Nec B58944 Datasheet 2021 [work]

Based on technical data available for its equivalent parts and automotive application listings: Parallel Static RAM (SRAM). Memory Size: 256 Kib (32K x 8 bits). Package Type: SOP-28 (Small Outline Package with 28 pins).

It is considered an "easily damaged" part on Auto ECU circuit boards and is often sold as a replacement "empty chip" (no pre-loaded program or data) for technicians performing hardware-level repairs. nec b58944 datasheet 2021

Reliability, testing, and lifetime NEC provides reliability test results: forward current life-test data (e.g., L70 or L50 lifetime at given current and ambient), junction temperature cycling, moisture sensitivity level (MSL), and ESD classification. Expected lifetime for typical white SMD LEDs at moderate drive currents and good thermal management is often thousands to tens of thousands of hours; exact numbers depend on operating current and temperature and are presented as measured data and derating guidance in the 2021 datasheet. Based on technical data available for its equivalent