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參數(shù)資料
| 型號(hào)： | NT68P61A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8-Bit Microcontroller for Monitor (24K OTP ROM Type) |
| 中文描述： | 8位微控制器的監(jiān)視器（足金檢察官辦公室光盤(pán)形式） |
| 文件頁(yè)數(shù)： | 1/48頁(yè) |
| 文件大?。?/td> | 1057K |
| 代理商： | NT68P61A |
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NT68P61A
8-Bit Microcontroller for Monitor (24K OTP ROM Type)
1
V1.0
Features
40 pin DIP & 42 pin SDIP package
Operating Voltage Range: 4.5V to 5.5V
CMOS technology for low power consumption
Crystal oscillator or ceramic resonator* available
6502 8-bit CMOS CPU core
8MHz operation of frequency
24K bytes of OTP (one time programming) ROM
256 bytes of RAM (which stores EDID for DDC1/2B)
One 8-bit pre-loadable base timer
14 channels of 8 bit PWM outputs:
6 channel with 5V open drain and 8 channel with 12V
open drain
2 channel A/D converters with 6-bit resolution
24 bi-directional I/O port pins and 1 I/P pin
Hsync/Vsync signal processor
Hardware sync signals polarity & freq. evaluator
Built-In I
2
C bus interface
Supporting VESA DDC1/2B function
Six-interrupt sources
- INTV
(Vsync INT)
- INTE
(External INT with rising edge trigger)
- INTMR(Timer INT )
- INTA (Slave Address Matched INT)
- INTD (Shift Register INT)
- INTS
(SCL GO-LOW INT)
Hardware watch-dog timer function
Built-In Low Voltage reset circuit (LVRC)
General Description
NT68P61A is a monitor component
μ
C for auto-sync and
digital controlled applications. It contains a 6502
8-bit CPU core, 256 bytes of RAM used as working RAM
and stack area, 24K bytes of OTP ROM**, 14-channel 8-
bit PWM D/A converters, 2-channel A/D converters for
key detection saving I/O pins, one 8 bit pre-loadable
base timer, internal Hsync and Vsync signals processor
providing mode detection, watch-dog timer preventing
system from abnormal operation, and an I
2
C bus
interface. The LVRC enables NT68P61A operate
properly.
Users can store EDID data in the 128 bytes of RAM for
DDC1/2B, so that users can save the cost of dedicated
EEPROM for EDID. Half frequency output function can
save external one-shot circuit. All of these designs create
savings in component costs.
* The frequency deviation of ceramic resonator has
+/- 6% maximum.
** The NT6861 (MASK ROM type) will provide
4/8/12/16/24K bytes program ROM.
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