s-93a86a Seiko Instruments Inc., s-93a86a Datasheet - Page 3

• Manufacturer Part Number: s-93a86a
• Description: Cmos Serial E2prom
• Manufacturer: Seiko Instruments Inc.

Remark x: Doesn’t matter
Rev.2.1
READ (Read data)
WRITE (Write data)
ERASE (Erase data)
WRAL (Write all)
ERAL (Erase all)
EWEN (Write enable)
EWDS (Write disable)
*1. When the 16-bit data in the specified address has been output, the data in the next address is output.
Block Diagram
Instruction Sets
SK input clock
Instruction
CS
SK
DI
_00
Start Bit
1
1
1
1
1
1
1
1
Operation Code
2
1
0
1
0
0
0
0
Mode decode logic
monitoring circuit
Clock generator
Memory array
Data register
Clock pulse
3
0
1
1
0
0
0
0
Seiko Instruments Inc.
A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 Output
A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 Input
A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
4
0
1
1
0
Table 2
Figure 2
5
1
0
1
0
6
x
x
x
x
7
x
x
x
x
Address
Voltage detector
Address
decoder
8
x
x
x
x
9 10 11 12 13
x
x
x
x
Output buffer
x
x
x
x
x
x
x
x
CMOS SERIAL E
x
x
x
x
VCC
GND
x
x
x
x
D15 to D0 Input
14 to 29
S-93A86A
Data
DO




2
PROM
*1
3