AT49F04090PC ATMEL Corporation, AT49F04090PC Datasheet
AT49F04090PC
Manufacturer Part Number
AT49F04090PC
Description
DIP32
Manufacturer
ATMEL Corporation
Datasheet
1.AT49F04012JC.pdf
(13 pages)
Specifications of AT49F04090PC
Date_code
08+
Features
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Description
The AT49F040 is a 5-volt-only in-system Flash Memory. Its 4 megabits of memory is
organized as 524,288 words by 8 bits. Manufactured with Atmel’s advanced nonvola-
tile CMOS technology, the device offers access times to 55 ns with power dissipation
of just 275 mW over the commercial temperature range. When the device is dese-
lected, the CMOS standby current is less than 100 µA.
The device contains a user-enabled “boot block” protection feature. The AT49F040
locates the boot block at lowest order addresses (“bottom boot”).
Pin Configurations
Pin Name
A0 - A18
CE
OE
WE
I/O0 - I/O7
Single-voltage Operation
Fast Read Access Time – 55 ns
Internal Program Control and Timer
16-Kbyte Boot Block with Lockout
Fast Erase Cycle Time – 10 seconds
Byte-by-byte Programming – 50 µs/Byte
Hardware Data Protection
DATA Polling for End of Program Detection
Low Power Dissipation
Typical 10,000 Write Cycles
VCC
A18
A11
A13
A14
A17
A16
A15
A12
WE
A9
A8
A7
A6
A5
A4
– 5V Read
– 5V Reprogramming
– 50 mA Active Current
– 100 µA CMOS Standby Current
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
TSOP Top View
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
Type 1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
GND
I/O2
I/O1
I/O0
A0
A1
A2
A3
I/O0
A7
A6
A5
A4
A3
A2
A1
A0
GND
I/O0
I/O1
I/O2
PLCC Top View
A18
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
DIP Top View
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VCC
WE
A17
A14
A13
A8
A9
A11
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
29
28
27
26
25
24
23
22
21
A14
A13
A8
A9
A11
OE
A10
CE
I/O7
(continued)
4-megabit
(512K x 8)
5-volt Only
Flash Memory
AT49F040
Rev. 0998D–03/01
1
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