S-93C46A Datasheet, PDF (25/53 Pages) Seiko Instruments Inc – CMOS SERIAL E2PROM

Collection of Product FAQs
Author: Kano Tomoo
Date: 98/11/12 (Thursday) 10:17 (modified: 99/01/22 (Friday))
<Information Level>
A:
Public (Printing O.K.)
Index:
D: Technical terms
<Product>
Division name: 01 IC
Category 1: 12 Memory
Category 2:
Cal No.:
2. Serial EEPROM
S-93C46A/56A/66A
Related documents:
Question:
What about the basic term (start bit)?
Answer:
Start bit
→serial 3-wire bus EEPROM (a 2-wire bus type is used for the start condition)
When a command is issued the 3-wire bus EEPROM must obtain “1” from a DI input in order to
recognize this command (this is a rule).
Command
READ(Data read)
WRITE(Data write)
ERASE(Data erase)
EWEN(Program enable)
EWDS(Program disable)
<Remarks>
FAQ No.: 12015
Operation
Address
Start bit _{code S-29L130A S-29L220A S-29L330A}
Data
1
10
A₅-A₀ XA₆-A₀ A₇-A₀ D₁₅-D₀ Output*
1
01
A₅-A₀ XA₆-A₀ A₇-A₀ D₁₅-D₀ Input
1
11
A₅-A₀ XA₆-A₀ A₇-A₀
-
1 00 11xxxx 11xxxxxx 11xxxxxx
-
1 00 00xxxx 00xxxxxx 00xxxxxx
-
24