Denon S-301 Service Manual page 77

MIC2025 (IC102: 1U-3693)
MIC2025/75
E N OUT
1 8
F L G 2 7 IN
GND 3 6 OUT
NC 4 5 NC
CXA1511M (IC204: 1U-3694)
1 8
IN
TOP 7
2
VIEW
3
6
4 5
BR24L32F-W (IC104: 1U-3692)
Pin configuration
V WP SCL
CC
8 7 6
BR24L32F-W
1 2 3
A0 A1 A2
TC7W32F (IC109, 110: 1U-3692)
Pin Description
Pin Number Pin Name
1 EN
2 FLG
3 GND
4 NC
5 NC
6, 8 OUT
7 IN
Block diagram
SDA
A0 1
5
A1 2
A2 3
4
GND 4
GND
Pin name
Pin name
V
CC
GND
A0, A1, A2
SCL
SDA
WP
An open drain output requires a pull-up resistor.
Pin Function
Switch Enable (Input): Active high ( 1) or active low ( 2).
Fault Flag (Output): Active low, open drain output. Indicates overcurrent or
thermal shutdown conditions. Overcurrent condition must exceed t
to assert FLG.
Ground
not internally connected
not internally connected
Supply (Output): Pins must be connected together.
Supply Voltage (Input).
32kbit EEPROM array
12bit
Address Slave word
12bits
decoder address register
START STOP
Control logic
High voltage generator Vcc level detect
I / O
Power supply
Ground (0V)
IN Slave address set
IN Serial clock input
Slave and word address,
IN / OUT
serial data input, serial data output
IN
Write protect input
TC7WH14FU (IC116: 1U-3692)
77
8bit
Data
register
ACK
Function
S-301
in order
D
8 V
CC
7 WP
6 SCL
5 SDA