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參數(shù)資料
| 型號(hào)： | PCA84C646 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Microcontrollers for TV tuning control and OSD applications(應(yīng)用于TV調(diào)頻和OSD的微控制器) |
| 中文描述： | 微控制器的控制和調(diào)整（應(yīng)用于電視調(diào)頻和OSD的微控制器應(yīng)用的電視OSD） |
| 文件頁(yè)數(shù)： | 4/72頁(yè) |
| 文件大?。?/td> | 564K |
| 代理商： | PCA84C646 |
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1995 Jun 15
4
Philips Semiconductors
Preliminary specification
Microcontrollers for TV tuning
control and OSD applications
PCA84C646; PCA84C846
2
GENERAL DESCRIPTION
The PCA84C646 and PCA84C846 are 8-bit
microcontrollers with enhanced OSD and VST functions.
The PCA84C646 and PCA84C846 are members of the
PCA84C640 CMOS microcontroller family. They include
the PCF84CXXXA processor core, 6 or 8 kbytes of ROM
and 192 bytes of RAM.
I/O requirements are adequately catered for with
13 general purpose bidirectional I/O lines plus 16 function
combined I/O lines. One 14-bit PWM analog control,
3 AFC inputs (4-bit DAC + comparator) for VST and four
6-bit and 7-bit PWM analog control outputs are provided.
In addition to all these features a master-slave I
2
C-bus
interface, 2 directly testable lines and an enhanced OSD
facility for flexible screen format (maximum of 64 character
types) are also provided.
The on-chip Phase-Locked Loop (PLL) oscillator for OSD
operation considerably reduces the radiation generated by
the RC or LC oscillator. An 8-bit timer is integrated on-chip
with a 5-bit prescaler. Another 8-bit counter with
Schmitt-trigger input is used for clock/timer function
application.
Figure 1 shows the block diagram of the PCA84C646 and
PCA84C846.
3
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
PCA84C646P
PCA84C846P
SDIP42
plastic shrink dual in-line package; 42 leads (600 mil)
SOT270-1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA84C646P | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Microcontrollers for TV tuning control and OSD applications |
| PCA84C64X | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| PCA84C822 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers for remote control transmitters |
| PCA84C822A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers for remote control transmitters |
| PCA84C822AP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers for remote control transmitters |
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