Microchip PIC18F6680 Manual
Microchip
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PIC18F6680
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2010 Microchip Technology Inc. DS39606E-page 1
PIC18FXX80/XX85
1.0 DEVICE OVERVIEW
This document includes the programming
specifications for the following devices:
2.0 PROGRAMMING OVERVIEW
PIC18FXX80/XX85 devices can be programmed using
either the high-voltage In-Circuit Serial ProgrammingTM
(ICSPTM) method, or the low-voltage ICSP method.
Both of these programming methods can be done with
the device in the user’s system. The low-voltage ICSP
method is slightly different than the high-voltage
method, and these differences are noted where appli-
cable. This programming specification applies to
PIC18FXX80/XX85 devices in all package types.
2.1 Hardware Requirements
2.1.1 HIGH-VOLTAGE ICSP
PROGRAMMING
In High-Voltage ICSP mode, these devices require two
programmable power supplies: one for VDD and one for
MCLR/VPP. Both supplies should have a minimum
resolution of 0.25V. Refer to Section 6.0 “AC/DC
Characteristics Timing Requirements for Program/
Verify Test Mode” for additional hardware parameters.
2.1.2 LOW-VOLTAGE ICSP
PROGRAMMING
In Low-Voltage ICSP mode, these devices can be pro-
grammed using a VDD source in the operating range.
This only means that MCLR/VPP does not have to be
brought to a different voltage but can instead be left at the
normal operating voltage. Refer to Section 6.0 “AC/DC
Characteristics Timing Requirements for Program/
Verify Test Mode” for additional hardware parameters.
2.2 Pin Diagrams
The pin diagrams for the PIC18FXX80/XX85 family are
shown in Figure 2-1, Figure 2-2 and Figure 2-3. The
pin descriptions of these diagrams do not represent the
complete functionality of the device types. Users
should refer to the appropriate device data sheet for
complete pin descriptions.
TABLE 2-1: PIN DESCRIPTIONS (DURING PROGRAMMING): PIC18FXX80/XX85
• PIC18F6585 • PIC18F6680
• PIC18F8585 • PIC18F8680
Pin Name
During Programming
Pin Name Pin Type Pin Description
MCLR/VPP/RA5 VPP P Programming Enable
VDD(2) VDD P Power Supply
VSS(2) VSS P Ground
AVDD(2) AVDD P Analog Power Supply
AVSS(2) AVSS P Analog Ground
RB5 PGM I Low-Voltage ICSP™ Input when LVP Configuration bit equals ‘1’ (1)
RB6 PGC I Serial Clock
RB7 PGD I/O Serial Data
OSC1 OSC1 I Oscillator Input (needs to be pulled high during programming.)
Legend: I = Input, O = Output, P = Power
Note 1: See Section 5.3 “Low-Voltage Programming (LVP) Bit” for more detail.
2: All power supplies and ground must be connected.
Flash Microcontroller Programming Specification
PIC18FXX80/XX85
DS39606E-page 2 2010 Microchip Technology Inc.
FIGURE 2-1: 64-PIN TQFP PACKAGE DIAGRAM FOR PIC18F6X8X
PIC18F6X8X
1
2
3
4
5
6
7
8
9
10
11
12
13
14
38
37
36
35
34
33
50 49
17 18 19 20 21 22 23 24 25 26
RE2/CS
RE3
RE4
RE5/P1C
RE6/P1B
RE7/CCP2(1)
RD0/PSP0
VDD
VSS
RD1/PSP1
RD2/PSP2
RD3/PSP3
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7
RE1/WR
RE0/RD
RG0/CANTX1
RG1/CANTX2
RG2/CANRX
RG3
RG5/MCLR/VPP
RG4/P1D
VSS
VDD
RF7/SS
RF6/AN11/C1IN-
RF5/AN10/C1IN+/CV
REF
RF4/AN9/C2IN-
RF3/AN8/C2IN+
RF2/AN7/C1OUT
RB0/INT0
RB1/INT1
RB2/INT2
RB3/INT3
RB4/KBI0
RB5/KBI1/PGM
RB6/KBI2/PGC
VSS
OSC2/CLKO/RA6
OSC1/CLKI
VDD
RB7/KBI3/PGD
RC4/SDI/SDA
RC3/SCK/SCL
RC2/CCP1/P1A
RF0/AN5
RF1/AN6/C2OUT
AVDD
AVSS
RA3/AN3/VREF+
RA2/AN2/VREF-
RA1/AN1
RA0/AN0
VSS
VDD
RA4/T0CKI
RA5/AN4/LVDIN
RC1/T1OSI/CCP2(1)
RC0/T1OSO/T13CKI
RC7/RX/DT
RC6/TX/CK
RC5/SDO
15
16
31
40
39
27 28 29 30 32
48
47
46
45
44
43
42
41
54 53 52 5158 57 56 5560 59
64 63 62 61
TQFP
Note 1: CCP2 pin placement depends on the Processor mode settings.
Produkt Specifikationer
| Mærke: | Microchip |
| Kategori: | Ikke kategoriseret |
| Model: | PIC18F6680 |
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