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參數(shù)資料
| 型號： | P87C380 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Microcontrollers for monitors with DDC interface, auto-sync detection and sync proc(帶DDC接口，同步監(jiān)測和同步處理的監(jiān)視器微控制器) |
| 中文描述： | 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PDIP42 |
| 封裝： | 0.600 INCH, PLASTIC, SOT-270-1, SDIP-42 |
| 文件頁數(shù)： | 3/84頁 |
| 文件大?。?/td> | 420K |
| 代理商： | P87C380 |
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1997 Dec 12
3
Philips Semiconductors
Product specification
Microcontrollers for monitors with DDC
interface, auto-sync detection and sync proc.
P83Cx80; P87C380
1
FEATURES
80C51 type core
On-chip oscillator with a maximum frequency of 16 MHz
(maximum 0.75
μ
s instruction cycle)
A DDC interface:
– That fully supports DDC1 with specific hardware
– That is DDC2B, DDC2B+, DDC2AB (ACCESS.bus)
compliant, based on a dedicated hardware I
2
C-bus
interface.
– Contains a specific AUX-RAM buffer with
programmable size (128 or 256 bytes) that can be
used for DDC operation and shared as system RAM
Automatic mode detection by hardware to capture the
following information:
– HSYNC frequency with 12-bit resolution
– VSYNC frequency with 12-bit resolution
– HSYNC and VSYNC polarity
– HSYNC and VSYNC presence; needed for the VESA
Device Power Management Signalling (DPMS)
standard
On-chip sync processor comprising:
– Composite sync separation
– Free running mode
– Clamping
– Pattern generation
Two specific ports for the software I
2
C-bus interface
4 analog voltage outputs derived from an 8-bit
Digital-to-Analog Converter (DAC)
Ten 8-bit Pulse Width Modulation (PWM) outputs for
digital control application
One 14-bit PWM output for digital control application
One 4-bit Analog-to-Digital Converter (ADC) with 2 input
channels (for keyboard interface)
LED driver port (Port 0); eight port lines with 10 mA drive
capability
One 8-bit port only for I/O function
20 derivative I/O ports with the specific port type
configuration in each alternative function
Watchdog Timer with a programmable interval
On-chip Power-on-reset for low power detection
Special Idle and Power-down modes for reduced power
operation
Optimized for Electromagnetic Compatibility (EMC)
Operating temperature:
25 to +85
°
C
Single power supply: 4.4 to 5.5 V.
1.1
Differences from the 80C51 core
No external memory connection; signals EA, ALE and
PSEN are not present.
Port 1, Port 2 and Port 3 (P3.0 to P3.3 only) mixed with
other derivative functions.
Timer 0/Counter 0 and Timer 1/Counter 1: external
input is removed.
External interrupt 0/INT0 replaced by Mode detection
function.
Standard serial interface (UART) and its control register
are removed.
Wake-up from Power-down mode is also possible by
means of an interrupt.
1.2
Memory
Table 1
ROM/RAM sizes
DEVICE
MEMORY
ROM
RAM
P83C880
P83C180
P83C280
P83C380
P87C380 (OTP)
8 kbytes
16 kbytes
24 kbytes
32 kbytes
16 kbytes
512 bytes
512 bytes
512 bytes
512 bytes
512 bytes
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| P83C180 | Microcontrollers for monitors with DDC interface, auto-sync detection and sync proc(帶DDC接口，同步監(jiān)測和同步處理的監(jiān)視器微控制器) |
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