S-25A080A/160A/320A, S-25A080B/160B/320B
www.sii-ic.com
125°C OPERATION
SPI SERIAL E2PROM FOR AUTOMOTIVE
© Seiko Instruments Inc., 2008-2011 Rev.4.0_00
Seiko Instruments Inc. 1
This IC is a SPI serial E2PROM which operates under the high temperature, at high speed, with the wide range operation for
automotive components. This IC has the capacity of 8 K-bit, 16 K-bit, 32 K-bit and the organization of 1024 words × 8-bit,
2048 words × 8-bit, 4096 words × 8-bit. Page write and Sequential read are available.
Caution Before using the product in automobile control unit or medical equipment, contact to SII is indispensable.
Features
Operating voltage range
Read: 2.5 V ~ 5.5 V
Write: 2.5 V ~ 5.5 V
Operation frequency: 6.5 MHz max.
Write time
S-25A080A/160A/320A: 4.0 ms max.
S-25A080B/160B/320B: 5.0 ms max.
SPI mode (0, 0) and (1, 1)
Page write: 32 bytes / page
Sequential read
Write protect: Software, Hardware
Protect area: 25%, 50%, 100%
Monitoring of a write memory state by the 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*1
S-25A080A/160A/320A: 106 cycle / word*2 (Ta = +25°C)
5 × 105 cycle / word*2 (Ta = +125°C)
S-25A080B/160B/320B: 106 cycle / word*2 (Ta = +25°C)
3 × 105 cycle / word*2 (Ta = +125°C)
Data retention: 100 years (Ta = +25°C)
50 years (Ta = +125°C)
Memory capacity
S-25A080A, S-25A080B: 8 K-bit
S-25A160A, S-25A160B: 16 K-bit
S-25A320A, S-25A320B: 32 K-bit
Initial shipment data: FFh, SRWD = 0, BP1 = 0, BP0 = 0
Burn-in specification: Wafer level burn-in
Lead-free (Sn 100%), halogen-free*3
*1. Refer to " Endurance" for details.
*2. For each address (Word: 8-bit)
*3. Refer to " Product Name Structure" for details.
Packages
8-Pin SOP (JEDEC)
1
4
5
8
(5.0 × 6.0 × t1.75 mm)
8-Pin TSSOP
1
4
5
8
(3.0 × 6.4 × t1.1 mm)
TMSOP-8
14
5
8
(2.9 × 4.0 × t0.8 mm)
Remark Refer to "3. Product name list" in " Product Name Structure" for details of package and product.
125°C OPERATION SPI SERIAL E2PROM FOR AUTOMOTIVE
S-25A080A/160A/320A, S-25A080B/160B/320B Rev.4.0_00
Seiko Instruments Inc.
2
Block Diagram
Mode
Decoder
Status RegisterAddress Register
Data Register
WP
CS
HOLD
SI
SCK
SO
VCC
GND
Memory
Cell
Array
Status
Memory Cell Array
Voltage Detector
Read Circuit
Clock Counter
Y Decoder
X Decoder
Input Control Circuit
Output
Control
Circuit
Step-up Circuit
Page Latch
Figure 1
125°C OPERATION SPI SERIAL E2PROM FOR AUTOMOTIVE
Rev.4.0_00 S-25A080A/160A/320A, S-25A080B/160B/320B
Seiko Instruments Inc. 3
Product Name Structure
1. Product name
1. 1 S-25A080A/160A
S-25AxxxA 0A xxxx U D
Fixed
Environmental code
U: Lead-free (Sn 100%), halogen-free
Package name (abbreviation) and IC packing specification*1
J8T2: 8-Pin SOP (JEDEC), Tape
T8T2: 8-Pin TSSOP, Tape
Fixed
Product name
S-25A080A: 8 K-bit
S-25A160A: 16 K-bit
1. 2 S-25A320A
S-25A320A 0A J8T2 U D
Fixed
Environmental code
U: Lead-free (Sn 100%), halogen-free
Package name (abbreviation) and IC packing specification*1
J8T2: 8-Pin SOP (JEDEC), Tape
Fixed
Product name
S-25A320A: 32 K-bit
1. 3 S-25A080B/160B/320B
S-25AxxxB 0A xxxx U 3
Fixed
Environmental code
U: Lead-free (Sn 100%), halogen-free
Package name (abbreviation) and IC packing specification*1
J8T2: 8-Pin SOP (JEDEC), Tape
T8T2: 8-Pin TSSOP, Tape
K8T2: TMSOP-8, Tape
Fixed
Product name
S-25A080B: 8 K-bit
S-25A160B: 16 K-bit
S-25A320B: 32 K-bit
*1. Refer to t he tape drawing.
Remark This IC is wafer level burn-in specification.
125°C OPERATION SPI SERIAL E2PROM FOR AUTOMOTIVE
S-25A080A/160A/320A, S-25A080B/160B/320B Rev.4.0_00
Seiko Instruments Inc.
