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27LV64 Datasheet

  • 27LV64

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

  • 10頁(yè)

  • Microchip   Microchip

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27LV64
64K (8K x 8) Low-Voltage CMOS EPROM
FEATURES
鈥?Wide voltage range 3.0V to 5.5V
鈥?High speed performance
- 200 ns access time available at 3.0V
鈥?CMOS Technology for low power consumption
- 8 mA active current at 3.0V
- 20 mA active current at 5.5V
- 100
碌
A standby current
鈥?Factory programming available
鈥?Auto-insertion-compatible plastic packages
鈥?Auto ID aids automated programming
鈥?Separate chip enable and output enable controls
鈥?High speed 鈥渆xpress鈥?programming algorithm
鈥?Organized 8K x 8: JEDEC standard pinouts
- 28-pin Dual-in-line package
- 32-pin PLCC Package
- 28-pin SOIC package
- Tape and reel
鈥?Available for the following temperature ranges:
- Commercial:
0藲C to +70藲C
- Industrial:
-40藲C to +85藲C
PACKAGE TYPES
DIP/SOIC
V
PP
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
V
SS
鈥?
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
CC
PGM
NC
A8
A9
A11
OE
A10
CE
O7
O6
O5
O4
O3
27LV64
PLCC
A7
A12
V
PP
NU
Vcc
PGM
NC
4
3
2
1
32
31
30
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鈥檚 low
voltage microprocessors and peripherals in battery
powered applications.
A complete family of packages is offered to provide the
most 鏗俥xibility 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.
A6
A5
A4
A3
A2
A1
A0
NC
O0
5
6
29
28
7
8
9
10
11
12
13
14
15
16
27
26
25
24
23
22
21
A8
A9
A11
NC
OE
A10
CE
O7
O6
17
18
19
漏
1996 Microchip Technology Inc.
O1
O2
V
SS
NU
O3
O4
O5
20
27LV64
DS11024E-page 1
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