S-93C56A SII [Seiko Instruments Inc], S-93C56A Datasheet - Page 49
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S-93C56A
Manufacturer Part Number
S-93C56A
Description
CMOS SERIAL E2PROM
Manufacturer
SII [Seiko Instruments Inc]
Datasheet
1.S-93C56A.pdf
(53 pages)
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Collection of Product FAQs
Author: Kano Tomoo
<Information level>
<Product>
Related documents:
Question:
Answer:
A:
Index:
Division name: 01 IC
Category 1:
Category 2:
Cal No.:
What are the basic operation codes?
[Terms required to understand EEPROM data sheets (1)] Basic commands
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-
-
-
-
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[Note]
When the power to the EEPROM is turned on, the internal circuit of the IC is reset and the program
disable mode is entered. Thus, following power-on, the program enable command must be entered in
order to write data.
Data read, READ
Reads data from a specified address
Data write, WRITE or PROGRAM
Writes data to a specified address
Data erase, ERASE
Erases data at a specified address (all “1”’s)
Chip write, WRAL
Writes the same (word) data in all address spaces
Chip erase, ERAL
Erases data in all address spaces (all “1”’s)
Program disable, EWDS or PDS
Prohibits write operations (WRITE), and prevents false-writes caused by noise or uncontrollable
running of the CPU
Program enable, EWES or PEN
Enables write operations (WRITE)
Public (Printing O.K.)
D: Technical Terms
12 Memory
2. Serial EEPROM
Overall
Date: 98/11/12 (Thursday) 10:17 (modified: 99/01/13(Wednesday))
48