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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

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2-WIRE SERIAL E2PROM FOR DIMM SERIAL PRESENCE DETECT
S-34C04A
Rev.1.0_01_U
DC Electrical Characteristics
Table 6
Item
Symbol
Condition
Standby current consumption
Current consumption (READ)
Current consumption (WRITE)
Input leakage current
Output leakage current
Input current 1
Input current 2
Input impedance 1
Input impedance 2
Low level output voltage 1
Low level output voltage 2
Low level output current 1
Low level output current 2
Power-on reset threshold voltage
Power-off threshold voltage
IDD1
IDDR
IDDW
ILI
ILO
IIL
IIH
ZIL
ZIH
VOL1
VOL2
IOL1
IOL2
VPON
VPOFF
VIN = VSS or VDD
f = 1.0 MHz (VDD = 2.2 V to 3.6 V)
f = 400 kHz (VDD = 1.7 V to 3.6 V)
f = 1.0 MHz (VDD = 2.2 V to 3.6 V)
f = 400 kHz (VDD = 1.7 V to 3.6 V)
SCL, SDA
VIN = VSS to VDD
SDA
VOUT = VSS to VDD
SA0, SA1, SA2
VIN < 0.3 × VDD
SA0, SA1, SA2
VIN > 0.7 × VDD
SA0, SA1, SA2
VIN = 0.3 × VDD
SA0, SA1, SA2
VIN = 0.7 × VDD
SDA
IOL = 3.0 mA, VDD > 2.0 V
SDA
IOL = 2.0 mA, VDD 2.0 V
SDA
VOL = 0.4 V, VDD 2.2 V
SDA
VOL = 0.6 V, f 400 kHz
Ta = 20°C to +125°C
VDD = 1.7 V to 3.6 V
Min. Max.
3.0
0.4
Unit
μA
mA
2.0 mA
1.0 μA
1.0 μA
50.0 μA
2.0 μA
30 kΩ
800 kΩ
0.4 V
0.2 × VDD
V
20 mA
6 mA
1.6 V
0.9 V
4

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Rev.1.0_01_U
2-WIRE SERIAL E2PROM FOR DIMM SERIAL PRESENCE DETECT
S-34C04A
AC Electrical Characteristics
Table 7 Measurement Conditions
Input pulse voltage
Input pulse rising / falling time
Output reference voltage
Output load
0.2 × VDD to 0.8 × VDD
20 ns or less
0.3 × VDD to 0.7 × VDD
100 pF
Input pulse voltage
0.8 × VDD
Output reference voltage
0.7 × VDD
0.2 × VDD
0.3 × VDD
Figure 1 Input / Output Waveform during AC Measurement
Item
SCL clock frequency
SCL clock time "L"
SCL clock time "H"
SCL clock "L" timeout
SCL, SDA rising time
SCL, SDA falling time
Data input setup time
Data input hold time
Data output hold time
Start condition setup time
Start condition hold time
Stop condition setup time
Bus release time
Noise suppression time
Power-off time
Initialize time
Symbol
fSCL
tLOW
tHIGH
tTIMEOUT
tR
tF
tSU.DAT
tHD.DI
tHD.DAT
tSU.STA
tHD.STA
tSU.STO
tBUF
tI
tPOFF
tINIT
Table 8
Ta = 20°C to +125°C
VDD = 1.7 V to 3.6 V
VDD = 2.2 V to 3.6 V
400 kHz
1000 kHz
Min. Max. Min. Max.
10 400 10 1000
1.3 0.5
0.6 0.26
25 35 25 35
0.02 0.3
0.12
0.02 0.3
0.12
100 50
00
200 900 0 350
0.6 0.26
0.6 0.26
0.6 0.26
1.3 0.5
50 50
11
0.2 0.2
Unit
kHz
μs
μs
ms
μs
μs
ns
ns
ns
μs
μs
μs
μs
ns
ms
ms
SCL
tF
tSU.STA
tHD.STA
SDA
(Input)
SDA
(Output)
tHIGH
tLOW
tHD.DI
tSU.DAT
tHD.DAT
Figure 2 Bus Timing
tR
tSU.STO
tBUF
5