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PDF S-25A640B Data sheet ( Hoja de datos )
| Número de pieza | S-25A640B | |
| Descripción | OPERATION SPI SERIAL E2PROM | |
| Fabricantes | Seiko | |
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S-25A640A, S-25A640B
www.sii-ic.com
© Seiko Instruments Inc., 2008-2014
FOR AUTOMOTIVE 125°C OPERATION
SPI SERIAL E2PROM
Rev.3.2_00
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 64 K-bit and the organization of 8192 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
Packages
• Operating voltage range
Read:
2.5 V ~ 5.5 V
Write:
2.5 V ~ 5.5 V
• Operation frequency
S-25A640A:
5.0 MHz max.
S-25A640B:
6.5 MHz max.
• Write time
S-25A640A:
4.0 ms max.
S-25A640B:
5.0 ms max.
• SPI mode (0, 0) and (1, 1)
• Page write:
• Sequential read
• Write protect:
Protect area:
32 bytes / page
Software, Hardware
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-25A640A:
S-25A640B:
106 cycle / word*2 (Ta = +25°C)
5 × 105 cycle / word*2 (Ta = +125°C)
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:
64 K-bit
• Initial delivery state:
FFh, SRWD = 0, BP1 = 0, BP0 = 0
• Burn-in specification:
Wafer level burn-in
• Operation temperature range: Ta = −40°C to +125°C
• Lead-free (Sn 100%), halogen-free*3
• AEC-Q100 qualified*4
• 8-Pin SOP (JEDEC)
5
8
4
1
(5.0 × 6.0 × t1.75 mm)
• 8-Pin TSSOP
5
8
4
1
(3.0 × 6.4 × t1.1 mm)
• TMSOP-8
5
8
4
1
(2.9 × 4.0 × t0.8 mm)
*1. Refer to " Endurance" for details.
*2. For each address (Word: 8-bit)
*3. Refer to " Product Name Structure" for details.
*4. Contact our sales office for details.
Remark Refer to "3. Product name list" in " Product Name Structure" for details of package and product.
Seiko Instruments Inc.
1
1 page  
Rev.3.2_00
FOR AUTOMOTIVE 125°C OPERATION SPI SERIAL E2PROM
S-25A640A, S-25A640B
Absolute Maximum Ratings
Table 6
Item
Symbol
Absolute Maximum Rating
S-25A640A
S-25A640B
Unit
Power supply voltage
Input voltage
Output voltage
Operation ambient temperature
Storage temperature
VCC
VIN
VOUT
Topr
Tstg
−0.3 to +7.0
−0.3 to +6.5
−0.3 to +7.0
−0.3 to +6.5
−0.3 to VCC + 0.3
−40 to +125
−65 to +150
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 7
Item
Symbol
Condition
Power supply voltage
High level input voltage
Low level input voltage
VCC
VIH
VIL
Read
Write
VCC = 2.5 V to 5.5 V
VCC = 2.5 V to 5.5 V
Ta = −40°C to +125°C
Min. Max.
2.5 5.5
2.5 5.5
0.7 × VCC
−0.3
VCC + 1.0
0.3 × VCC
Unit
V
V
V
V
Pin Capacitance
Table 8
Item
Input capacitance
Output capacitance
Symbol
CIN
COUT
Condition
VIN = 0 V ( CS , SCK, SI, WP , HOLD )
VOUT = 0 V (SO)
(Ta = +25°C, f = 1.0 MHz, VCC = 5.0 V)
Min.
Max.
Unit
－ 8 pF
－ 10 pF
Endurance
1. S-25A640A
Item Symbol
Endurance
NW
*1. For each address (Word: 8-bit)
Table 9
Operation Ambient Temperature
Ta = −40°C to +85°C
Ta = −40°C to +105°C
Ta = −40°C to +125°C
Min.
106
8 × 105
5 × 105
Max.
－
－
－
Unit
cycle / word*1
cycle / word*1
cycle / word*1
2. S-25A640B
Item
Symbol
Endurance
NW
*1. For each address (Word: 8-bit)
Table 10
Operation Ambient Temperature
Ta = +25°C
Ta = −40°C to +85°C
Ta = −40°C to +105°C
Ta = −40°C to +125°C
Min.
106
7 × 105
5 × 105
3 × 105
Max.
－
－
－
－
Unit
cycle / word*1
cycle / word*1
cycle / word*1
cycle / word*1
Data Retention
Table 11
Item
Symbol
Operation Ambient Temperature
Min.
Max.
Data retention
－
Ta = +25°C
Ta = −40°C to +125°C
100 －
50 －
Unit
year
year
Seiko Instruments Inc.
5
5 Page 
Rev.3.2_00
CS
SCK
ADDR
SI LSB IN
tOD
SO
CS
WP
CS
WP
FOR AUTOMOTIVE 125°C OPERATION SPI SERIAL E2PROM
S-25A640A, S-25A640B
tSCK
tHIGH
tLOW
tOZ
tOH tOD tOH
LSB OUT
tRO
tFO
Figure 7 Serial Output Timing
tWS1
tWH1
Figure 8 Valid Timing in Write Protect
tWS2
tWH2
Figure 9 Invalid Timing in Write Protect
Seiko Instruments Inc.
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet S-25A640B.PDF ] | |
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