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© 2007 Microchip Technology Inc. DS39624C-page 1
PIC18F8410/8490/8493 FAMILY
1.0 DEVICE OVERVIEW
This document includes the programming
specifications for the following devices:
2.0 PROGRAMMING OVERVIEW
OF THE PIC18F8410/8490/8493
FAMILY
PIC18F8410/8490/8493 family devices can be
programmed using the high-voltage In-Circuit Serial
Programming
TM
(ICSP
TM
) method.
This can be done with the device in the user’s system.
This programming specification applies to
PIC18F8410/8490/8493 family devices in all package
types.
2.1 Hardware Requirements
In High-Voltage ICSP mode, the
PIC18F8410/8490/8493 family devices require two
programmable power supplies: one for V
DD 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.
2.2 Pin Diagrams
The pin diagrams for the PIC18F8410/8490/8493 family
are shown in Figure 2-1 through Figure 2-4.
TABLE 2-1 PIN DESCRIPTIONS (DURING PROGRAMMING): PIC18F8410/8490/8493 FAMILY
• PIC18F6310 • PIC18F6390 • PIC18F6393
• PIC18F6410 • PIC18F6490 • PIC18F6493
• PIC18F8310 • PIC18F8390 • PIC18F8393
• PIC18F8410 • PIC18F8490 • PIC18F8493
Pin Name
During Programming
Pin Name Pin Type Pin Description
RG5/MCLR
/VPP VPP P Programming Enable
V
DD
(1)
VDD P Power Supply
VSS
(1)
VSS PGround
RB6/PGC PGC I Serial Clock
RB7/PGD PGD I/O Serial Data
Legend: I = Input, O = Output, P = Power
Note 1: All power supply (V
DD) and ground (VSS) must be connected.
Programming Specifications for PIC18F8410/8490/8493
Family Flash MCUs
