KD-LH70R
1-24 (No.49803)
4.2 BR24C32F-X (IC771) : EEPROM
• Pin layout
• Pin function
• Block diagram
4.3 GP1UM261XK (IC602) : Receiver
• Pin layout
Vdd
WPIN
SCL
SDA
A0
A1
A2
GND
Symbol
I/O
Function
Vdd
- Power
supply.
GND
- GND
A0,A1,A2
I
No use connect to GND.
SCL
I
Serial clock input.
SDA
I/O Serial data I/O of slave and word address.
WPIN
I
Write protect terminal.
8 Vdd
7 WPIN
6 SCL
5 SDA
A0 1
A1 2
A2 3
GND 4
16kbit EEPROM allay
11bit
11bit
8bit
Address
decoder
Slave Word
Address resister
Data
resister
START
STOP
ACK
Control circuit
High voltage osc circuit
Power supply
voltage det.
Demodulator
Integrator
Comparator
B.P.F.
Limiter
GND Vdd Vout
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