AT49F080-12CI
器件描述:8-Megabit 1M x 8 5-volt Only Flash Memory
文件大小:98.89KB,共12页
Sponsor by e络盟
器件资料摘要:
1
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
Description
The AT49F080 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.
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
boot”).
8-Megabit
(1M x 8)
5-volt Only
Flash
Memory
AT49F080
AT49F080T
AT49F080/080T
0584B-A–8/97
Pin Configurations
Pin Name Function
A0 - A19 Addresses
CE Chip Enable
OE Output Enable
WE Write Enable
RESET Reset
RDY/BUSY Ready/Busy Output
I/O0 - I/O7 Data Inputs/Outputs
NC No Connect
CBGA Top View
A
B
C
D
E
F
1 234567
A5
A4
A6
A3
A2
A1
A8
A7
A9
I/O1
A0
I/O0
A11
A10
RST
NC
I/O3
I/O2
NC
VCC
CE
VCC
GND
GND
A12
A13
A14
I/O4
I/O6
I/O5
A15
NC
A16
I/O7
OE
RY/BY
A17
A18
A19
NC
NC
WE
(continued)
SOIC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
NC
RESET
A11
A10
A9
A8
A7
A6
A5
A4
NC
NC
A3
A2
A1
A0
I/O0
I/O1
I/O2
I/O3
GND
GND
VCC
CE
A12
A13
A14
A15
A16
A17
A18
A19
NC
NC
NC
NC
WE
OE
RDY/BUSY
I/O7
I/O6
I/O5
I/O4
VCC
TSOP Top VIew
Type 1
A17
A16
A14
A15
A12
CE
A13
A10
A8
A9
RESET
A11
NC
VCC
1
2
4
3
6
5
10
9
7
8
14
13
11
12
I/O2
I/O3
I/O1
I/O0
VCC
I/O4
GND
GND
I/O6
I/O5
RDY/BUSY
I/O7
OE
WE
33
32
30
31
28
27
29
36
34
35
38
37
39
40
25
26
A1
A0
15
16
A7
A6
A5
20
19 A2
A3
22
21
23
2417
18
A4
A19
A18
NC
NC