
2002 Microchip Technology Inc.
Preliminary
DS40143D-page 1
PIC16C55X
Devices Included in this Data Sheet:
Referred to collectively as PIC16C55X.
PIC16C554
PIC16C557
PIC16C558
High Performance RISC CPU:
Only 35 instructions to learn
All single-cycle instructions (200 ns), except for
program branches which are two-cycle
Operating speed:
- DC - 20 MHz clock input
- DC - 20 ns instruction cycle
Interrupt capability
16-18 special function hardware registers
8-level deep hardware stack
Direct, Indirect and Relative Addressing modes
Peripheral Features:
13-22 I/O pins with individual direction control
- Pull-up resistors on PORTB
High current sink/source for direct LED drive
Timer0: 8-bit timer/counter with 8-bit programma-
ble prescaler
Pin Diagram
Device
Program
Memory
Data Memory
PIC16C554
512
80
PIC16C557
2 K
128
PIC16C558
2 K
128
RA1
RA0
OSC2/CLKOUT
V
DD
RB7
RB6
RB5
RB4
OSC1/CLKIN
RA2
RA3
MCLR/Vpp
V
SS
RB0/INT
RB1
RB2
RB3
RA4/T0CKI
PIC16C554/558
PDIP, SOIC, Windowed CERDIP
SSOP
2
3
4
5
6
7
8
9
1
18
17
15
14
13
12
11
10
16
RA1
RA0
OSC2/CLKOUT
V
DD
RB7
RB6
RB5
OSC1/CLKIN
RA2
RA3
MCLR/V
PP
V
SS
RB1
RB2
RA4/T0CKI
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/V
PP
V
SS
RB1
RB2
RA4/T0CKI
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
V
SS
RA1
RA0
OSC2/CLKOUT
V
DD
RB7
RB6
RB5
RB4
OSC1/CLKIN
RA2
RA3
MCLR/Vpp
V
SS
RB0/INT
RB1
RB2
RB3
RA4/T0CKI
PIC16C554/558
2
3
4
5
6
7
8
9
1
20
19
17
15
14
13
12
11
18
V
SS
10
V
DD
16
EPROM-Based 8-Bit CMOS Microcontrollers