S-93C46A Datasheet, PDF (3/53 Pages) Seiko Instruments Inc – CMOS SERIAL E2PROM

CMOS SERIAL E²PROM
S-93C46A/56A/66A
n Block Diagram
Memory array
Address
decoder
V_CC
GND
Data register
Output buffer
DO
DI
Mode decode logic
CS
SK
Clock generator
Figure 2
n Instruction Set
Instruction
Start
Bit
Table 2
Op
Code
S-93C46A
Address
S-93C56A
S-93C66A
Data
READ (Read data)
1
WRITE (Write data)
1
ERASE (Erase data)
1
WRAL (Write all)*2
1
ERAL (Erase all)*2
1
EWEN (Program enable)
1
EWDS (Program disable)
1
x : Doesn’t matter.
*1 : Addresses are continuously incremented.
*2 : Valid only at Vcc = 2.5 V to 5.5 V.
10
A₅ to A₀ XA₆ to A₀ A₇ to A₀ D₁₅ to D₀ Output*1
01
A₅ to A₀ XA₆ to A₀ A₇ to A₀ D₁₅ to D₀ Input
11
A₅ to A₀ XA₆ to A₀ A₇ to A₀

00
01xxxx 01xxxxxx 01xxxxxx D₁₅ to D₀ Input
00 10xxxx 10xxxxxx 10xxxxxx

00 11xxxx 11xxxxxx 11xxxxxx

00 00xxxx 00xxxxxx 00xxxxxx

n Absolute Maximum Ratings
Parameter
Power supply voltage
Input voltage
Output voltage
Storage temperature under bias
Storage temperature
Table 3
Symbol
V_CC
V_IN
V_OUT
T_bias
T_stg
Ratings
Unit
-0.3 to +7.0
V
-0.3 to V_CC+0.3
V
-0.3 to V_CC
V
-50 to +95
°C
-65 to +150
°C
2
Seiko Instruments Inc.