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© 2009 Microchip Technology Inc. DS39752B-page 1
PIC18F1230/1330
1.0 DEVICE OVERVIEW
This document includes the programming specifications
for the following devices:
2.0 PROGRAMMING OVERVIEW
PIC18F1230/1330 devices can be programmed using
the high-voltage In-Circuit Serial Programming™
(ICSP™) method. This method can be done with the
device in the user’s system. This programming
specification applies to PIC18F1230/1330 devices in
all package types.
2.1 Hardware Requirements
In High-Voltage ICSP mode, PIC18F1230/1330
devices require two programmable power supplies:
one for VDD and one for MCLR/VPP/RA5/FLTA. 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 PIC18F1230/1330 family are
shown in Figure 2-1, Figure 2-2 and Figure 2-3.
TABLE 2-1: PIN DESCRIPTIONS (DURING PROGRAMMING): PIC18F1230/1330
• PIC18F1230 • PIC18F1330
• PIC18F1330-ICD
Pin Name
During Programming
Pin Name Pin Type Pin Description
MCLR
/VPP/RA5/FLTA VPP P Programming Enable
VDD
(1)
VDD P Power Supply
VSS
(1)
VSS P Ground
RB6 PGC I Serial Clock
RB7 PGD I/O Serial Data
Legend: I = Input, O = Output, P = Power
Note 1: All power supply (V
DD) and ground (VSS) pins must be connected.
Flash Microcontroller Programming Specification
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