Denon S-301 Service Manual page 77

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3 7 63 1515 0
MIC2025 (IC102: 1U-3693)
MIC2025/75
E N 1 8
F L G 2 7
GND 3 6
NC 4 5
CXA1511M (IC204: 1U-3694)
1 8
TOP
2 7
VIEW
3
6
4
5
BR24L32F-W (IC104: 1U-3692)
Pin configuration
V WP SCL
CC
8 7 6
TE
L 13942296513
BR24L32F-W
1 2 3
A0 A1 A2
TC7W32F (IC109, 110: 1U-3692)
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Pin Description
Pin Number Pin Name
1 EN
2 FLG
OUT
IN
3 GND
OUT
4 NC
5 NC
NC
6, 8 OUT
7 IN
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.
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y
i
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8
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
Q Q
3 6 7 1 3
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)
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77
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
8bit
Data
register
ACK
Function
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co
S-301
9 9
in order
D
8 V
CC
2 8 9 9
7 WP
6 SCL
5 SDA