S-93A46A SII [Seiko Instruments Inc], S-93A46A Datasheet - Page 3

• Manufacturer Part Number: S-93A46A
• Description: CMOS SERIAL E2PROM
• Manufacturer: SII [Seiko Instruments Inc]

*1. When the 16-bit data in the specified address has been output, the data in the next address is output.
Remark x: Doesn’t matter
Rev.2.1
Block Diagram
Instruction Sets
1. S-93A46A
EWDS (Write disable)
EWEN (Write enable)
ERASE (Erase data)
CS
SK
WRITE (Write data)
DI
READ (Read data)
WRAL (Write all)
ERAL (Erase all)
_00
SK input clock
Instruction
Start Bit
Mode decode logic
monitoring circuit
Clock generator
1
1
1
1
1
1
1
1
Memory array
Data register
Clock pulse
Seiko Instruments Inc.
Operation Code
2
1
0
1
0
0
0
0
Figure 2
Table 2
3
0
1
1
0
0
0
0
A5 A4 A3 A2 A1 A0
A5 A4 A3 A2 A1 A0
A5 A4 A3 A2 A1 A0
4
0
1
1
0
Voltage detector
Address
decoder
5
1
0
1
0
Address
6
x
x
x
x
Output buffer
7
x
x
x
x
CMOS SERIAL E
8
x
x
x
x
VCC
GND
S-93A46A/56A/66A
9
x
x
x
x
D15 to D0 output
D15 to D0 input
D15 to D0 input
10 to 25
Data
DO
2
PROM
*1
3