The document is the datasheet of AT28C16A, which introduces the basic characteristics and usage methods of the product.
The HY29F400 is a 4‑Megabit CMOS flash memory offered in 44‑pin PSOP and 48‑pin TSOP packages. It can be programmed and erased in‑system with a single 5 V supply and supports standard JEDEC single‑supply flash command sets. The device provides fast access times (as low as 55 ns) and low power consumption, making it suitable for high‑speed microprocessor applications.
Key features include sector‑erase architecture with flexible boot block options, sector‑protect functions, erase‑suspend/resume capability, and a minimum of 100 000 program/erase cycles. The datasheet details pin configurations, bus operations, command sequences, and timing specifications for reliable integration. This manual is written in Chinese.
| Capacity | 4 Mbit (512 K × 8 / 256 K × 16) |
|---|---|
| Operating Voltage | 5 V (single‑supply) |
| Access Time | 55 ns (typical) |
| Read Current (byte mode) | 20 mA typical |
| Program/Erase Current | 30 mA typical |
| Standby Current | 5 µA maximum |
| Program/Erase Cycles | ≥ 100 000 |
| Package Options | 44‑pin PSOP, 48‑pin TSOP, reverse TSOP |
It operates from a single 5 V supply.
The device is rated for at least 100 000 program/erase cycles.
It is offered in 44‑pin PSOP, 48‑pin TSOP, and reverse TSOP packages.
Yes, erase‑suspend/resume allows erasing a sector while other sectors remain accessible.