S-24C32CH-J8T2U3

Memory IC Overview

The S-24C32CH-J8T2U3 is a 32 K-bit (4096 words x 8-bit) automotive-grade 2-wire serial EEPROM designed for operation up to 105°C. It supports read and write voltages from 2.5 V to 5.5 V with an operating frequency of 400 kHz. The device features page writes of 32 bytes, Schmitt trigger noise suppression, and hardware write protection via the WP pin. Endurance reaches 10^6 cycles at 25°C, with data retention up to 100 years. It includes low-voltage detection and AEC-Q100 qualification.

Memory IC Feature Summary

• Automotive-grade reliability with high-temperature operation capability up to 105°C
• Hardware write protect function controlled by the WP pin input state
• Built-in low power supply voltage detection circuit to cancel write operations during voltage drops
• Noise suppression using Schmitt triggers and filters on SCL and SDA input pins

Memory IC Applications

• Automotive control unit memory storage
• Data logging in vehicle electronic systems
• Configuration parameter storage in automotive modules

Memory IC Procurement Notes

Verify the specific package type matches the J8 suffix (SOP) before ordering. Confirm that the application environment stays within the specified -40°C to +105°C temperature range. Ensure the system design accommodates the required pull-up resistors for SDA and SCL lines as the device lacks internal pull-ups for these signals. Contact ABLIC Inc. directly if the component is intended for use in automobile control units or medical equipment, as prior consultation is mandatory.

Memory IC Selection Notes

Select this part when a 32 K-bit capacity is required for automotive applications demanding 105°C operation. Choose this model over standard commercial variants if AEC-Q100 qualification is necessary. Consider the 32-byte page write size for efficiency in data writing tasks. Ensure the system voltage remains between 2.5 V and 5.5 V for both read and write operations. Verify that the 8-pin SOP package fits the PCB layout constraints.

Memory IC Part Context

This component belongs to the S-24C32C/64C H Series, a line of 2-wire serial EEPROMs optimized for automotive environments. The 'H' designation indicates high-temperature operation capabilities. The series shares architectural similarities with the S-24C64C but differs in memory density. It utilizes a standard I2C-compatible interface for communication with master devices.

Memory IC Replacement Considerations

Direct substitutes include other S-24C32C/64C H Series parts with different package suffixes such as TMSOP-8 (K8) or TSSOP (T8). Cross-brand replacements require verification of pin compatibility, voltage ranges, and timing specifications against the official datasheet.

Memory IC FAQ

How is the write protect function enabled?

Write protection is enabled by connecting the WP pin to VCC. When connected to GND or left open, write protection is invalid.

What happens if the power supply voltage drops below the detection level?

The built-in detection circuit cancels the write operation if the voltage drops below approximately 1.20 V, preventing data corruption.

Can the internal circuit be reset externally?

There is no dedicated reset pin. The internal circuit can be reset by inputting a start condition followed by a stop condition, or by sending dummy clocks after a start condition.