24LC16BH-I/P

Memory IC Overview

The Microchip Technology 24LC16BH-I/P is a 16-Kbit Electrically Erasable PROM organized as eight blocks of 256 x 8-bit memory. It features a two-wire serial interface compatible with I²C protocols, supporting clock frequencies up to 400 kHz for VCC between 2.5V and 5.5V. The device operates within an industrial temperature range of -40°C to +85°C and utilizes low-power CMOS technology. Key electrical parameters include a maximum read current of 1 mA, standby current of 1 μA at industrial temperatures, and a typical access time of 900 ns.

Memory IC Feature Summary

• Hardware write-protect capability allows locking the upper half of the memory array via the WP pin
• Integrated page write buffer supports writing up to 16 bytes in a single operation
• Schmitt trigger inputs on SCL and SDA lines provide noise suppression for reliable data transfer
• Self-timed erase/write cycles eliminate the need for external timing control

Memory IC Applications

• Embedded systems requiring non-volatile storage for configuration parameters
• Industrial control units needing reliable data retention under varying environmental conditions
• Consumer electronics utilizing I²C buses for low-pin-count memory expansion

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature grade (-40°C to +85°C) and 'P' indicates the 8-Lead PDIP package. Confirm the specific voltage range requirements align with the 2.5V to 5.5V specification for the 24LC16BH variant, distinct from the 1.7V capable 24AA16H or 24FC16H models.

Memory IC Selection Notes

Select this component when hardware-level protection for half the memory space is required. The PDIP package is suitable for through-hole mounting applications. Ensure the system design accommodates the specific block addressing scheme where A0-A2 pins are not utilized for address selection but rather for block definition in the control byte.

Memory IC Part Context

This part belongs to the 24XX16H family of serial EEPROMs from Microchip Technology. Unlike standard 24LC16 variants, the H-series introduces a dedicated hardware write-protect feature controlled by the WP pin. This distinguishes it from other 16Kbit devices that rely solely on software-based protection mechanisms.

Memory IC Replacement Considerations

Direct replacements include other 24LC16BH variants with different packages such as SOIC (SN), TSSOP (ST), or MSOP (MS). Cross-family substitution with 24AA16H or 24FC16H requires verification of voltage compatibility and clock speed limits.