AT28C64B-15PC Atmel, AT28C64B-15PC Datasheet - Page 9

• Manufacturer Part Number: AT28C64B-15PC
• Description: IC EEPROM 64KBIT 150NS 28DIP
• Manufacturer: Atmel

Specifications of AT28C64B-15PC

• Format - Memory: EEPROMs - Parallel
• Memory Type: EEPROM
• Memory Size: 64K (8K x 8)
• Speed: 150ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Chip Erase Waveforms
Software Data Protection Algorithms
Software Data Protection Enable Algorithm
0270I–PEEPR–08/03
t
t
V
Note:
S
W
H
= t
= 10 ms (min.)
= 12.0 V ±0.5 V
H
= 1 µs (min.)
2. Data Format: I/O7 - I/O0 (Hex);
3. Write Protect state will be activated at end of write even if no other data is loaded.
4. Write Protect state will be deactivated at end of write period even if no other data is
5. 1 to 64 bytes of data are loaded.
1. Notes for software program code:
Address Format: A12 - A0 (Hex).
loaded.
LOAD LAST BYTE
t
ANY ADDRESS
ADDRESS 0AAA
LAST ADDRESS
S
LOAD DATA AA
ADDRESS 1555
ADDRESS 1555
LOAD DATA XX
LOAD DATA A0
LOAD DATA 55
TO
TO
TO
TO
TO
(1)
(4)
WRITES ENABLED
ENTER DATA
PROTECT STATE
t
W
(2)
t
H
AT28C64B
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