Table of Contents
Features .....................................................................................
Pin Assignment...........................................................................
Pin Functions..............................................................................
Block Diagram ............................................................................
Absolute Maximum Ratings ........................................................
Recommended Operating Conditions .........................................
Pin Capacitance .........................................................................
Endurance ..................................................................................
DC Electrical Characteristics ......................................................
AC Electrical Characteristics.......................................................
Pin Functions..............................................................................
Operation....................................................................................
Physical Dimensions...................................................................
Ordering Information...................................................................
Characteristics............................................................................
Frequently Asked Questions......................................................
1
1
1
2
2
3
3
3
4
5
6
7
15
16
17
21
CMOS 2-WIRED SERIAL EEPROM
S-24C01A/02A/04A
The S-24C0XA is a series of 2-wired, 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.
The time for byte write and page write is the same, i. e., 1 msec. (max.)
during operation at 5 V
10%.
Features
Endurance:
Low power consumption
Standby: 1.0
A Max.
10
5
cycles/word
10 years
S-24C02A, S-24C04A
1 kbits
2 kbits
4 kbits
Operating: 0.4 mA Max.
0.3 mA Max.
Wide operating voltage range
(V
CC
=5.5 V)
(V
CC
=5.5 V)
(V
CC
=3.3 V)
Data retention:
Write protection:
S-24C01A:
S-24C02A:
S-24C04A:
Write:
Read:
Page write
2.5 to 5.5 V
1.8 to 5.5 V
8 bytes (S-24C01A, S-24C02A)
16 bytes (S-24C04A)
Sequential read capable
Pin Assignment
8-pin DIP
Top view
A0
A1
A2
GND
1
2
3
4
8
7
6
5
V
CC
TEST/WP
SCL
SDA
A0
A1
A2
GND
8-pin SOP
Top view
1
2
3
4
8
7
6
5
V
CC
TEST/WP
SCL
SDA
S-24C01ADP
-01
S-24C02ADP
-01
S-24C04ADP
-01
S-24C01AFJ
-
-01
S-24C02AFJ
-
-01
S-24C04AFJ
-
-01
*
differs depending on the package type.
differs depending on the packing form.
See
Dimensions and
Ordering Information.
Figure 1
Pin Functions
Table 1
Name
A0
A1
A2
GND
SDA
SCL
TEST/WP
V
CC
Pin Number
DIP SOP
1
1
2
2
3
3
4
4
5
5
6
6
7
8
7
8
Function
Address input (no connection in the S-24C04A*)
Address input
Address input
Ground
Serial data input/output
Serial clock input
TEST pin (S-24C01A): Connected to GND.
WP (Write Protection) pin (S-24C02A, S-24C04A):
* Connected to Vcc:
Protection valid
* Connected to GND: Protection invalid
Power supply
* When in use, connect to
GND or Vcc.
Seiko Instruments Inc.
1
CMOS 2-WIRED SERIAL EEPROM
S-24C01A/02A/04A
SCL
SDA
Block Diagram
TEST/WP*
Start/Stop
Detector
Serial Clock
Controller
LOAD
Device Address
Comparator
COMP
Data Register
LOAD
INC
Address
Counter
X
Decoder
V
CC
GND
High-Voltage Generator
A2
A1
A0
R/W
EEPROM
Y Decoder
Selector
D
IN
D
OUT
*
Data Output
ACK Output
Controller
S-24C02A or S-24C04A
Figure 2
Absolute Maximum Ratings
Table 2
Parameter
Power supply voltage
Input voltage
Output voltage
Storage temperature under bias
Storage temperature
Symbol
V
CC
V
IN
V
OUT
T
bias
T
stg
Ratings
-0.3 to +7.0
-0.3 to V
CC
+0.3
-0.3 to V
CC
-50 to +95
-65 to +150
Unit
V
V
V
°C
°C
2
Seiko Instruments Inc.
CMOS 2-WIRED SERIAL EEPROM
S-24C01A/02A/04A
Recommended Operating Conditions
Table 3
Parameter
Power supply voltage
Symbol
V
CC
Conditions
Read Operation
Write Operation
V
CC
=2.5 to 5.5V
High level input voltage
V
IH
V
CC
=1.8 to 2.5V
V
CC
=2.5 to 5.5V
Low level input voltage
Operating temperature
V
IL
T
opr
V
CC
=1.8 to 2.5V
—
Min.
1.8
2.5
0.7
V
CC
0.8
V
CC
0.0
0.0
-40
Typ.
—
—
—
—
—
—
—
Max.
5.5
5.5
V
CC
V
CC
0.3
V
CC
0.2
V
CC
+85
Unit
V
V
V
V
V
V
°C
Pin Capacitance
Table 4
(Ta=25°C, f=1.0 MHz, V
CC
=5 V)
Parameter
Input capacitance
Input/output capacitance
Symbol
C
IN
C
I / O
Conditions
V
IN
=0 V (SCL, A0, A1, A2, WP)
V
I / O
=0 V (SDA)
Min.
—
—
Typ.
—
—
Max.
10
10
Unit
pF
pF
Endurance
Table 5
Parameter
Endurance
Symbol
N
W
Min.
10
5
Typ.
—
Max.
—
Unit
cycles/word
Seiko Instruments Inc.
3
CMOS 2-WIRED SERIAL EEPROM
S-24C01A/02A/04A
DC Electrical Characteristics
Table 6
Parameter
Current consumption
(READ)
Current consumption
(PROGRAM)
Symbol
I
CC1
I
CC2
Conditions
f=100 kHz
f=100 kHz
V
CC
=4.5 V to 5.5 V
Min.
Typ.
Max.
0.4
2.0
V
CC
=2.5 to 4.5 V
Min.
Typ.
Max.
0.3
1.5
V
CC
=1.8 to 2.5 V
Min.
Typ.
Max.
0.2
mA
mA
Unit
—
—
—
—
—
—
—
—
—
—
—
—
—
Table 7
Parameter
Standby current
consumption
Input leakage
current
Output leakage
current
Low level output
voltage
Symbol
Conditions
V
CC
=4.5 V to 5.5 V
Min.
Typ.
Max.
1.0
V
CC
=2.5 to 4.5 V
Min.
Typ.
Max.
0.6
V
CC
=1.8 to 2.5 V
Min.
Typ.
Max.
0.4
Unit
A
I
SB
V
IN
=V
CC
or GND
—
—
—
—
—
—
1.5
—
0.1
—
—
—
—
—
—
1.5
—
0.1
—
—
—
—
—
—
1.5
—
0.1
I
LI
V
IN
=GND to V
CC
1.0
1.0
1.0
A
I
LO
V
OUT
=GND to V
CC
I
OL
=3.2 mA
0.1
1.0
0.4
0.3
0.1
5.5
0.1
1.0
0.4
0.3
0.1
4.5
0.1
1.0
A
V
OL
I
OL
=1.5 mA
I
OL
=100
A
—
—
—
—
—
—
—
—
—
—
—
—
—
0.5
0.1
2.5
V
V
V
V
Current address
retention voltage
V
AH
—
4
Seiko Instruments Inc.
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