S-34C04A Datasheet, PDF (2/22 Pages) Seiko Instruments Inc – FOR DIMM SERIAL PRESENCE DETECT

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
8
2
7
3
6
4
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