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© SII Semiconductor Corporation, 2013
S-34C04A
2-WIRE SERIAL E2PROM
FOR DIMM SERIAL PRESENCE DETECT
Rev.1.0_01_U
This IC is a 2-wire serial E2PROM for DIMM serial presence detect which operates in 1.7 V to 3.6 V voltage ranges. This IC
has the capacity of 4 K-bit and the organization of 2 pages × 256-word × 8-bit. Page write and sequential read are available.
This IC operates with the I2C-bus at 1.0 MHz maximum.
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 Semiconductor
Corporation is indispensable.
Features
Package
Page write:
16 bytes / page
Sequential read
Write protect function during low power supply voltage
Write protect:
Individual software data protection for each of four 128-byte blocks
Endurance:
106 cycle / word*1 (Ta = +25°C)
Data retention:
100 years (Ta = +25°C)
Memory capacity:
4 K-bit
Initial delivery state:
FFh
JEDEC standard compliant: EE1004-1
Current consumption:
Standby mode:
3.0 μA max.
Read operation mode:
0.4 mA max.
Write operation mode:
2.0 mA max.
Operation voltage range:
1.7 V to 3.6 V
Operation frequency:
1.0 MHz max. (VDD = 2.2 V to 3.6 V)
400 kHz max. (VDD = 1.7 V to 3.6 V)
Noise suppression:
Schmitt trigger and noise filter on input pins (SCL, SDA)
Operation temperature range: Ta = 20°C to +125°C
Lead-free (Sn 100%), halogen-free
DFN-8(2030)
5
84
1
*1. For each address (Word: 8-bit)
1

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2-WIRE SERIAL E2PROM FOR DIMM SERIAL PRESENCE DETECT
S-34C04A
Block Diagram
Rev.1.0_01_U
VDD
VSS
SCL
SDA
SA2
SA1
SA0
Power-on reset
Start / stop
detector
Timeout
circuit
Serial clock
controller
Device address
comparator
High-voltage
detector
Address
counter
Y-decoder
Voltage detector
High-voltage generator
Data register
X-
decoder
E2PROM
Selector
Data output
ACK output
controller
Pin Configuration
1. DFN-8(2030)
Top view
1
2
3
4
8
7
6
5
Pin No.
1
2
3
4
5
6
7
8
Symbol
SA0
SA1
SA2
VSS
SDA*1
SCL*1
NC*2
VDD
Select address input
Select address input
Select address input
Ground
Serial data I/O
Serial clock input
No connection
Power supply
Description
*1. Do not use it in "High-Z".
*2. The NC pin is electrically open.
Therefore, leave it open or connect it to VDD pin or VSS pin.
Remark For DFN-8(2030) package, connect the heatsink of back side to the board, and set electric potential open or VSS.
However, do not use it as the function of electrode.
2

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Rev.1.0_01_U
2-WIRE SERIAL E2PROM FOR DIMM SERIAL PRESENCE DETECT
S-34C04A
Absolute Maximum Ratings
Table 1
Item
Power supply voltage
Input voltage (SCL, SA1, SA2)
SA0 high level input voltage
I/O voltage (SDA)
Operation ambient temperature
Storage temperature
Symbol
VDD
VIN
VHV
VIO
Topr
Tstg
Absolute Maximum Rating
0.3 to +4.3
0.3 to +4.3
0.3 to +10.0
0.3 to +4.3
20 to +125
65 to +150
Unit
V
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 Operation Conditions
Item
Power supply voltage
Operation ambient temperature
High level input voltage
Low level input voltage
SA0 high level input voltage
Symbol
VDD
Topr
VIH
VIL
VHV
Table 2
Condition
EE1004-1 compliant
VHV VDD 4.8 V
Min.
1.7
20
0.7 × VDD
0.3
7.0
Max.
3.6
+125
VDD + 0.5
0.3 × VDD
10.0
Unit
V
°C
V
V
V
Pin Capacitance
Table 3
Item
Input capacitance
I/O capacitance
Symbol
CIN
CI/O
Condition
VIN = 0 V (SCL, SA0, SA1, SA2)
VI/O = 0 V (SDA)
(Ta = +25°C, f = 1.0 MHz, VDD = 2.5 V)
Min. Max. Unit
6 pF
8 pF
Endurance
Table 4
Item Symbol Operation Ambient Temperature
Endurance
NW Ta = +25°C
*1. For each address (Word: 8-bit)
Min.
106
Max.
Unit
cycle / word*1
Data Retention
Item
Data retention
Symbol
Table 5
Operation Ambient Temperature
Ta = +25°C
Min.
100
Max.
Unit
year
3