Rev. 2.2
CMOS 2-WIRE SERIAL EEPROM
S-24C01B/02B/04B
The S-24C01B/02B/04B are series of 2-wire, low power 1K/2K/4K-bit
EEPROMs with a wide operating range. They are organized as 128-
word×8-bit, 256-word×8-bit, and 512-word×8-bit, respectively. Each is
capable of page write, and sequential read.
Features
Low power consumption
Standby:
1.0
µA
Max. (V
CC
=5.5 V)
Operating: 0.8 mA Max. (V
CC
=5.5 V)
0.3 mA Max. (V
CC
=3.3 V)
2.0 to 5.5 V
Wide operating voltage range
Page write
8 bytes (S-24C01B, S-24C02B)
16 bytes (S-24C04B)
Endurance:
Data retention:
Write protection:
S-24C01B:
S-24C02B:
S-24C04B:
10 cycles/word
10 years
S-24C01B : 100%
S-24C02B/04B : 50%
1 Kbits
2 Kbits
4 Kbits
6
Sequential read capable
400KHz (V
CC
=5V±10%)
Pin Assignment
8-pin DIP
Top view
NC
NC
NC
GND
1
2
3
4
8
7
6
5
V
CC
WP
SCL
SDA
NC
NC
NC
GND
8-pin SOP
Top view
1
2
3
4
8
7
6
5
V
CC
WP
SCL
SDA
V
CC
WP
SCL
SDA
8pin MSOP
Top view
1
2
3
4
8
7
6
5
NC
NC
NC
GND
S-24C01BFJ
S-24C02BFJ
S-24C04BFJ
S-24C01BMFN
S-24C02BMFN
S-24C04BMFN
S-24C01BDP-1A
S-24C02BDP-1A
S-24C04BDP-1A
Figure 1
Pin Functions
Table 1
Name
Pin Number
DIP, SOP
NC
NC
NC
GND
SDA
SCL
WP
1
2
3
4
5
6
7
MSOP
Function
8
7
6
5
4
3
2
No Connection*
No Connection*
No Connection*
Ground
Serial data input/output
Serial clock input
Write Protection pin
Connected to Vcc: Protection valid
Connected to GND: Protection invalid
Power supply
* These pins can be
connected to either
Vcc or GND.
V
CC
8
1
Seiko Instruments Inc.
1
CMOS 2-WIRE SERIAL EEPROM
S-24C01B/02B/04B
T
AC Electrical Characteristics
V
CC
Table 8
Measurement Conditions
Input pulse voltage
Input pulse rising/falling time
Output judgment voltage
Output load
0.1×V
CC
to 0.9×V
CC
20 ns
0.5×V
CC
100 pF+ Pullup resistance 1.0 Kٶ
R=1.0K
SDA
C=100pF
Figure 3
Output Load Circuit
Table 9
Parameter
Symbol
V
CC
=4.5V to 5.5V
Min.
SCL clock frequency
SCL clock time “L”
SCL clock time “H”
SDA output delay time
SDA output hold time
Start condition setup time
Start condition hold time
Data input setup time
Data input hold time
Stop condition setup time
SCL
•
SDA rising time
SCL
•
SDA falling time
Bus release time
Noise suppression time
f
SCL
t
LOW
t
HIGH
t
AA
t
DH
t
SU.STA
t
HD.STA
t
SU.DAT
t
HD.DAT
t
SU.STO
t
R
t
F
t
BUF
t
I
0
1.0
0.9
0.1
50
0.6
0.6
100
0
0.6
Typ.
Max.
400
V
CC
=2.0V to 4.5V
Min.
0
4.7
4.0
0.1
100
4.7
4.0
200
0
4.7
Typ.
Max.
100
KHz
µs
µs
µs
ns
µs
µs
ns
ns
µs
µs
µs
µs
ns
Unit
--
--
1.3
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
0.9
--
--
--
--
--
--
0.3
0.3
--
50
--
--
4.7
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
3.5
--
--
--
--
--
--
1.0
0.3
--
100
t
HIGH
t
F
SCL
t
HD.DAT
t
LOW
t
R
t
SU.STA
t
HD.STA
t
SU.DAT
t
SU.STO
SDA IN
t
AA
t
DH
t
BUF
SDA OUT
Figure 4
Bus Timing
Seiko Instruments Inc.
5
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