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W921E880A データシートの表示(PDF) - Winbond
部品番号
コンポーネント説明
メーカー
W921E880A
4-BIT MICROCONTROLLER
Winbond
W921E880A Datasheet PDF : 57 Pages
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W921E880A/W921C880
5. BLOCK DIAGRAM
PROGRAM
COUNTER
Co-V REG. Co-U REG.
RESET
EPROM
10 * 8K
W REG.
V REG.
U REG.
DECODER
& CONTROL
B REG.
A REG.
STACK
ALU
POINTER
RAM
4 * 1536
PE.0-PE.3
PF.0-PF.3
PORT PE
PORT PF
PORT MODE
REGISTER
XT
XT
OSCI
OSCO
OSCILLATOR
and
SYSTEM
PRESCALER
TIMER 0 TIMER 1 TIMER 2 TIMER 3
PORT P0
PORT P1
PORT P2
PORT P3
PORT P4
PORT P5
PORT P6
PORT P7
PORT P8
PORT P9
PORT PD
PORT PA
PORT PB
VDD
VSS
P3.0(ANI0)
P3.1(ANI1)
P3.2(ANI
2P)3.3(ANI3)
+
P5.2/VREF
-
PORT PC
DTMF GENERATOR
BEEP TONE
GENERATOR
DAMSB
DALSB
D/A CONVERTOR
P5.3/DAOUT
P0.0-P0.3
P1.0-P1.3
P2.0-P2.3
P3.0-P3.3
P4.0-P4.3
P5.0-P5.3
P6.0-P6.3
P7.0-P7.3
P8.0-P8.3
P9.0-P9.3
PD.0-PD.3
PA.0-PA.3
PB.0-PB.3
PC.0-PC.3
DTMF
BTG
Publication Release Date: July 1999
-9-
Revision A3
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