AT49F1025-90VC ATMEL Corporation, AT49F1025-90VC Datasheet

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AT49F1025-90VC

Manufacturer Part Number
AT49F1025-90VC
Description
1-Megabit (64K x 16) 5-volt only flash memory, 50mA active, 0.1mA standby
Manufacturer
ATMEL Corporation
Datasheet
Features
Description
The AT49F1024 and the AT49F1025 are 5-volt-only in-system Flash Memories. Their
1 megabit of memory is organized as 65,536 words by 16 bits. Manufactured with
Atmel’s advanced nonvolatile CMOS technology, the devices offer access times to 45
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 A. The
only difference between the AT49F1024 and the AT49F1025 is the pinout. The
AT49F1024 is pin compatable with the AT27C1024, and the AT49F1025 is pin com-
patable with the AT29C1024.
Pin Configurations
Pin Name
A0 - A15
CE
OE
WE
I/O0 - I/O15
NC
Single Voltage Operation
Fast Read Access Time - 45 ns
Internal Program Control and Timer
8K word Boot Block With Lockout
Fast Erase Cycle Time - 10 seconds
Word By Word Programming - 10 s/Word Typical
Hardware Data Protection
DATA Polling For End Of Program Detection
Small 10 x 14 mm VSOP Package
Typical 10,000 Write Cycles
– 5V Read
– 5V Reprogramming
GND
VCC
A10
A11
A12
A13
A14
A15
WE
NC
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
AT49F1025 VSOP Top View
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
No Connect
10 x 14 mm
Type 1
10 x 14 mm
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
OE
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/07
GND
I/O8
I/O9
I/O10
I/O11
I/O12
I/O13
I/O14
I/O15
NC
CE
I/O15
I/O14
I/O13
I/O12
I/O11
I/O10
VCC
I/O9
I/O8
A10
A11
A12
A13
A14
A15
WE
NC
NC
CE
A9
I/O12
I/O11
I/O10
GND
I/O9
I/O8
I/O7
I/O6
I/O5
I/O4
NC
AT49F1024 VSOP Top View
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
7
8
9
10
11
12
13
14
15
16
17
PLCC Top View
10 x 14 mm
Type 1
39
38
37
36
35
34
33
32
31
30
29
(continued)
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
A13
A12
A11
A10
A9
GND
NC
A8
A7
A6
A5
GND
A8
A7
A6
A5
A4
A3
A2
A1
A0
OE
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
GND
1-Megabit
(64K x 16)
5-volt Only
Flash Memory
AT49F1024
AT49F1025
Rev. 0765D–09/98
1

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AT49F1025-90VC Summary of contents

Page 1

... When the device is deselected, the CMOS standby current is less than 100 A. The only difference between the AT49F1024 and the AT49F1025 is the pinout. The AT49F1024 is pin compatable with the AT27C1024, and the AT49F1025 is pin com- patable with the AT29C1024. Pin Configurations ...

Page 2

To allow for simple in-system reprogrammability, the AT49F1024/1025 does not require high input voltages for programming. Five-volt-only commands determine the read and programming operation of the device. Reading data out of the device is similar to reading from an EPROM. ...

Page 3

This block, referred to as the boot block, can contain secure code that is used to bring up the system. Enabling the lockout feature will allow the boot code to stay in the ...

Page 4

Command Definition (in Hex) Command Bus Sequence Cycles Addr Read 1 Addr Chip Erase 6 5555 Main Memory Erase 6 5555 Word Program 4 5555 (2) Boot Block Lockout 6 5555 Product ID Entry 3 5555 (3) Product ID Exit ...

Page 5

DCand AC Operating Range Com. Operating Temperature (Case) Ind. V Power Supply CC Operating Modes Mode Read (2) Program Standby/Write Inhibit Program Inhibit Program Inhibit Output Disable Product Identification Hardware (5) Software Notes can ...

Page 6

... AT49F1025-45 AT49F1025-55 Min Max Min after the address transition without impact on t ACC after the falling edge of CE without impact pF). L Output Test Load Typ 4 8 AT49F1024-70 AT49F1024-90 AT49F1025-70 AT49F1025-90 Max Min Max Min ACC after an address change CE ACC OE 45/55/70 ns 90/120 ns 5 ...

Page 7

AC Word Load Characteristics Symbol Parameter Address, OE Set-up Time AS OES t Address Hold Time AH t Chip Select Set-up Time CS t Chip Select Hold Time CH t Write Pulse Width (WE or CE) WP ...

Page 8

Program Cycle Characteristics Symbol Parameter t Word Programming Time BP t Address Set-up Time AS t Address Hold Time AH t Data Set-up Time DS t Data Hold Time DH t Write Pulse Width WP t Write Pulse Width High ...

Page 9

Data Polling Characteristics Symbol Parameter t Data Hold Time Hold Time OEH Output Delay OE t Write Recovery Time WR Notes: 1. These parameters are characterized and not 100% tested. 2. See t spec ...

Page 10

Software Product (1) Identification Entry LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA 90 TO ADDRESS 5555 ENTER PRODUCT IDENTIFICATION (2)(3)(5) MODE Software Product (1) Identifcation Exit LOAD DATA ADDRESS ...

Page 11

AT49F1024 Ordering Information I (mA ACC (ns) Active Standby 0 0 0.1 50 0.3 Note: 1. The AT49F1024 has as optional boot block feature. The ...

Page 12

... Ordering Code Package AT49F1025-45JC 44J AT49F1025-45VC 40V AT49F1025-55JC 44J AT49F1025-55VC 40V AT49F1025-55JI 44J AT49F1025-55VI 40V AT49F1025-70JC 44J AT49F1025-70VC 40V AT49F1025-70JI 44J AT49F1025-70VI 40V AT49F1025-90JC 44J AT49F1025-90VC 40V AT49F1025-90JI 44J AT49F1025-90VI 40V Package Type Operation Range Commercial ( Commercial ( Industrial (- Commercial ( Industrial (- Commercial ( Industrial (- ...

Page 13

Packaging Information 44J, 44-Lead, Plastic J-Leaded Chip Carrier (PLCC) Dimensions in Inches and (Millimeters) JEDEC STANDARD MS-018 AC .045(1.14) X 45° PIN NO. 1 IDENTIFY .656(16.7) .650(16.5) .032(.813) .695(17.7) .026(.660) .685(17.4) .050(1.27) TYP .500(12.7) REF SQ .022(.559) X 45° MAX ...

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