S-25C128A
www.ablic.com
www.ablicinc.com
© ABLIC Inc., 2009-2015
SPI SERIAL E
2
PROM
Rev.4.2
_03_H
The S-25C128A is a SPI serial E
2
PROM which operates at high speed, with low current consumption and the wide range
operation. The S-25C128A has the capacity of 128 K-bit and the organization of 16384 words
8-bit. Page write and
sequential read are available.
Features
Operating voltage range:
Read
1.6 V to 5.5 V
Write
1.7 V to 5.5 V
5.0 MHz (V
CC
= 2.5 V to 5.5 V)
5.0 ms max.
Operation frequency:
Write time:
SPI mode (0, 0) and (1, 1)
Page write:
64 bytes / page
Sequential read
Write protect:
Software, Hardware
Protect area:
25%, 50%, 100%
Monitors write to the memory by a status register
Function to prevent malfunction by monitoring clock pulse
Write protect function during the low power supply voltage
CMOS schmitt input（ CS , SCK, SI,
WP
, HOLD
）
Endurance:
10
6
cycles / word
*1
(Ta =
25°C)
Data retention:
100 years (Ta =
25°C)
Memory capacity:
128 K-bit
Initial delivery state:
FFh, SRWD = 0, BP1 = 0, BP0 = 0
Operation temperature range:
Ta =
40°C
to
85C
*2
Lead-free (Sn 100%), halogen-free
*1.
For each address (Word: 8-bit)
*2.
Refer to “
Product Name Structure”
for details.
Packages
8-Pin SOP (JEDEC)
8-Pin TSSOP
Caution This product is intended to use in general electronic devices such as consumer electronics, office
equipment, and communications devices. Before using the product in medical equipment or
automobile equipment including car audio, keyless entry and engine control unit, contact to
ABLIC Inc. is indispensable.
1
SPI SERIAL E
2
PROM
S-25C128A
Absolute Maximum Ratings
Table 3
Item
Power supply voltage
Input voltage
Output voltage
Operation ambient temperature
Storage temperature
Symbol
V
CC
V
IN
V
OUT
T
opr
T
stg
Absolute Maximum Rating
0.3
to
6.5
0.3
to
6.5
0.3
to V
CC
0.3
40
to
85
65
to
150
Rev.4.2
_03_H
Unit
V
V
V
°C
°C
Caution The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
Recommended Operating Conditions
Table 4
Item
Power supply voltage
High level input voltage
Low level input voltage
Symbol
V
CC
V
IH
V
IL
Condition
Read Operation
Write Operation
V
CC
= 1.6 V to 5.5 V
V
CC
= 1.6 V to 5.5 V
Ta =
40°C
to
85°C
Min.
Max.
1.6
1.7
0.7
V
CC
0.3
5.5
5.5
V
CC
1.0
0.3
V
CC
Unit
V
V
V
V
Pin Capacitance
Table 5
Item
Input capacitance
Output capacitance
Symbol
C
IN
C
OUT
Condition
V
OUT
= 0 V (SO)
(Ta =
25°C,
f = 1.0 MHz, V
CC
= 5.0 V)
Min.
Max.
Unit
8
10
pF
pF
V
IN
= 0 V ( CS , SCK, SI,
WP
, HOLD )
Endurance
Table 6
Item
Symbol
Endurance
N
W
*1.
For each address (Word: 8-bit)
Operation Ambient Temperature
Ta =
25°C
Min.
10
6
Max.
Unit
cycles / word
*1
Data Retention
Table 7
Item
Data retention
Symbol
Operation Ambient Temperature
Ta =
25°C
Min.
100
Max.
Unit
year
4
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