M27W512 is a 512 Kbit (64K x8) Low Voltage UV EPROM and OTP EPROM. Product features include 2.7 to 3.6V supply voltage, 70ns to 80ns access time, 15µA to 15mA current consumption, 100µs/byte programming time, 2000V ESD protection and 200mA Latchup protection immunity. Products are available in 28-pin DIP, 28-pin PDIP, 32-pin PLCC and 28-pin TSOP packages.
The M27W512 is a 512 Kbit (64K × 8) low‑voltage EPROM offered in UV (ultraviolet erase) and OTP (one‑time programmable) versions. It operates with a supply voltage of 2.7 V to 3.6 V in read mode and provides access times of 70 ns (3.0‑3.6 V) or 80 ns (2.7‑3.6 V). Standby current is limited to 15 µA and active current to 15 mA at 5 MHz, while programming each byte takes 100 µs.
The device is available in FDIP28W, PDIP28, PLCC32 and TSOP28 packages, all also offered in lead‑free versions. It features 2000 V ESD protection, 200 mA latch‑up immunity, and an electronic signature for manufacturer and device identification. Programming can be performed with the PRESTO II algorithm, and erasure for UV EPROMs requires exposure to short‑wave UV light.
| Memory Capacity | 512 Kbit (64K × 8) |
|---|---|
| Supply Voltage (Read) | 2.7 V to 3.6 V |
| Access Time (3.0‑3.6 V) | 70 ns |
| Access Time (2.7‑3.6 V) | 80 ns |
| Standby Current | 15 µA max |
| Active Current (5 MHz) | 15 mA max |
| Programming Time | 100 µs per byte |
| ESD Protection | 2000 V |
| Latch‑up Immunity | 200 mA |
| Available Packages | FDIP28W, PDIP28, PLCC32, TSOP28 (lead‑free versions) |
The device operates with a supply voltage from 2.7 V to 3.6 V in read mode.
Programming each byte takes 100 µs.
Standby current is up to 15 µA, and active current is up to 15 mA at 5 MHz.
The M27W512 is available in FDIP28W, PDIP28, PLCC32, and TSOP28 packages, all also in lead‑free versions.