PIC17C4X
High-Performance 8-Bit CMOS EPROM/ROM Microcontroller
Devices included in this data sheet:
Pin Diagram
• PIC17CR42
• PIC17C42A
• PIC17C43
• PIC17CR43
• PIC17C44
• PIC17C42†
PDIP, CERDIP, Windowed CERDIP
VDD
RC0/AD0
RC1/AD1
RC2/AD2
RC3/AD3
RC4/AD4
RC5/AD5
RC6/AD6
RC7/AD7
VSS
1
2
3
4
5
6
7
8
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
RD0/AD8
RD1/AD9
RD2/AD10
RD3/AD11
RD4/AD12
RD5/AD13
RD6/AD14
RD7/AD15
MCLR/VPP
VSS
RE0/ALE
RE1/OE
RE2/WR
TEST
RA0/INT
RA1/T0CKI
RA2
9
10
11
12
13
14
15
16
17
18
19
20
Microcontroller Core Features:
RB0/CAP1
RB1/CAP2
RB2/PWM1
RB3/PWM2
RB4/TCLK12
RB5/TCLK3
RB6
• Only 58 single word instructions to learn
• All single cycle instructions (121 ns) except for
program branches and table reads/writes which
are two-cycle
RB7
RA3
RA4/RX/DT
RA5/TX/CK
OSC1/CLKIN
OSC2/CLKOUT
• Operating speed:
- DC - 33 MHz clock input
- DC - 121 ns instruction cycle
✯
✯
• TMR2: 8-bit timer/counter
• TMR3: 16-bit timer/counter
Program Memory
• Universal Synchronous Asynchronous Receiver
Transmitter (USART/SCI)
Device
Data Memory
EPROM
ROM
PIC17CR42
PIC17C42A
PIC17C43
PIC17CR43
PIC17C44
PIC17C42†
-
2K
232
232
454
454
454
232
Special Microcontroller Features:
2K
4K
-
-
-
• Power-on Reset (POR), Power-up Timer (PWRT)
and Oscillator Start-up Timer (OST)
4K
-
• Watchdog Timer (WDT) with its own on-chip RC
oscillator for reliable operation
8K
2K
-
• Code-protection
• Hardware Multiplier
(Not available on the PIC17C42)
• Power saving SLEEP mode
• Selectable oscillator options
• Interrupt capability
CMOS Technology:
• 16 levels deep hardware stack
• Low-power, high-speed CMOS EPROM/ROM
technology
• Direct, indirect and relative addressing modes
• Internal/External program memory execution
• 64K x 16 addressable program memory space
• Fully static design
• Wide operating voltage range (2.5V to 6.0V)
• Commercial and Industrial Temperature Range
• Low-power consumption
Peripheral Features:
• 33 I/O pins with individual direction control
• High current sink/source for direct LED drive
- < 5 mA @ 5V, 4 MHz
- RA2 and RA3 are open drain, high voltage
(12V), high current (60 mA), I/O
- 100 µA typical @ 4.5V, 32 kHz
- < 1 µA typical standby current @ 5V
• Two capture inputs and two PWM outputs
- Captures are 16-bit, max resolution 160 ns
- PWM resolution is 1- to 10-bit
• TMR0: 16-bit timer/counter with 8-bit programma-
ble prescaler
• TMR1: 8-bit timer/counter
†NOT recommended for new designs, use 17C42A.
1996 Microchip Technology Inc.
DS30412C-page 1
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