STMicroelectronics, Inc. Memory M27W401-80F6

The M27W401-80F6 is a 4 Mbit (512Kb x 8) low voltage UV EPROM and OTP EPROM from Quarktwin Technology Ltd. It operates with a supply voltage range of 2.7V to 3.6V during read operations, with access times of 70 ns at 3.0V to 3.6V and 80 ns at 2.7V to 3.6V. The device is pin compatible with the M27C4001, making it suitable for applications requiring easy integration. This memory chip features low power consumption, with a maximum standby current of 15 µA and an active current of 15 mA at 5 MHz. The programming time is 100 µs per byte, and it utilizes high reliability CMOS technology, offering 2,000V ESD protection and 200 mA latchup protection immunity. The electronic signature includes a manufacturer code of 20h and a device code of 41h. The M27W401-80F6 is available in multiple package types, including FDIP32W, PDIP32, PLCC32, and TSOP32, providing flexibility for various design requirements.