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2002 Microchip Technology Inc. DS30261D-page 1
PIC16C55X
This document includes the
programming specifications for the
following devices:
• PIC16C554
• PIC16C557
• PIC16C558
1.0 PROGRAMMING THE
PIC16C55X
The PIC16C55X can be programmed using a serial
method. In Serial mode the PIC16C55X can be pro-
grammed while in the user’s system. This allows for
increased design flexibility.
1.1 Hardware Requirements
The PIC16C55X 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 PIC16C55X allows
programming of user program memory, special loca-
tions used for ID, and the configuration word for the
PIC16C55X.
Pin Diagrams
RA1
RA0
OSC2/CLKOUT
V
DD
RB7
RB6
RB5
RB4
OSC1/CLKIN
RA2
RA3
MCLR
VSS
RB0/INT
RB1
RB2
RB3
RA4/T0CKI
PIC16C554/558
RA1
RA0
OSC2/CLKOUT
V
DD
RB7
RB6
RB5
RB4
OSC1/CLKIN
RA2
RA3
MCLR
VSS
VSS
RB0/INT
RB1
RB2
RA4/T0CKI
PIC16C554/558
RB3RB3
V
DD
PDIP, SOIC, Windowed CERDIP
SSOP
2
3
4
5
6
7
8
9
10
•1
2
3
4
5
6
7
8
9
•1
19
18
16
15
14
13
12
11
17
18
17
15
14
13
12
11
10
16
20
RA1
RA0
OSC2/CLKOUT
V
DD
RB7
RB6
RB5
OSC1/CLKIN
RA2
RA3
MCLR/
VPP
VSS
RB1
RB2
T0CKI/RA4
PIC16C557
RB4
RB3
2
3
4
5
6
7
8
9
10
•1
19
18
16
15
14
13
12
11
17
20
21
22
23
24
25
26
27
28
N/C
RA5
RB0/INT
RC7
RC6
RC5
RC4
RC3
RC2
RC1
RC0
PDIP, SOIC, Windowed CERDIP
RA1
RA0
OSC2/CLKOUT
V
DD
RB7
RB6
RB5
OSC1/CLKIN
RA2
RA3
MCLR/
VPP
VSS
RB1
RB2
T0CKI/RA4
PIC16C557
RB4
RB3
2
3
4
5
6
7
8
9
10
•1
19
18
16
15
14
13
12
11
17
20
21
22
23
24
25
26
27
28
RA5
RB0/INT
RC7
RC6
RC5
RC4
RC3
RC2
RC1
RC0
SSOP
VSS
EPROM Memory Programming Specification
