W27C512 Datasheet, PDF (1/15 Pages) Winbond – 64K X 8 ELECTRICALLY ERASABLE EPROM

W27C512
64K × 8 ELECTRICALLY ERASABLE EPROM
GENERAL DESCRIPTION
The W27C512 is a high speed, low power Electrically Erasable and Programmable Read Only
Memory organized as 65536 × 8 bits that operates on a single 5 volt power supply. The W27C512
provides an electrical chip erase function.
FEATURES
• High speed access time:
45/70/90/120 nS (max.)
• Read operating current: 30 mA (max.)
• Erase/Programming operating current
30 mA (max.)
• Standby current: 1 mA (max.)
• Single 5V power supply
• +14V erase/+12V programming voltage
• Fully static operation
• All inputs and outputs directly TTL/CMOS
compatible
• Three-state outputs
• Available packages: 28-pin 600 mil DIP, 330 mil
32-pin PLCC
PIN CONFIGURATIONS
BLOCK DIAGRAM
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
Q0
Q1
Q2
GND
1
28
2
27
3
26
4
25
5
24
6 _28-pin 23
7 ^DIP 22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
VCC
A14
A13
A8
A9
A11
OE/Vpp
A10
CE
Q7
Q6
Q5
Q4
Q3
CE
OE/VPP
CONTROL
Q0
OUTPUT
.
BUFFER
.
Q7
A0
.
DECODER
.
A15
V_CC
GND
CORE
ARRAY
A A VAA
A1 1NC1 1
7 2 5CC4 3
432 1 33 3
A6 5
2 1 0 29 A8
A5 6
A4 7
A3 8
A2 9
A1 10
32-pin
PLCC
28 A9
27 A11
26 ^NC
25 OE/Vpp
24 A10
A0 11
23 _CE
NC
Q0
12 ₁
13 ₄
1
5
1
6
11
78
1
9
2 ²²
0 ²¹
Q7
Q6
Q QGN QQ Q
1 2NC 3 4 5
D
PIN DESCRIPTION
SYMBOL
A0−A15
Q0−Q7
CE
OE /VPP
VCC
GND
NC
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Enable
Output Enable, Program/Erase
Supply Voltage
Power Supply
Ground
No Connection
Publication Release Date: November 1999
-1-
Revision A4