W27E040 Datasheet, PDF (1/15 Pages) Winbond – 512K X 8 ELECTRICALLY ERASABLE EPROM

W27E040
512K × 8 ELECTRICALLY ERASABLE EPROM
GENERAL DESCRIPTION
The W27E040 is a high speed, low power Electrically Erasable and Programmable Read Only
Memory organized as 524288 × 8 bits that operates on a single 5 volt power supply. The W27E040
provides an electrical chip erase function.
FEATURES
• High speed access time:
90/120 nS (max.)
• Read operating current: 15 mA (typ.)
• Erase/Programming operating current
15 mA (typ.)
• Standby current: 5 µA (typ.)
• 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: 32-pin 600 mil DIP, 450
mil SOP, PLCC and TSOP
PIN CONFIGURATIONS
BLOCK DIAGRAM
A11
1
A9
2
A8
3
A13
4
A14
5
A17
6
A18
7
VCC
8
VPP
9
A16
10
A15
11
A12
12
A7
13
A6
14
A5
15
A4
16
V PP 1
A16 2
A15 3
A12 4
A7 5
A6 6
A5 7
A4 8
A3 9
A2 10
A1 11
A0 12
Q0 13
Q1 14
Q2 15
GND 16
32-pin
DIP
32
V CC
31
A18
30
A17
29
A14
28
A13
27
A8
26
A9
25
A11
24
OE
23
A10
22
CE
21
Q7
20
Q6
19
Q5
18
Q4
17
Q3
A A A VV A A
1 1 1 PC 1 1
2 5 6 PC 8 7
4 3 2 1 32 31 30
A7
5
29
A14
A6
6
28
A13
A5
7
A4
8
A3
9
32-pin
PLCC
27
A8
26
A9
25
A11
A2
10
24
OE
A1
11
23
A10
A0
12
Q0
13
22
CE
21
Q7
14 15 16 17 18 19 20
QQGQQQQ
1 2N3 4 56
D
32-pin
TSOP
32
OE
31
A10
30
CE
29
Q7
28
Q6
27
Q5
26
Q4
25
Q3
24
GND
23
Q2
22
Q1
21
Q0
20
A0
19
A1
18
A2
17
A3
CE
CONTROL
OE
A0
.
.
A18
VCC
GND
VPP
DECODER
Q0
OUTPUT
.
BUFFER
.
Q7
CORE
ARRAY
PIN DESCRIPTION
SYMBOL
A0−A18
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: May 1997
-1-
Revision A1