AT29C020-90JI Atmel, AT29C020-90JI Datasheet - Page 13
![IC FLASH 2MBIT 90NS 32PLCC](/photos/7/21/72190/453-32-plcc_sml.jpg)
AT29C020-90JI
Manufacturer Part Number
AT29C020-90JI
Description
IC FLASH 2MBIT 90NS 32PLCC
Manufacturer
Atmel
Datasheet
1.AT29C020-12JU.pdf
(17 pages)
Specifications of AT29C020-90JI
Format - Memory
FLASH
Memory Type
FLASH
Memory Size
2M (256K x 8)
Speed
90ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
32-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
AT29C02090JI
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT29C020-90JI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
25. Software Product Identification
26. Software Product Identification
Notes:
0291S–FLASH–11/08
Entry
Exit
1. Data Format: I/O15 - I/O0 (Hex);
2. A1 - A17 = V
3. The device does not remain in identification mode if
4. The device returns to standard operation mode.
5. Manufacturer Code is 1F. The Device Code is DA.
Address Format: A14 - A0 (Hex).
Manufacturer Code is read for A0 = V
Device Code is read for A0 = V
powered down.
(1)
(1)
ADDRESS 2AAA
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA 55
LOAD DATA 90
ADDRESS 2AAA
PAUSE 10 mS
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA 55
LOAD DATA F0
PAUSE 10 mS
TO
TO
TO
TO
TO
TO
IL
.
ENTER PRODUCT
IDENTIFICATION
MODE
EXIT PRODUCT
IDENTIFICATION
MODE
(2)(3)(5)
(4)
IH
.
IL
;
27. Boot Block Lockout
Notes:
Feature Enable Algorithm
ADDRESS 00000H
1. Data Format: I/O7 - I/O0 (Hex);
2. Lockout feature set on lower address boot block.
3. Lockout feature set on higher address boot block.
LOAD DATA 00
PAUSE 20 mS
Address Format: A14 - A0 (Hex).
TO
(2)
ADDRESS 2AAA
ADDRESS 2AAA
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA 55
LOAD DATA 80
LOAD DATA 55
LOAD DATA 40
TO
TO
TO
TO
TO
TO
ADDRESS 3FFFFH
LOAD DATA FF
PAUSE 20 mS
AT29C020
TO
(1)
(3)
13