Rev. 2.2
_10
CMOS SERIAL E
2
PROM
S-93C46A/56A/66A
The S-93C46A/56A/66A is high speed, low power 1K/2K/4K-bit E
2
PROM with
a wide operating voltage range. It is organized as 64-word
×16-bit,
128-
word×16-bit, 256-word×16-bit, respectivly. Each is capable of sequential
read, at which time addresses are automatically incremented in 16-bit blocks.
The instruction code is compatible with the NM93CS46/56/66.
Features
Low power consumption
Standby : 1.0
µ
A Max. (V
CC
=5.5 V)
Operating : 0.8 mA Max. (V
CC
=5.5 V)
: 0.4 mA Max. (V
CC
=2.5 V)
Wide operating voltage range
Read/Write : 1.8 to 5.5 V
Sequential read capable
Endurance : 10 cycles/word
6
S-93C46A : 1K bits NM93CS46 instruction code compatible
S-93C56A : 2K bits NM93CS56 instruction code compatible
S-93C66A : 4K bits NM93CS66 instruction code compatible
Pin Assignment
8-pin DIP (PKG drawing code : DP008-A,DP008-C,DP008-E)
8-pin SOP (PKG drawing code : FJ008-D,FJ008-E)
8-pin MSOP (PKG drawing code : FN008-A)
8-pin TSSOP (PKG drawing code : FT008-B)
Pin Assignment
8-pin DIP
Top view
CS
SK
DI
DO
ED
PR
OD
UC
8-pin SOP2
Top view
1
2
3
4
8
7
6
5
T
Data retention : 10 years
8-pin SOP1
Top view
8
7
6
5
VCC
NC
TEST
GND
NC
VCC
8-pin TSSOP
Top view
VCC
NC
TEST
GND
CS
SK
DI
DO
TI
NU
1
2
3
4
1
2
3
4
8
7
6
5
TEST
GND
DO
DI
CS
SK
DI
DO
CS
SK
1
2
3
4
S-93C46AFT
S-93C56AFT
S-93C66AFT
8
7
6
5
VCC
NC
TEST
GND
ON
S-93C46AFJ
S-93C56AFJ
S-93C66AFJ
S-93C46ADFJ
S-93C56ADFJ
S-93C66ADFJ
VCC
NC
TEST
GND
S-93C46ADP-1A
S-93C56ADP-1A
S-93C66ADP-1A
8-pin MSOP
Top view
1
2
3
4
8
7
6
5
CS
SK
DI
DO
SC
DI
* See
Dimensions
Pin Functions
Figure 1
Table 1
Pin Number
S-93C46AMFN
S-93C56AMFN
S-93C66AMFN
Name
DIP
CS
SK
DI
DO
GND
TEST
NC
V
CC
1
2
3
4
5
6
7
8
SOP1
3
4
5
6
7
8
1
2
SOP2
1
2
3
4
5
6
7
8
TSSOP MSOP
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
Function
Chip select input
Serial clock input
Serial data input
Serial data output
Ground
Test pin (normally kept open)
(can be connected to GND or Vcc)
No Connection
Power supply
Seiko Instruments Inc.
1
CMOS SERIAL E
2
PROM
S-93C46A/56A/66A
Rev. 2.2
_10
Block Diagram
Memory array
Address
decoder
V
CC
GND
Data register
DI
Mode decode logic
CS
Output buffer
DO
SK
Clock generator
Instruction Set
Table 2
Instruction
Start
Bit
Op
Code
S-93C46A
READ
WRITE
(Read data)
(Write data)
1
1
1
1
1
1
10
01
11
00
A
5
to A
0
A
5
to A
0
A
5
to A
0
01xxxx
OD
UC
Address
S-93C56A
XA
6
to A
0
XA
6
to A
0
XA
6
to A
0
01xxxxxx
10xxxxxx
11xxxxxx
00xxxxxx
Ratings
V
IN
-0.3 to V
CC
-50 to +95
Figure 2
T
Data
PR
S-93C66A
A
7
to A
0
A
7
to A
0
A
7
to A
0
01xxxxxx
10xxxxxx
11xxxxxx
00xxxxxx
D
15
to D
0
Output*1
D
15
to D
0
Input
WRAL
ERAL
EWEN
EWDS
x :
*1 :
*2 :
(Write all)*2
(Erase all)*2
(Program enable)
(Program disable)
ED
ERASE (Erase data)
D
15
to D
0
Input
00
00
10xxxx
Doesn’t matter.
Valid only at Vcc = 2.5 V to 5.5 V.
Addresses are continuously incremented.
Absolute Maximum Ratings
SC
ON
Parameter
TI
NU
11xxxx
00xxxx
1
00
Table 3
Symbol
V
CC
Unit
V
V
V
°C
°C
DI
Power supply voltage
Input voltage
Output voltage
Storage temperature under bias
Storage temperature
-0.3 to +7.0
-0.3 to V
CC
+0.3
V
OUT
T
bias
T
stg
-65 to +150
2
Seiko Instruments Inc.
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