PIC16F688 Datasheet, PDF (7/174 Pages) Microchip Technology – 14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F688
1.0 DEVICE OVERVIEW
This document contains device specific information for
the PIC16F688. Additional information may be found in
the “PICmicro^® Mid-Range MCU Family Reference
Manual” (DS33023), downloaded from the Microchip
web site. The Reference Manual should be considered
a complementary document to this data sheet and is
highly recommended reading for a better understand-
ing of the device architecture and operation of the
peripheral modules.
The PIC16F688 is covered by this data sheet. It is
available in 14-pin PDIP, SOIC and TSSOP packages.
Figure 1-1 shows a block diagram of the PIC16F688
device. Table 1-1 shows the pinout description.
FIGURE 1-1:
PIC16F688 BLOCK DIAGRAM
Configuration
Flash
4k x 14
Program
Memory
Program ₁₄
Bus
Instruction reg
INT
13
Program Counter
8
Data Bus
8-Level Stack
(13 bit)
RAM
256 bytes
File
Registers
Direct Addr
RAM Addr
9
Addr MUX
7
Indirect
8
Addr
FSR Reg
Status Reg
8
Instruction
Decode &
Control
OSC1/CLKIN
Timing
Generation
OSC2/CLKOUT
Internal
Oscillator
Block
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Brown-out
Detect
T1G
MCLR ^{VDD VSS}
T1CKI
T0CKI
Timer0
Timer1
3
MUX
ALU
8
W Reg
RX/DT
TX/CK
EUSART
PORTA
RA0
RA1
RA2
RA3
RA4
RA5
PORTC
RC0
RC1
RC2
RC3
RC4
RC5
VREF
Analog-to-Digital Converter
2
Analog Comparators
and Reference
AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 C1IN- C1IN+ C1OUT C2IN- C2IN+ C2OUT
EEDAT
8 ^{256 bytes}
DATA
EEPROM
EEADDR
 2004 Microchip Technology Inc.
Preliminary
DS41203B-page 5