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2001 Microchip Technology Inc. DS30557G-page 1
PIC12C5XX
This document includes the programming
specifications for the following devices:
1.0 PROGRAMMING THE
PIC12C5XX
The PIC12C5XX can be programmed using a serial
method. Due to this serial programming, the
PIC12C5XX can be programmed while in the user’s
system, increasing design flexibility. This programming
specification applies to PIC12C5XX devices in all
packages.
1.1 Hardware Requirements
The PIC12C5XX requires two programmable power
supplies, one for V
DD (2.0V to 6.5V recommended) and
one for V
PP (12V to 14V). Both supplies should have a
minimum resolution of 0.25V.
1.2 Programming Mode
The Programming mode for the PIC12C5XX allows
programming of user program memory, special loca-
tions used for ID, and the configuration word for the
PIC12C5XX.
Pin Diagram
• PIC12C508 • PIC12C508A • PIC12CE518
• PIC12C509 • PIC12C509A • PIC12CE519
• rfPIC12C509AG
• rfPIC12C509AF
PDIP, SOIC, JW
8
7
6
5
1
2
3
4
VDD
GP5/OSC1/CLKIN
GP4/OSC2/CLKOUT
GP3/MCLR
/VPP
VSS
GP0
GP1
GP2/T0CKI
PIC12C5XX
PIC12C5XXA
PIC12CE5XXA
CERDIP, SOIC
VSS
GP2/T0CKI
XTAL
GP1
V
DD
GP5/OSC1/CLKIN
GP3/MCLR/
VPP
RFENIN
CLKOUT
PS/DATA
ASK
VDDRF
GP4/OSC2
LF
2
3
4
5
6
7
8
9
•1
17
16
14
13
12
11
10
15
18
rfPIC12C509AG
GP0
ANT2
NC
V
SSRF
ANT1
CERDIP, SSOP
VSS
GP2/T0CKI
DATAFSK
GP1
V
DD
GP5/OSC1/CLKIN
GP3/MCLR/
VPP
RFENIN
CLKOUT
PS/DATA
ASK
VDDRF
GP4/OSC2
LF
2
3
4
5
6
7
8
9
•1
19
18
16
15
14
13
12
17
20
rfPIC12C509AF
GP0
NC
V
SSRF
ANT2
ANT1
10
11
FSK
OUT
XTAL
In-Circuit Serial Programming
™
for PIC12C5XX OTP MCUs
