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Seiko Instruments Electronic Components Datasheet


S-25A640A

OPERATION SPI SERIAL E2PROM



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S-25A640A pdf
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



No Preview Available !

S-25A640A pdf
FOR AUTOMOTIVE 125°C OPERATION SPI SERIAL E2PROM
S-25A640A, S-25A640B
Block Diagram
CS
SCK
SI
HOLD
WP
SO
Voltage Detector
Clock Counter
Data Register
Mode
Decoder
Output
Control
Circuit
Address Register
Status Register
Read Circuit
Rev.3.2_00
Step-up Circuit
Page Latch
Memory
Cell
Array
Status
Memory Cell Array
Y Decoder
VCC
GND
Figure 1
AEC-Q100 Qualified
This IC supports AEC-Q100 for operation temperature grade 1.
Contact our sales office for details of AEC-Q100 reliability specification.
Product Name Structure
1. Product name
1. 1 S-25A640A
S-25A640A 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-25A640A: 64 K-bit
2 Seiko Instruments Inc.



Part Number S-25A640A
Description OPERATION SPI SERIAL E2PROM
Maker Seiko - Seiko
Total Page 30 Pages
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