AER04220HN - Brand New NXP Semiconductors IC Chips
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GENERAL DESCRIPTION
The P83Cx80; P87C380 denotes the following types: P83C880, P83C180, P83C280, P83C380 and P87C380, hereafter referred to as the P83C880, are monitor microcontrollers of the 80C51 family, with DDC (DDC1, DDC2B, DDC2B+ and DDC2AB) interface to the PC host. The internal hardware can separate composite sync signals and detect the various display modes. The digital/analog voltage outputs can be used to control the video and deflection functions the monitor.
This data sheet details the specific properties of the P83C880, P83C180, P83C280, P83C380 and P87C380. The shared characteristics of the 80C51 family of microcontrollers are described in “Data Handbook IC20”, which should be read in conjunction with this data sheet.FEATURES
• 80C51 type core
• On-chip oscillator with a maximum frequency of 16 MHz (maximum 0.75 µs 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 I2C-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 I2C-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. -
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- Last Updated: 2024/06/03 11:03 +0800
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