M27W201

M27W201 2 Mbit (256Kb x 8) Low Voltage UV EPROM and OTP EPROM s 2.7V to 3.6V LOW VOLTAGE in READ OPERATION ACCESS TIME: – 70ns at VCC = 3.0V to 3.6V – 80ns at VCC = 2.7V to 3.6V 32 32 s s s PIN COMPATIBLE with M27C2001 LOW POWER CONSUMPTION: – 15µA max Standby Current – 15mA max Active Current at 5MHz 1 1 FDIP32W (F) PDIP32 (B) s s PROGRAMMING TIME 100µs/byte HIGH RELIABILITY CMOS TECHNOLOGY – 2,000V ESD Protection – 200mA Latchup Protection Immunity PLCC32 (K) TSOP32 (N) 8 x 20 mm s ELECTRONIC SIGNATURE – Manufacturer Code: 20h – Device Code: 61h Figure 1. Logic Diagram DESCRIPTION The M27W201 is a low voltage 2 Mbit EPROM offered in the two range UV (ultra violet erase) and OTP (one time programmable). It is ideally suited for microprocessor systems requiring large data or program storage and is organised as 262,144 by 8 bits. The M27W201 operates in the read mode with a supply voltage as low as 2.7V at –40 to 85°C temperature range. The decrease in operating power allows either a reduction of the size of the battery or an increase in the time between battery recharges. The FDIP32W (window ceramic frit-seal package) has a transparent lid which allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure. For application where the content is programmed only one time and erasure is not required, the M27W201 is offered in PDIP32, PLCC32 and TSOP32 (8 x 20 mm...