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參數資料
| 型號： | P83C270AAR |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Microcontrollers for NTSC TVs with On-Screen Display OSD and Closed Caption CC |
| 中文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PDIP52 |
| 文件頁數： | 4/80頁 |
| 文件大?。?/td> | 266K |
| 代理商： | P83C270AAR |
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4
P
P
M
D
P
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4
B
b
MGR380
2
8-bit internal bus
8-BIT
WATCHDOG
TIMER
(T3)
ROM
64-KBYTES
9
×
7-BIT
DACS
CC DATA SLICER
ON-SCREEN DISPLAY
(OSD)
P2
external
interrupts
8
P0
8
P3
PWM0 to PWM8
(1)
FB
R
G
B
VSYNC
HSYNC
VPP/EA
RESET
ALE/PROG
PSEN
RAM
1-KBYTE
3
×
4-BIT
ADCS
TWO 16-BIT
TIMER/
COUNTERS
(T0 AND T1)
VSSD
VSSA
VDDP
VDDC
VDDA
FUNCTION
COMBINED
PARALLEL
I/O PORTS
PARALLEL
I/O PORT
CPU
80C51 CORE
EXCLUDING
ROM/RAM
XI
XO
REFH
CVBS
I
2
C-BUS
INTERFACE
SDA
(3)
SCL
(3)
IREF
BLK
STN
8
5
P1
AFT0
(2)
AFT1
(2)
AFT2
(2)
Fig.1 Block diagram.
(1) Alternative functions of Port 0 except PWM0 which is an alternative function of Port 1.
(2) Alternative functions of Port 1.
(3) Alternative functions of Port 3.
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