AT29C257-20JI Atmel, AT29C257-20JI Datasheet - Page 10

• Manufacturer Part Number: AT29C257-20JI
• Description: IC FLASH 256KBIT 200NS 32PLCC
• Manufacturer: Atmel

Specifications of AT29C257-20JI

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 256K (32K x 8)
• Speed: 200ns
• 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: AT29C25720JI

Notes for software product identification:
1. Data Format: I/O7 - I/O0 (Hex);
2. A1 - A14 = V
3. The device does not remain in identification mode if
4. The device returns to standard operation mode.
5. Manufacturer Code: 1F
Software Product
Identification Entry
4-114
Address Format: A14 - A0 (Hex).
Manufacture Code is read for A0 = V
Device Code is read for A0 = V
powered down.
Device Code: DC
IL
.
ADDRESS 2AAA
ADDRESS 5555
ADDRESS 5555
LOAD DATA AA
LOAD DATA 55
LOAD DATA 90
PAUSE 10 mS
TO
TO
TO
AT29C257
(1)
IH
.
IL;
ENTER PRODUCT
IDENTIFICATION
MODE
(2, 3, 5)
Software Product
Identification Exit
ADDRESS 2AAA
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA F0
LOAD DATA 55
PAUSE 10 mS
TO
TO
TO
(1)
EXIT PRODUCT
IDENTIFICATION
MODE
(4)