions reliably across an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Low-Power CMOS Technology
• Self-Timed Erase/Write Cycles with Automatic Erase All Before Write All
• Power-On/Off Data Protection Circuitry
• Industry Standard 3-Wire Serial I/O with Device Status Signal

Memory IC Applications

• Computer and computer peripherals
• Industrial systems
• Communication and networking equipment
• Consumer electronics
• Automotive applications

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature grade (-40°C to +85°C) and 'SN' denotes the SOIC package. Confirm RoHS compliance status through official Microchip documentation or distributor specifications prior to procurement. Ensure the ordering part number matches the required 128 x 8 organization, as other variants in the series may offer different word sizes or voltage ranges.

Memory IC Selection Notes

Select this component for nonvolatile memory applications requiring low power consumption and simple serial interfacing. The fixed 128 x 8 organization suits systems needing 8-bit data words without external configuration logic. Ensure the operating voltage falls within the 2.5V to 5.5V range and that the system environment remains within the specified industrial temperature limits for reliable operation.

Memory IC Part Context

This device belongs to the 93XX46A/B/C family of 1Kbit Microwire-compatible serial EEPROMs from Microchip Technology. The 'A' designation indicates a dedicated 8-bit word size, distinguishing it from 'B' (16-bit) and 'C' (selectable) variants. The series utilizes advanced CMOS technology to provide high endurance and long data retention for various embedded storage needs.

Memory IC Replacement Considerations

Compatible substitutes include the 93LC46BT-I/SN and 93LC46BX-I/SN, which share similar 1Kbit capacity and Microwire interfaces. Verify that replacement parts maintain the same 128 x 8 organization and voltage specifications to ensure functional equivalence in existing designs.

Memory IC FAQ

Does the 93LC46AX-I/SN have an ORG pin?

No, the 'A' version devices like the 93LC46AX-I/SN do not have an ORG pin; they are dedicated to 8-bit communication.

How is the Ready/Busy status indicated during programming?

The DO pin provides the status: a logical '0' indicates the device is busy, while a logical '1' indicates it is ready.