PIC16F685-I/ML Microchip Technology, PIC16F685-I/ML Datasheet - Page 27

• Manufacturer Part Number: PIC16F685-I/ML
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,20PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F685-I/ML

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164324 - MODULE SKT FOR MPLAB 8DFN/16QFNAC162061 - HEADER INTRFC MPLAB ICD2 20PINDVA1004 - DEVICE ADAPTER 8/14/20DIP
• Connectivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.0
2.1
The PIC16F631/677/685/687/689/690 has a 13-bit
program counter capable of addressing an 8K x 14
program memory space. Only the first 1K x 14
(0000h-03FFh) is physically implemented for the
PIC16F631, the first 2K x 14 (0000h-07FFh) for the
PIC16F677/PIC16F687,
(0000h-0FFFh) for the PIC16F685/PIC16F689/
PIC16F690. Accessing a location above these
boundaries will cause a wraparound. The Reset vector
is at 0000h and the interrupt vector is at 0004h (see
Figures 2-1 through 2-3).
FIGURE 2-1:
© 2008 Microchip Technology Inc.
On-Chip
Memory
CALL, RETURN
RETFIE, RETLW
MEMORY ORGANIZATION
Program Memory Organization
Interrupt Vector
Stack Level 1
Stack Level 2
Stack Level 8
Access 0-3FFh
Reset Vector
PC<12:0>
PROGRAM MEMORY MAP
AND STACK FOR THE
PIC16F631
Page 0
and
13
the
PIC16F631/677/685/687/689/690
first
0005h
03FFh
0000h
0004h
0400h
1FFFh
4K x 14
FIGURE 2-2:
FIGURE 2-3:
Program
On-Chip
On-Chip
Memory
Memory
CALL, RETURN
RETFIE, RETLW
CALL, RETURN
RETFIE, RETLW
Interrupt Vector
Access 0-FFFh
Interrupt Vector
Access 0-7FFh
Stack Level 1
Stack Level 2
Stack Level 8
Stack Level 1
Stack Level 2
Stack Level 8
Reset Vector
Reset Vector
PC<12:0>
PC<12:0>
PROGRAM MEMORY MAP
AND STACK FOR THE
PIC16F685/689/690
PROGRAM MEMORY MAP
AND STACK FOR THE
PIC16F677/PIC16F687
Page 0
Page 1
Page 0
13
13
DS41262E-page 25
0004h
0005h
07FFh
0800h
0FFFh
1000h
1FFFh
0000h
0000h
0004h
0005h
07FFh
0800h
1FFFh