27C512A_04 Datasheet, PDF (1/10 Pages) Microchip Technology – 512K (64K x 8) CMOS EPROM

Obsolete Device
27C512A
512K (64K x 8) CMOS EPROM
FEATURES
• High speed performance
• CMOS Technology for low power consumption
- 25 mA Active current
- 30 µA Standby current
• 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
- 32-pin PLCC Package
- 28-pin SOIC package
- Tape and reel
• Data Retention > 200 years
• Available for the following temperature ranges
- Commercial: 0°C to +70°C
- Industrial:
-40°C to +85°C
- Automotive:
-40°C to +125°C
DESCRIPTION
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.
PACKAGE TYPES
PLCC
A6 5
A5 6
A4 7
A3 8
A2 9
A1 10
A0 11
NC 12
O0 13
DIP/SOIC
A15
1
A12
2
A7
3
A6
4
A5
5
A4
6
A3
7
A2
8
A1
9
A0
10
O0
11
O1
12
O2
13
VSS
14
29 A8
28 A9
27 A11
26 NC
25 OE/VPP
24 A10
23 CE
22 O7
21 O6
28
VCC
27
A14
26
A13
25
A8
24
A9
23
A11
22
OE/VPP
21
A10
20
CE
19
O7
18
O6
17
O5
16
O4
15
O3
 2004 Microchip Technology Inc.
DS11173G-page 1