s-93c46a Seiko Instruments Inc., s-93c46a Datasheet - Page 25

• Manufacturer Part Number: s-93c46a
• Description: Cmos Serial E2prom
• Manufacturer: Seiko Instruments Inc.

Collection of Product FAQs
Author: Kano Tomoo
<Information Level>
<Product>
Related documents:
Question:
Answer:
<Remarks>
A:
Index:
Division name: 01 IC
Category 1:
Category 2:
Cal No.:
What about the basic term (start bit)?
Start bit
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).
FAQ No.: 12015
READ(Data read)
WRITE(Data write)
ERASE(Data erase)
EWEN(Program enable)
EWDS(Program disable)
Command
S-93C46A/56A/66A
Public (Printing O.K.)
D: Technical terms
12 Memory
2. Serial EEPROM
serial 3-wire bus EEPROM (a 2-wire bus type is used for the start condition)
Date: 98/11/12 (Thursday) 10:17 (modified: 99/01/22 (Friday))
Start bit
1
1
1
1
1
Operation
code
10
01
11
00
00
24
S-29L130A
11xxxx
00xxxx
A
A
A
5
5
5
-A
-A
-A
0
0
0
11xxxxxx 11xxxxxx
00xxxxxx 00xxxxxx
S-29L220A
Address
XA
XA
XA
6
6
6
-A
-A
-A
0
0
0
S-29L330A
A
A
A
7
7
7
-A
-A
-A
0
0
0
D
D
15
15
-D
-D
0
0
Data
Output*
Input
-
-
-