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P87C380(OTP) Datasheet(PDF) 7 Page - NXP Semiconductors |
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P87C380(OTP) Datasheet(HTML) 7 Page - NXP Semiconductors |
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7 / 84 page /2129/7/P87C380(OTP).png) 1997 Dec 12 7 Philips Semiconductors Product specification Microcontrollers for monitors with DDC interface, auto-sync detection and sync proc. P83Cx80; P87C380 5.2 Pin description Table 2 Pin description for SDIP42 (SOT270-1) SYMBOL PIN DESCRIPTION PWM9/PATOUT/P3.1 41 PWM9 to PWM0: 8-bit Pulse Width Modulation outputs 9 to 0. Pin 41 and 42 can also be used as the output pin of the test pattern display PATOUT and clamping out signal CLAMP respectively; PATOUT and CLAMP always have the higher priority. Alternative function general I/O ports; Port 3: P3.1 to P3.0 and Port 2: P2.7 to P2.0. PWM8/CLAMP/P3.0 42 PWM7/P2.7 1 PWM6/P2.6 2 PWM5/P2.5 3 PWM4/P2.4 4 PWM3/P2.3 5 PWM2/P2.2 6 PWM1/P2.1 7 PWM0/P2.0 8 XTAL1 9 Oscillator input pin for system clock. XTAL2 10 Oscillator output pin for system clock. VDD 11 Digital power supply (+5 V). VSS 12 Digital ground. HSYNCin/PROG 13 Horizontal sync input pin. During OTP programming it is used as the program pulse input (PROG). HSYNCout/P1.5 14 Horizontal sync output pin; alternative function: general I/O port P1.5. CSYNCin/P1.6 15 Composite sync input pin; alternative function: general I/O port P1.6. VSYNCin/OE 16 Vertical sync input pin. During OTP programming it is used as output strobe (OE). VSYNCout/P1.4 17 Vertical sync output pin; alternative function: general I/O port P1.4. P0.7 to P0.0 18 to 25 Port 0: general I/O ports; capability to drive LED. RESET 26 Reset input; active HIGH initializes the device. DAC0 to DAC3 27 to 30 8-bit DAC analog voltage output pins; output range: 0 to 5 V. VSSA 31 Analog ground for DAC and ADC. VDDA 32 Analog power supply (+5 V) for DAC and ADC. ADC0/P3.2 33 ADC analog input pins; alternative function: general I/O ports P3.2 and P3.3. ADC1/P3.3 34 INT1/VPP 35 External interrupt input pin. During OTP programming it is used as programming supply voltage pin; VPP = 12.75 V. SDA1/P1.3 36 I2C-bus serial data I/O port for the DDC2 interface; alternative function: general I/O port P1.3. SCL1/P1.2 37 I2C-bus serial clock I/O port for the DDC2 interface; alternative function: general I/O port P1.2. SDA/P1.1 38 I2C-bus serial data I/O port; alternative function: general I/O port P1.1. SCL/P1.0 39 I2C-bus serial clock I/O port; alternative function: general I/O port P1.0. PWM10/P1.7 40 14-bit Pulse Width Modulation output 10; alternative function: general I/O port P1.7. |
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