S-93A66BD0A-J8T2U3

Overview

The S-93A66BD0A-J8T2U3 is a 4 K-bit (256-word × 16-bit) automotive-grade 3-wire serial E2PROM from ABLIC. It operates within a voltage range of 2.5 V to 5.5 V and supports a maximum clock frequency of 2.0 MHz. The device features sequential read capabilities, CMOS Schmitt inputs, and write protection during low power supply conditions. It is qualified under AEC-Q100 for operation temperature grade 1 and offers data retention of up to 100 years at +25°C. The component is housed in an 8-Pin SOP (JEDEC) package.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for high-temperature reliability.
• Integrated write protect function that activates automatically during low power supply voltage events.
• Built-in clock pulse monitoring circuit designed to prevent erroneous write operations caused by noise or double counting.
• Supports sequential read mode where addresses are automatically incremented in 16-bit blocks.

Applications

• Automotive control units requiring high-temperature operation up to 125°C.
• Medical equipment applications necessitating verified reliability.
• Systems utilizing Microwire bus communication protocols.
• Data storage for configuration parameters in harsh environments.

Procurement Notes

Verify the specific ordering suffix J8T2U3 corresponds to the 8-Pin SOP (JEDEC) tape packing format as defined in the product name structure. Confirm that the application environment remains within the recommended operating conditions of 2.5 V to 5.5 V supply voltage and -40°C to +125°C ambient temperature. Ensure compliance with AEC-Q100 requirements if used in automotive contexts by contacting sales representatives for detailed reliability specifications.

Selection Notes

Select this model for designs requiring 4 K-bit non-volatile memory with 16-bit word organization. The S-93A66B variant is distinct from the S-93A46B (1 K-bit) and S-93A76B (8 K-bit) within the same family. Choose the J8T2U3 suffix specifically when the 8-Pin SOP (JEDEC) package is required for the PCB layout. Consider the 2.0 MHz maximum clock speed and 4.0 ms maximum write time when designing system timing constraints.

Part Context

This component belongs to the S-93AxxB series of automotive 125°C operation 3-wire serial E2PROMs manufactured by ABLIC Inc. The series includes capacities ranging from 1 K-bit to 16 K-bit, sharing common interface protocols and electrical characteristics. The S-93A66B specifically provides 4 K-bit capacity organized as 256 words of 16 bits each. All members of this series support Microwire bus communication and feature similar write protection mechanisms.

Replacement Considerations

Direct substitutes within the same package include other S-93A66B variants with different suffixes such as T8T2U3 (TSSOP), K8T2U3 (TMSOP-8), or A8T1U3 (HSNT-8). Cross-capacity replacements like S-93A46BD0A-J8T2U3 or S-93A76BD0A-J8T2U3 share the same pinout but differ in memory size. Verify compatibility with existing firmware addressing schemes when substituting.