AT28C010E-20JI Atmel, AT28C010E-20JI Datasheet - Page 8

• Manufacturer Part Number: AT28C010E-20JI
• Description: IC EEPROM 1MBIT 200NS 32PLCC
• Manufacturer: Atmel

Specifications of AT28C010E-20JI

• Format - Memory: EEPROMs - Parallel
• Memory Type: EEPROM
• Memory Size: 1M (128K 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: AT28C010E20JI

Software Data Protection
Enable Algorithm
Notes for software program code:
Software Protected Write Cycle Waveforms
Notes:
8
1. Data Format: I/O7 - I/O0 (Hex);
2. Write Protect state will be activated at end of
3. Write Protect state will be deactivated at end of
4. 1 to 128 bytes of data are loaded.
Address Format: A14 - A0 (Hex).
write even if no other data is loaded.
write period even if no other data is loaded.
1. A0 through A14 must conform to the addressing sequence for the first 3 bytes as shown above.
2. After the command sequence has been issued and a page write operation follows, the page address inputs (A7 - A16) must
3. OE must be high only when WE and CE are both low.
be the same for each high to low transition of WE (or CE).
LOAD LAST BYTE
AT28C010 Com/Ind
ANY ADDRESS
ADDRESS 2AAA
LAST ADDRESS
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA XX
LOAD DATA A0
LOAD DATA 55
TO
TO
TO
TO
TO
(1)
(4)
WRITES ENABLED
ENTER DATA
PROTECT STATE
(2)
Software Data Protection
Disable Algorithm
(1)(2)(3)
LOAD LAST BYTE
ANY ADDRESS
ADDRESS 2AAA
ADDRESS 2AAA
LAST ADDRESS
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA XX
LOAD DATA 55
LOAD DATA 80
LOAD DATA 55
LOAD DATA 20
TO
TO
TO
TO
TO
TO
TO
TO
(4)
(1)
EXIT DATA
PROTECT STATE
(3)