S-93L46A Datasheet, PDF (5/48 Pages) Seiko Instruments Inc – LOW VOLTAGE OPERATION CMOS SERIAL E2PROM

Rev.3.1_00
„ Block Diagram
LOW VOLTAGE OPERATION CMOS SERIAL E²PROM
S-93L46A/56A/66A
Memory array
Address
decoder
VCC
GND
Data register
Output buffer
DO
DI
Mode decode logic
CS
Clock pulse
monitoring circuit
Voltage detector
SK
Clock generator
Figure 7
„ Instruction Sets
1. S-93L46A
Table 7
Instruction
SK input clock
Operation
Start Bit
Code
Address
1
23456789
Data
10 to 25
READ (Read data)
1
1 0 ^{A5 A4 A3 A2 A1 A0} D15 to D0 Output^*1
WRITE (Write data)
1
0 1 ^{A5 A4 A3 A2 A1 A0} D15 to D0 Input
ERASE (Erase data)
1
1 1 ^{A5 A4 A3 A2 A1 A0}

WRAL (Write all)
1
0 0 0 1 ^{x x x x} D15 to D0 Input
ERAL (Erase all)
1
00 10 ^{x x x x}

EWEN (Write enable)
1
00 11 ^{x x x x}

EWDS (Write disable)
1
00 00 ^{x x x x}

*1. When the 16-bit data in the specified address has been output, the data in the next address is output.
Remark x: Don’t care
Seiko Instruments Inc.
5