Features
• Single Voltage Operation
– 5V Read
– 5V Reprogramming
• Fast Read Access Time - 90 ns
• Internal Program Control and Timer
• 16K Bytes Boot Block With Lockout
• Fast Erase Cycle Time - 10 seconds
• Byte-By-Byte Programming - 10 µs/Byte Typical
• Hardware Data Protection
• DATA Polling For End Of Program Detection
• Low Power Dissipation
– 50 mA Active Current
– 100 µA CMOS Standby Current
• Typical 10,000 Write Cycles
8-Megabit
(1M x 8)
5-volt Only
Flash Memory
Description
The AT49F080(T) is a 5-volt only in-system Flash Memory device. Its 8-megabits of
memory is organized as 1,024,576 words by 8-bits. Manufactured with Atmel’s
advanced nonvolatile CMOS technology, the device offers access times to 90 ns with
power dissipation of just 275 mW over the commercial temperature range. When the
device is deselected, the CMOS standby current is less than 100 µA.
AT49F080
AT49F080T
The device contains a user-enabled “boot block” protection feature. Two versions of
the feature are available: the AT49F080 locates the boot block at lowest order
addresses (“bottom boot”); the AT49F080T locates it at highest order addresses (“top
(continued)
boot”).
SOIC
Pin Configurations
NC
RESET
A11
A10
A9
1
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
VCC
CE
2
Pin Name
A0 - A19
CE
Function
3
A12
A13
A14
A15
A16
A17
A18
A19
NC
4
5
Addresses
A8
6
A7
7
A6
8
Chip Enable
Output Enable
Write Enable
Reset
A5
9
A4
10
11
12
13
14
15
16
17
18
19
20
21
22
OE
NC
NC
NC
A3
NC
WE
A2
NC
A1
WE
RESET
RDY/BUSY
I/O0 - I/O7
NC
A0
OE
I/O0
I/O1
I/O2
I/O3
GND
GND
RDY/BUSY
I/O7
I/O6
I/O5
I/O4
VCC
Ready/Busy Output
Data Inputs/Outputs
No Connect
TSOP Top VIew
Type 1
CBGA Top View
1
2
3
4
5
6
7
A19
A18
A17
A16
A15
A14
A13
A12
CE
1
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
NC
2
NC
3
WE
A
B
C
D
E
F
4
OE
A5 A8 A11 NC A12 A15 A17
A4 A7 A10 VCC A13 NC A18
A6 A9 RST CE A14 A16 A19
A3 I/O1 NC VCC I/O4 I/O7 NC
A2 A0 I/O3 GND I/O6 OE NC
A1 I/O0 I/O2 GND I/O5 RY/BY WE
5
RDY/BUSY
I/O7
I/O6
I/O5
I/O4
VCC
GND
GND
I/O3
I/O2
I/O1
I/O0
A0
6
7
8
9
VCC
NC
10
11
12
13
14
15
16
17
18
19
20
RESET
A11
A10
A9
A8
Rev. 0584C–10/98
A7
A6
A1
A5
A2
A4
A3
1