Rev.1.1
CMOS 2-WIRED SERIAL EEPROM
S-24C08A/16A
The S-24C08A/16A is a series of 2-wired, low power 8K/16K-bit
EEPROMs with a wide operating range. They are organized as 1K-word
×
8-bit, 2K-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%.
n
Features
•
Endurance:
•
Data retention:
•
S-24C08A:
•
S-24C16A:
•
Low power consumption
Standby:
1.0
µ
A Max. (V
CC
=5.5 V)
Operating: 0.8 mA Max. (V
CC
=5.5 V f=400kHz)
0.4 mA Max. (V
CC
=4.5 V f=100kHz)
•
Wide operating voltage range
Write:
2.5 to 5.5 V
Read:
1.8 to 5.5 V
•
Page write
16 bytes (S-24C08A, S-24C16A)
•
Sequential read capable
10
5
cycles/word
10 years
8 kbits
16 kbits
•
Write protection (S-24C08A, S-24C16A)
*
The data sheet of 1K/2K/4K-bit products are available.
(S-24C0XA Series)
n
Pin Assignment
8-pin DIP
Top view
A0
A1
A2
GND
1
2
3
4
8
7
6
5
V
CC
WP
SCL
SDA
A0
A1
A2
GND
8-pin SOP
Top view
1
2
3
4
8
7
6
5
V
CC
WP
SCL
SDA
S-24C08AFJΧ-χχ-01
S-24C16AFJΧ-χχ-01
*
Χ
differs depending on the package type.
χχ
differs depending on the packing form.
See
n
Dimensions and
n
Ordering Information.
S-24C08ADPΧ-01
S-24C16ADPΧ-01
Figure 1
n
Pin Functions
Table 1
Name
A0
A1
A2
GND
SDA
SCL
WP
V
CC
Pin Number
Function
DIP SOP
1
1
NC in the S-24C08A (no connection)*,
Connected to GND in the S-24C16A
2
3
4
5
6
7
8
2
3
4
5
6
7
8
Connected to GND
Address input in the S-24C08A
Connected to GND in the S-24C16A
Ground
Serial data input/output
Serial clock input
WP (Write Protection) pin
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-24C08A/16A Series
n
Recommended Operating Conditions
Table 3
Parameter
Power supply voltage
High level input voltage
Low level input voltage
Operating temperature
Symbol
V
CC
V
IH
V
IL
T
opr
Conditions
Read Operation
Write Operation
V
CC
=2.5 to 5.5V
V
CC
=1.8 to 2.5V
V
CC
=2.5 to 5.5V
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
n
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
n
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-24C08A/16A Series
n
AC Electrical Characteristics
V
CC
R=1.0k
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 kΩ
SDA
C=100pF
Figure 3
Output Load Circuit
Table 9
V
CC
=1.8V to 5.5V
Parameter
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
Symbol
Min.
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
4.7
4.0
0.3
0.3
4.7
4.0
100
0
4.7
Typ.
Max.
100
Min.
0
1.3
0.6
0.3
0.3
0.6
0.6
50
0
0.6
Typ.
Max.
400
kHz
µs
µs
µs
µs
µs
µs
ns
ns
µs
µs
µs
µs
ns
V
CC
=4.5V to 5.5V
Unit
—
—
4.7
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3.5
—
—
—
—
—
—
1.0
0.3
—
—
1.3
—
100
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1.0
—
—
—
—
—
—
0.3
0.3
—
100
t
F
SCL
t
HIGH
t
LOW
t
R
t
SU.STA
t
HD.STA
t
HD.DAT
t
SU.DAT
t
SU.STO
SDA IN
t
AA
SDA OUT
t
DH
t
BUF
Figure 4
Bus Timing
Seiko Instruments Inc.
5
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