CMOS SERIAL E2PROM
S-93C46A/56A/66A
2
The S-93C46A/56A/66A is high speed, low power 1K/2K/4K-bit E 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.
n
Features
Ÿ Endurance : 106 cycles/word
Ÿ Low power consumption
Standby : 1.0 mA Max. (VCC=5.5 V)
Operating : 0.8 mA Max. (VCC=5.5 V)
: 0.4 mA Max. (VCC=2.5 V)
Ÿ Data retention : 10 years
Ÿ S-93C46A : 1K bits NM93CS46 instruction code compatible
Ÿ S-93C56A : 2K bits NM93CS56 instruction code compatible
Ÿ S-93C66A : 4K bits NM93CS66 instruction code compatible
Ÿ Wide operating voltage range
Read/Write : 1.8 to 5.5 V
Ÿ Sequential read capable
n
Pin Assignment
8-pin TSSOP
Top view
8-pin DIP
Top view
8-pin SOP1
Top view
8-pin SOP2
Top view
CS
SK
DI
VCC
NC
1
8
CS
SK
1
8
7
6
5
TEST
GND
DO
1
2
8
7
NC
VCC
CS
SK
VCC
CS
SK
DI
1
2
3
4
8
VCC
2
3
4
2
7
NC
TEST
GND
7
6
5
DO
NC
3
4
6
5
3
4
6
5
DI
TEST
GND
S-93C46AFT
S-93C56AFT
S-93C66AFT
DO
DI
TEST
GND
S-93C46ADFJ
S-93C56ADFJ
S-93C66ADFJ
S-93C46AFJ
S-93C56AFJ
S-93C66AFJ
DO
8-pin MSOP
Top view
S-93C46ADP
S-93C56ADP
S-93C66ADP
VCC
CS
SK
DI
1
2
3
4
8
7
6
5
NC
TEST
GND
DO
S-93C46AMFN
S-93C56AMFN
S-93C66AMFN
* See n Dimensions
Figure 1
Table 1
n
Pin Functions
Pin Number
Name
Function
DIP
1
SOP1 SOP2 TSSOP MSOP
CS
SK
3
4
5
6
7
1
2
3
4
5
1
2
3
4
5
8
7
6
5
4
Chip select input
Serial clock input
Serial data input
Serial data output
Ground
2
DI
3
DO
GND
4
5
Test pin (normally kept open)
6
8
6
6
3
TEST
(can be connected to GND or Vcc)
No Connection
NC
7
8
1
2
7
8
7
8
2
1
VCC
Power supply
Seiko Instruments Inc.
1
SII [ SEIKO INSTRUMENTS INC ]
