79LV2040RPFE-20 MAXWELL [Maxwell Technologies], 79LV2040RPFE-20 Datasheet - Page 11

• Manufacturer Part Number: 79LV2040RPFE-20
• Description: 20 Megabit (512K x 40-Bit) Low Voltage EEPROM MCM
• Manufacturer: MAXWELL [Maxwell Technologies]

79LV2040
20 Megabit (512K x 40-Bit) EEPROM MCM
F
7. S
D
P
T
W
(1) (
)
IGURE
OFTWARE
ATA
ROTECTION
IMING
AVEFORM
IN PROTECTION MODE
F
8. S
D
P
W
(2) (
-
)
IGURE
OFTWARE
ATA
ROTECTION
AVEFORM
IN NON
PROTECTION MODE
EEPROM A
N
PPLICATION
OTES
This application note describes the programming procedures for the EEPROM modules and with details of various
techniques to preserve data integrity.
Automatic Page Write
Page-mode write feature allows 1 to 128 bytes of data to be written into the EEPROM in a single write cycle. Loading
the first byte of data, the data load window opens 30µ s for the second byte. In the same manner each additional byte
of data can be loaded within 30µ s of the preceding falling edge of either WE or CE. When CE and WE are kept high
for 100µ s after data input, the EEPROM enters the write mode automatically and the data input is written into the
EEPROM.
WE, CE Pin Operation
During a write cycle, addresses are latched by the falling edge of WE or CE, and data is latched by the rising edge of
WE or CE.
All data sheets are subject to change without notice
11
09.07.05 Rev 1
©2005 Maxwell Technologies
All rights reserved