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PIC16C781 Datasheet(PDF) 7 Page - Microchip Technology |
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PIC16C781 Datasheet(HTML) 7 Page - Microchip Technology |
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7 / 186 page  2001 Microchip Technology Inc. Preliminary DS41171A-page 5 PIC16C781/782 1.0 DEVICE OVERVIEW This document contains device-specific information. Additional information may be found in the PICmicro™ Mid-Range Reference Manual (DS33023), which may be obtained from your local Microchip Sales Represen- tative or downloaded from the Microchip website. The Reference manual should be considered a comple- mentary document to this data sheet. The Reference manual is highly recommended reading for a better understanding of the device architecture and operation of the peripheral modules. This data sheet covers two devices: PIC16C781 and PIC16C782. Both devices come in a variety of 20-pin packages. The following figures are block diagrams of the PIC16C781 and the PIC16C782. FIGURE 1-1: PIC16C781 BLOCK DIAGRAM EPROM Program Memory 1K x 14 13 Data Bus 8 14 Program Bus Instruction reg Program Counter 8 Level Stack (13-bit) RAM File Registers 128 x 8 Direct Addr 7 RAM 9 Addr MUX Indirect Addr FSR reg STATUS reg MUX ALU W reg Power-up Timer Oscillator Start-up Timer Power-on Reset Watchdog Timer Instruction Decode & Control Timing Generation OSC1/ OSC2/ VDD, VSS PORTA PORTB RA4/T0CKI RA5/MCLR/VPP RB0/INT/AN4/VR 8 8 Reset Note 1: AVDD and AVSS pins are used by the following modules: C1, C2, OPA, DAC, ADC, and VR. 8-bit (PSMC) OPAMP 8-bit ADC Timer0 Comparator Comparator RA3/AN3/VREF1 RA2/AN2/VREF2 RA1/AN1/OPA- RA0/AN0/OPA+ 8 3 CLKOUT CLKIN RA6/OSC2/CLKOUT/T1CKI RA7/OSC1/CLKIN RB1/AN5/VDAC RB2/AN6 RB3/AN7/OPA RB4 RB5 RB6/C1/PSMC1A RB7/C2/PSMC1B/T1G (C2) (C1) (VR) Module DAC AVDD, AVSS(1) Addr Program Memory Read (PMR) (OPA) Low Voltage Detect Brown-out Internal RC Programmable Switch Mode Controller Oscillator Voltage Reference (PLVD) (TMR0) (TMR1) INTRC Programmable Timer1 |
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