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PIC16F8X Datasheet(PDF) 8 Page - Microchip Technology |
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PIC16F8X Datasheet(HTML) 8 Page - Microchip Technology |
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8 / 128 page  PIC16F8X DS30430D-page 8 1996-2013 Microchip Technology Inc. PIC16CXX devices contain an 8-bit ALU and working register. The ALU is a general purpose arithmetic unit. It performs arithmetic and Boolean functions between data in the working register and any register file. The ALU is 8-bits wide and capable of addition, subtraction, shift and logical operations. Unless otherwise mentioned, arithmetic operations are two's complement in nature. In two-operand instructions, typically one operand is the working register (W register), and the other operand is a file register or an immediate constant. In single operand instructions, the operand is either the W register or a file register. The W register is an 8-bit working register used for ALU operations. It is not an addressable register. Depending on the instruction executed, the ALU may affect the values of the Carry (C), Digit Carry (DC), and Zero (Z) bits in the STATUS register. The C and DC bits operate as a borrow and digit borrow out bit, respectively, in subtraction. See the SUBLW and SUBWF instructions for examples. A simplified block diagram for the PIC16F8X is shown in Figure 3-1, its corresponding pin description is shown in Table 3-1. FIGURE 3-1: PIC16F8X BLOCK DIAGRAM Flash/ROM Program Memory Program Counter 13 Program Bus Instruction reg 8 Level Stack (13-bit) Direct Addr 8 Instruction Decode & Control Timing Generation OSC2/CLKOUT OSC1/CLKIN Power-up Timer Oscillator Start-up Timer Power-on Reset Watchdog Timer MCLR VDD, VSS W reg ALU MUX I/O Ports TMR0 STATUS reg FSR reg Indirect Addr RA3:RA0 RB7:RB1 RA4/T0CKI EEADR EEPROM Data Memory 64 x 8 EEDATA Addr Mux RAM Addr RAM File Registers EEPROM Data Memory Data Bus 5 7 7 PIC16F84/CR84 1K x 14 PIC16F83/CR83 512 x 14 PIC16F83/CR83 36 x 8 PIC16F84/CR84 68 x 8 RB0/INT 14 8 8 |
Similar Part No. - PIC16F8X_13 |
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Similar Description - PIC16F8X_13 |
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