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PDF S-34C04A Data sheet ( Hoja de datos )
| Número de pieza | S-34C04A | |
| Descripción | 2-WIRE SERIAL E2PROM | |
| Fabricantes | Seiko | |
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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
1 page  
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 −
0−0−
200 900 0 350
0.6 − 0.26 −
0.6 − 0.26 −
0.6 − 0.26 −
1.3 − 0.5 −
− 50 − 50
1−1−
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
5 Page 
Rev.1.0_01_U
2-WIRE SERIAL E2PROM FOR DIMM SERIAL PRESENCE DETECT
S-34C04A
8. Timeout
This IC has the timeout function. If the SCL stays "L" for the time tTIMEOUT or more, this IC resets the serial interface
and returns to standby mode. If the SCL stays "L" for less than the tTIMEOUT, this IC does not reset the serial interface.
The tTIMEOUT is 30 ms typ.
tTIMEOUT.MIN
tTIMEOUT.MAX
CASE 1 SCL
CASE 2 SCL
CASE 3 SCL
CASE1: SCL clock time "L" ≥ tTIMEOUT.MAX, this IC will reset the bus communication and return to standby mode.
CASE2: SCL clock time "L" < tTIMEOUT.MIN, this IC will not reset the bus communication.
CASE3: tTIMEOUT.MIN ≤ SCL clock time "L" < tTIMEOUT.MAX, this IC may or may not reset the bus communication.
Figure 7 The Examples of the Timeout Timing
When this IC is not in the range of the clock frequency specified by AC characteristics, it may not perform
communication normally.
11
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| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet S-34C04A.PDF ] | |
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