27C512A
512K (64K x 8) CMOS EPROM
FEATURES
PACKAGE TYPES
• High speed performance
PLCC
• CMOS Technology for low power consumption
- 25 mA Active current
5
29
28
27
26
25
24
23
22
21
A6
A5
A4
A3
A2
A1
A0
NC
A8
A9
6
- 30 µA Standby current
7
A11
NC
OE/VPP
A10
CE
8
• Factory programming available
• Auto-insertion-compatible plastic packages
• Auto ID aids automated programming
• High speed express programming algorithm
• Organized 64K x 8: JEDEC standard pinouts
- 28-pin Dual-in-line package
9
10
11
12
O7
O6
13
O0
DIP/SOIC
- 32-pin PLCC Package
A15
A12
A7
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
A14
A13
A8
- 28-pin SOIC package
2
3
- Tape and reel
A6
4
A5
• Data Retention > 200 years
5
A9
A4
6
A11
OE/VPP
A10
CE
• Available for the following temperature ranges
A3
7
A2
8
- Commercial:
- Industrial:
0˚C to +70˚C
A1
9
-40˚C to +85˚C
-40˚C to +125˚C
A0
10
11
12
13
14
O7
O0
O1
O2
VSS
O6
- Automotive:
O5
O4
DESCRIPTION
O3
The Microchip Technology Inc. 27C512A is a CMOS
512K bit electrically Programmable Read Only Memory
(EPROM). The device is organized into 64K words by
8 bits (64K bytes). Accessing individual bytes from an
address transition or from power-up (chip enable pin
going low) is accomplished in less than 90 ns. This
very high speed device allows the most sophisticated
microprocessors to run at full speed without the need
for WAIT states. CMOS design and processing
enables this part to be used in systems where reduced
power consumption and high reliability are require-
ments.
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 or
reel packaging is also available for PLCC or SOIC
packages.
1998 Microchip Technology Inc.
DS11173F-page 1
This Material Copyrighted by Its Respective Manufacturer