M93C56-WBN6P

Memory IC Overview

The M93C56-WBN6P is a 2 Kbit (256 x 8 or 128 x 16) MICROWIRE serial access EEPROM manufactured by STMicroelectronics. It operates within a supply voltage range of 2.5 V to 5.5 V and supports clock frequencies up to 2 MHz over an ambient temperature range of -40 °C to +85 °C. The device features byte and page write cycle times within 5 ms, enhanced ESD protection rated at 4000 V human body model, and data retention exceeding 200 years. It is available in SO8N, TSSOP8, and UFDFPN8 packages.

Memory IC Feature Summary

• Compatible with the industry standard MICROWIRE bus protocol for serial communication
• Supports dual memory organization configured as bytes (x8) or words (x16)
• Includes READY/BUSY signal monitoring during programming cycles
• Provides enhanced ESD and latch-up protection capabilities

Memory IC Applications

• Data storage in industrial control systems
• Configuration memory for consumer electronics
• Parameter storage in automotive electronic modules

Memory IC Procurement Notes

Verify the specific package variant (SO8N, TSSOP8, or UFDFPN8) required for your PCB layout when ordering. Confirm that the operating environment stays within the specified -40 °C to +85 °C temperature range and that the supply voltage remains between 2.5 V and 5.5 V. Ensure proper decoupling capacitors are placed near the VCC pins to maintain signal integrity during operation.

Memory IC Selection Notes

Select this component if your design requires a non-volatile memory solution accessible via a simple three-wire interface. The M93C56-W series is suitable for applications needing moderate write endurance and long data retention without requiring complex controller interfaces. Consider the M93C56-R variant if your system operates at lower voltages starting from 1.8 V.

Memory IC Part Context

This part belongs to the M93Cx6 family of electrically erasable programmable read-only memories. The family includes devices with capacities ranging from 1 Kbit to 16 Kbit. The 'W' suffix indicates the commercial temperature grade and voltage range specifications defined in the official datasheet.

Memory IC Replacement Considerations

M93C56-RMN6P

Memory IC FAQ

How is the memory organization selected?

The Organization Select (ORG) input determines the configuration. Connecting ORG to Ground selects byte (x8) organization, while leaving it unconnected or connecting it to VCC selects word (x16) organization.

What happens if the number of clock pulses does not match the instruction requirement?

The device contains an on-chip counter that validates clock pulses. If the count is incorrect due to noise or glitches, the instruction is aborted, and the memory contents remain unmodified.