MSM6234 查看數據表（PDF） - Oki Electric Industry
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MSM6234 Datasheet PDF : 12 Pages
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¡ Semiconductor
MSM6234
BLOCK DIAGRAM
3.579545 MHz
OSC I
OSC O
OSC
1/2
MUTE
LOGIC
VDD
R1
[LOW]
PR
R2
R3
KEY BOARD
LOGIC
(ROW)
PROGRAMMABLE
CK
DIVIDER
160, 146, 132, 118
16fL CK
R
8 STAGE
COUNTER
R4
SINGLE
VDD
TONE
INHIBIT
VDD
INHIBIT
VREF
LOGIC
C1
C2
C3
C4
VDD
VSS
TONE
DISABLE
KEY BOARD
LOGIC
(COLUMN)
VDD
R
CK PROGRAMMABLE
DIVIDER
PR 92, 84, 76, 68
16fH CK
8 STAGE
COUNTER
[HIGH]
LADDER
NETWORK
LADDER
NETWORK
AKD
VDD
ADDER
TONE
OUT
2/12
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