PIC16C781 Datasheet, PDF (8/186 Pages) Microchip Technology – 8-Bit CMOS Microcontrollers with A/D, D/A, OPAMP, Comparators and PSMC

PIC16C781/782
FIGURE 1-2:
PIC16C782 BLOCK DIAGRAM
EPROM
Program
Memory
2K x 14
13
Program Counter
8 Level Stack
(13-bit)
Program
Bus
14
Instruction reg
Program Memory
Read (PMR)
Direct Addr ⁷
8
Data Bus ⁸
RAM
File
Registers
128 x 8
RAM
Addr
9
Addr MUX
Indirect
8 Addr
FSR reg
STATUS reg
OSC1/
CLKIN
Instruction
Decode &
Control
Timing
Generation
OSC2/
CLKOUT
Internal
RC
Oscillator
INTRC
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Brown-out
Reset
3
MUX
ALU
8
W reg
Timer1
(TMR1)
Voltage Reference
Module
(VR)
Timer0
TMR0
Comparator
C1
Comparator
C2
8-bit ADC
PORTA
PORTB
RA0/AN0/OPA+
RA1/AN1/OPA-
RA2/AN2/VREF2
RA3/AN3/VREF1
RA4/T0CKI
RA5/MCLR/VPP
RA6/OSC2/CLKOUT/T1CKI
RA7/OSC1/CLKIN
RB0/INT/AN4/VR
RB1/AN5/VDAC
RB2/AN6
RB3/AN7/OPA
RB4
RB5
RB6/C1/PSMC1A
RB7/C2/PSMC1B/T1G
AVSS, AVSS⁽¹⁾
VDD, VSS
Programmable
Low Voltage Detect
PLVD
Programmable Switch
Mode Controller
PSMC
OPAMP
OPA
8-bit
DAC
Note 1: AVDD and AVSS pins are used for the following modules: C1, C2, OPA, DAC, ADC, and VR.
DS41171A-page 6
Preliminary
 2001 Microchip Technology Inc.