4
2. Packages
Table 2 Package Drawing Codes
Package Name Dimension Tape Reel
8-Pin SOP (JEDEC) FJ008-A-P-SD FJ008-D-C-SD FJ008-D-R-S2
8-Pin TSSOP FT008-A-P-SD FT008-E-C-SD FT008-E-R-S2
TMSOP-8 FM008-A-P-SD FM008-A-C-SD FM008-A-R-SD
3. Product name list
Table 3
Product Name Capacit y Package Quantity
S-25A080A0A-J8T2UD 8 K bit 8-Pin SOP (JEDEC) 2000 pcs / reel
S-25A080A0A-T8T2UD 8 K bit 8-Pin TSSOP 3000 pcs / reel
S-25A160A0A-J8T2UD 16 K bit 8-Pin SOP (JEDEC) 2000 pcs / reel
S-25A160A0A-T8T2UD 16 K bit 8-Pin TSSOP 3000 pcs / reel
S-25A320A0A-J8T2UD 32 K bit 8-Pin SOP (JEDEC) 2000 pcs / reel
S-25A080B0A-J8T2U3 8 K bit 8-Pin SOP (JEDEC) 4000 pcs / reel
S-25A080B0A-T8T2U3 8 K bit 8-Pin TSSOP 4000 pcs / reel
S-25A080B0A-K8T2U3 8 K bit TMSOP-8 4000 pcs / reel
S-25A160B0A-J8T2U3 16 K bit 8-Pin SOP (JEDEC) 4000 pcs / reel
S-25A160B0A-T8T2U3 16 K bit 8-Pin TSSOP 4000 pcs / reel
S-25A160B0A-K8T2U3 16 K bit TMSOP-8 4000 pcs / reel
S-25A320B0A-J8T2U3 32 K bit 8-Pin SOP (JEDEC) 4000 pcs / reel
S-25A320B0A-T8T2U3 32 K bit 8-Pin TSSOP 4000 pcs / reel
S-25A320B0A-K8T2U3 32 K bit TMSOP-8 4000 pcs / reel
Remark 1. Please contact our sales office for product s with product name structure other than those
specified above.
2. This IC is wafer level burn-in specification.
125°C OPERATION SPI SERIAL E2PROM FOR AUTOMOTIVE
Rev.4.0_00 S-25A080A/160A/320A, S-25A080B/160B/320B
Seiko Instruments Inc. 5
Pin Configurations
1. 8-Pin SOP (JEDEC)
Table 3
Pin No. Symbol Description
1 CS *1 Chip select input
2 SO Serial data output
3 WP *1 Write protect input
4 GND Ground
5 SI*1 Serial data input
6 SCK*1 Serial clock input
7 HOLD*1 Hold input
8 VCC Power supply
7
6
5
8
2
3
4
1
Top view
Figure 2
2. 8-Pin TSSOP
Table 4
Pin No. Symbol Description
1 CS *1 Chip select input
2 SO Serial data output
3 WP *1 Write protect input
4 GND Ground
5 SI*1 Serial data input
6 SCK*1 Serial clock input
7 HOLD*1 Hold input
8 VCC Power supply
7
6
5
8
2
3
4
1
Top view
Figure 3
3. TMSOP-8
Table 5
Pin No. Symbol Description
1 CS *1 Chip select input
2 SO Serial data output
3 WP *1 Write protect input
4 GND Ground
5 SI*1 Serial data input
6 SCK*1 Serial clock input
7 HOLD*1 Hold input
8 VCC Power supply
7
6
5
8
2
3
4
1
Top view
Figure 4
*1. Do not use it in "High-Z".
125°C OPERATION SPI SERIAL E2PROM FOR AUTOMOTIVE
S-25A080A/160A/320A, S-25A080B/160B/320B Rev.4.0_00
Seiko Instruments Inc.
6
Absolute Maximum Ratings
Table 6 Absolute Maximum Rating
Item Symbol
S-25A080A/160A/320A S-25A080B/160B/320B Unit
Power supply voltage VCC 0.3 to +7.0 0.3 to +6.5 V
Input voltage VIN 0.3 to +7.0 0.3 to +6.5 V
Output voltage VOUT 0.3 to VCC + 0.3 V
Operation ambient temperature Topr 40 to +125 °C
Storage temperature T stg 65 to +150 °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 7 Ta = 40°C to +125°C
Item Symbol Condition Min. Max.
