1996 Microchip Technology Inc. DS11024E-page 1
27LV64

FEATURES

• Wide voltage range 3.0V to 5.5V
• High speed performance
- 200 ns access time available at 3.0V
• CMOS Technology for low power consumption
- 8 mA active current at 3.0V
- 20 mA active current at 5.5V
- 100

m

A standby current
• Factory programming available
• Auto-insertion-compatible plastic packages
• Auto ID aids automated programming
• Separate chip enable and output enable controls
• High speed “express” programming algorithm
• Organized 8K x 8: JEDEC standard pinouts
- 28-pin Dual-in-line package
- 32-pin PLCC Package
- 28-pin SOIC package
- Tape and reel
• Available for the following temperature ranges:
- Commercial: 0˚C to +70˚C
- Industrial: -40˚C to +85˚C

DESCRIPTION

The Microchip Technology Inc. 27LV64 is a low-voltage
(3.0 volt) CMOS EPROM designed for battery powered
applications. The device is organized as 8K x 8 (8K-
Byte) non-volatile memory product. The 27LV64 con-
sumes only 8mA maximum of active current during a
3.0 volt read operation therefore improving battery per-
formance. This device is designed for very low voltage
applications where conventional 5.0 volt only EPROMs
can not be used. Accessing individual bytes from an
address transition or from power-up (chip enable pin
going low) is accomplished in less than 200 ns at
3.0V.This device allows system designers the ability to
use low voltage non-volatile memory with today’s low
voltage microprocessors and peripherals in battery
powered applications.
A complete family of packages is offered to provide the
most flexibility in applications. For surface mount appli-
cations, PLCC or SOIC packaging is available. Tape
and reel packaging is also available for PLCC or SOIC
packages.

PACKAGE TYPES
• 1
2
3
4
5
6
7
8
9
10
11
12
13
14

28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
V
V
PGM
NC
A8
A9
A11
OE
A10
CE
O7
O6
O5
O4
O3
PP
SS
CC
A6
A5
A4
A3
A2
A1
A0
NC
O0
A8
A9
A11
NC
OE
A10
CE
O7
O6
A7 A12 V NU Vcc PGM NC
O1 O2
V NU
O3 O4 O5
PP
SS
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
14 15 16 17 18 19 20
4 3 2 1
32 31 30
DIP/SOIC
PLCC
27L
V64
27L
V64

64K (8K x 8) Low-Voltage CMOS EPROM

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