4800 Great America Parkway Ste 202

Tel: 408-235-8680

Santa Clara, CA. 95054

Fax: 408-235-8685

Preliminary

1

EN27LV020 / EN27LV020B

FEATURES

• Single +3.3V Power Supply

-Regulated power supply 3.0V - 3.6V

(EN27LV020

)

-Unregulated power supply 2.7V - 3.6V

(EN27LV020B for battery operated systems)

• Programming Voltage +12.75V

• Typical programming time 20µs

• Low Power CMOS Operation

• 1µA Standby (Typical)

• 15mA Operation (Max.)

• CMOS- and TTL-Compatible I/O

• High-Reliability CMOS Technology

• Latch-Up Immunity to 100mA

• Standard Product Identification Code

• JEDEC Standard Pinout

• 32-pin PDIP

• 32-pin PLCC

• 32-pin TSOP (Type 1)

• Commercial and Industrial Temperature

Ranges

GENERAL DESCRIPTION

The EN27LV020 / EN27LV020B is a low-voltage, low-power 2-Megabit, 3.3V one-time-

programmable (OTP) read-only memory (EPROM). Organized into 256K words with 8 bits per

word, it features QuikRite

µs per byte. Any

byte can be accessed in less than 90ns. The EN27LV020 / EN27LV020B has separate Output

Enable ( OE ) and Chip Enable ( CE ) controls which eliminate bus contention issues.

The

EN27LV020 has a Vcc tolerance range of 3.0V to 3.6 V, making it suitable for use in systems

that have regulated power supplies. The EN27LV020B has a Vcc tolerance range of 2.7 V to

3.6V, making it an ideal device for battery operated systems.

FIGURE 1. PDIP

Pin Name

Function

A0-A17

Addresses

DQ0-DQ7

Outputs

CE

Chip Enable

OE

Output Enable

PGM

Program Strobe

A17