Unit
Read 2.5 5.5 V
Power supply voltage VCC Write 2.5 5.5 V
High level input voltage VIH V
CC = 2.5 V to 5.5 V 0.7 × VCC V
CC + 1.0 V
Low level input voltage VIL V
CC = 2.5 V to 5.5 V 0.3 0.3 × VCC V
Pin Capacitance Table 8 (Ta = +25°C, f = 1.0 MHz, VCC = 5. 0 V)
Item Symbol Condition Min. Max. Unit
Input capacitance CIN VIN = 0 V (CS, SCK, SI, WP , HOLD) 8 pF
Output capacitance COUT V
OUT = 0 V (SO) 10 pF
Endurance
1. S-25A080A/160A/320A Table 9
Item Symbol Operation Ambient Temperature Min. Max. Unit
Ta = 40°C to +85°C 106 cycle / word*1
Ta = 40°C to +105°C 8 × 105 cycle / word*1
Endurance NW Ta = 40°C to +125°C 5 × 105 cycle / word*1
*1. For each address (Word: 8-bit)
2. S-25A080B/160B/320B Table 10
Item Symbol Operation Ambient Temperature Min. Max. Unit
Ta = +25°C 106 cycle / word*1
Ta = 40°C to +85°C 7 × 105 cycle / word*1
Ta = 40°C to +105°C 5 × 105 cycle / word*1
Endurance NW
Ta = 40°C to +125°C 3 × 105 cycle / word*1
*1. For each address (Word: 8-bit)
Data Retention Table 11
Item Symbol Operation Ambient Temperature Min. Max. Unit
Ta = +25°C 100 year
Data retention Ta = 40°C to +125°C 50 year
125°C OPERATION SPI SERIAL E2PROM FOR AUTOMOTIVE
Rev.4.0_00 S-25A080A/160A/320A, S-25A080B/160B/320B
Seiko Instruments Inc. 7
DC Electrical Characteristics
1. S-25A080A/160A/320A
Table 12 Ta = 40°C to +125°C
VCC = 2.5 V to 3.0 V
fSCK = 3.5 MHz VCC = 3.0 V to 4.5 V
fSCK = 5.0 MHz VCC = 4.5 V to 5.5 V
fSCK = 6.5 MHz
Item Symbol Condition
Min. Max. Min. Max. Min. Max.
Unit
Current consumption
(read) ICC1 No load at
SO pin 1.5 2.0 2.5 mA
Table 13 Ta = 40°C to +125°C
VCC = 2.5 V to 3.0 V
fSCK = 3.5 MHz VCC = 3.0 V to 4.5 V
fSCK = 5.0 MHz VCC = 4.5 V to 5.5 V
fSCK = 6.5 MHz
Item Symbol Condition
Min. Max. Min. Max. Min. Max.
Unit
Current consumption
(write) ICC2 No load at
SO pin 2.0 2.5 3.0 mA
Table 14 Ta = 40°C to +125°C
VCC = 2.5 V to 4.5 V VCC = 4.5 V to 5.5 V
Item Symbol Condition
Min. Max. Min. Max.
Unit
Standby current
consumption ISB
CS = VCC,
SO = Open
Other inputs are
VCC or GND
8.0 10.0 μA
Input leakage current ILI V
IN = GND to VCC 2.0 2.0 μA
Output leakage current ILO V
OUT = GND to VCC 2.0 2.0 μA
VOL1 I
OL = 2.0 mA 0.4 V Low level
output voltage VOL2 I
OL = 1.5 mA 0.4 0.4 V
VOH1 I
OH = 2.0 mA 0.8 × VCC V High level
output voltage VOH2 I
OH = 0.4 mA 0.8 × VCC 0.8 × VCC V
125°C OPERATION SPI SERIAL E2PROM FOR AUTOMOTIVE
S-25A080A/160A/320A, S-25A080B/160B/320B Rev.4.0_00
Seiko Instruments Inc.
8
2. S-25A080B/160B/320B Table 15 Ta = 40°C to +125°C
VCC = 2.5 V to 4.5 V
fSCK = 6.5 MHz VCC = 4.5 V to 5.5 V
fSCK = 6.5 MHz
Item Symbol Condition
Min. Max. Min. Max.
Unit
Current consumption
(read) ICC1 No load at SO pin 2.0 2.5 mA
Table 16 Ta = 40°C to +125°C
VCC = 2.5 V to 5.5 V
fSCK = 6.5 MHz
Item Symbol Condition
Min. Max.
Unit
Current consumption
(write) ICC2 No load at SO pin 4.0 mA
Table 17 Ta = 40°C to +125°C
VCC = 2.5 V to 4.5 V VCC = 4.5 V to 5.5 V
Item Symbol Condition Min. Max. Min. Max.
Unit
Standby current
consumption ISB
CS = VCC,
SO = Open
Other inputs are
VCC or GND
8.0 10.0 μA
Input leakage current ILI V
IN = GND to VCC 2.0 2.0 μA
Output leakage current ILO V
OUT = GND to VCC 2.0 2.0 μA
VOL1 I
OL = 2.0 mA 0.4 V Low level
output voltage VOL2 I
OL = 1.5 mA 0.4 0.4 V
VOH1 I
OH = 2.0 mA 0.8 × VCC V High level
output voltage