This document describes the features and characteristics of the A29002/A290021 series 256K x 8 bit CMOS 5.0 Volt-only, Boot Sector Flash Memory, including voltage requirements, access times, current consumption, flexible sector architecture, sector protection, boot block configurations, embedded erase algorithms, embedded program algorithm, program/erase cycles per sector, data retention, compatibility, data polling and toggle bits, erase suspend/erase resume, etc.
The document describes the AMIC A29002 and A290021 series as 256K x 8-bit CMOS Flash Memory devices organized into seven sectors. These chips operate on a single 5.0V power supply, eliminating the need for an additional programming voltage (VPP) during in-system operations.
Key features include flexible sector architecture allowing any combination of sectors to be erased or protected, embedded algorithms for automatic program and erase verification, and hardware reset functionality (available only on the A29002). The devices are available in 32-pin PLCC, TSOP, and PDIP packages.
| Memory Organization | 256K X 8 Bit |
|---|---|
| Operating Voltage | 5.0V + 10% |
| Access Times (Max) | 5/70/90/120/150 ns |
| Active Read Current | 20 mA typical |
| Program/Erase Current | 30 mA typical |
| CMOS Standby Current | 1 uA typical |
| Program/Erase Cycles | 100,000 per sector |
| Data Retention | 20-year at 125°C |
No, it is designed to be programmed in-system with the standard system 5.0 volt VCC supply.
The devices are offered in 32-pin PLCC, TSOP, and PDIP packages.
No, the hardware reset pin is not available on the A290021 model.