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Seiko Instruments Electronic Components Datasheet


S-34C02A

2-WIRE CMOS SERIAL E2PROM



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S-34C02A pdf
Rev.1.2_00
2-WIRE CMOS SERIAL E2PROM
FOR DIMM SERIAL PRESENCE DETECT
S-34C02A
S-34C02A is a 2-wired serial E2PROM for DIMM Serial
Presence Detect which operates with low current
consumption and the wide range operation. The S-34C02A
has the capacity of 2K-bit and the organization of 256
words × 8-bit, is able to Page Write and Sequential Read.
S-34C02A has Hardware Protect and Software Protect.
Hardware Protect inhibits Write to all memory area by
connecting the WP pin to VCC. Software Protect inhibits
Write in 50% of the lower address (the address 00h to 7Fh)
in all memory area by inputting command when the WP pin
is connected to GND or left open.
„ Features
Operating voltage range
Read:
1.6 to 5.5 V
Write:
1.7 to 5.5 V
Page write:
16 bytes / page
Sequential read
Operation frequency:
Noise filtering
400 kHz (VCC = 2.5 to 5.5 V)
Schmitt trigger and noise filter on bus input pins (SCL, SDA)
Write protect function during low power supply
Endurance:
106 cycles / word*1 (at +25°C)
*1. For each address (Word: 8 bits)
Data retention:
100 years (at +25°C)
Memory size
2K-bit
Write Protect:
Hardware Protect 100% (addresses 00h to FFh)
Software Protect for the lower address of 50% (addresses 00h to 7Fh)
Lead-free product
„ Package
Package name
8-Pin TSSOP
Package
FT008-A
Drawing code
Tape
FT008-E
Reel
FT008-E
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 SII is
indispensable.
Seiko Instruments Inc.
1



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S-34C02A pdf
2-WIRE CMOS SERIAL E2PROM FOR DIMM SERIAL PRESENCE DETECT
S-34C02A
„ Pin Configuration
Rev.1.2_00
8-Pin TSSOP
Top view
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
Figure 1
S-34C02A0I-T8T1G
Table 1
Pin No. Symbol
Description
1 A0 Address input
2 A1 Address input
3 A2 Address input
4 GND Ground
5 SDA Serial data input / output
6 SCL Serial clock input
Write protection input
7 WP
Connected to VCC: Protection valid
Connected to GND: Protection invalid
8 VCC Power supply
Remark See Dimensions for details of the package drawings.
2 Seiko Instruments Inc.



Part Number S-34C02A
Description 2-WIRE CMOS SERIAL E2PROM
Maker Seiko - Seiko
Total Page 30 Pages
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