PIC17C42A-33I/PQ Microchip Technology, PIC17C42A-33I/PQ Datasheet - Page 41
![IC MCU OTP 2KX16 PWM 44-MQFP](/photos/6/59/65984/150-44-pqfp_sml.jpg)
PIC17C42A-33I/PQ
Manufacturer Part Number
PIC17C42A-33I/PQ
Description
IC MCU OTP 2KX16 PWM 44-MQFP
Manufacturer
Microchip Technology
Series
PIC® 17Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC17C42A-16P.pdf
(241 pages)
3.PIC17C42A-16P.pdf
(4 pages)
Specifications of PIC17C42A-33I/PQ
Core Processor
PIC
Core Size
8-Bit
Speed
33MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
33
Program Memory Size
4KB (2K x 16)
Program Memory Type
OTP
Ram Size
232 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-MQFP, 44-PQFP
Processor Series
PIC17C
Core
PIC
Data Bus Width
8 bit
Data Ram Size
232 B
Interface Type
SCI, USART
Maximum Clock Frequency
33 MHz
Number Of Programmable I/os
33
Number Of Timers
8
Operating Supply Voltage
2.5 V to 6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ICE2000
Minimum Operating Temperature
- 40 C
For Use With
AC164316 - MODULE SKT MPLAB PM3 44MQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC17C42A-33I/PQ
Manufacturer:
Microchip Technology
Quantity:
10 000
- Current page: 41 of 241
- Download datasheet (2Mb)
6.7
The Program Counter (PC) is a 16-bit register. PCL, the
low byte of the PC, is mapped in the data memory. PCL
is readable and writable just as is any other register.
PCH is the high byte of the PC and is not directly
addressable. Since PCH is not mapped in data or pro-
gram memory, an 8-bit register PCLATH (PC high latch)
is used as a holding latch for the high byte of the PC.
PCLATH is mapped into data memory. The user can
read or write PCH through PCLATH.
The 16-bit wide PC is incremented after each instruc-
tion fetch during Q1 unless:
• Modified by GOTO, CALL, LCALL, RETURN, RETLW,
• Modified by an interrupt response
• Due to destination write to PCL by an instruction
“Skips” are equivalent to a forced NOP cycle at the
skipped address.
Figure 6-11 and Figure 6-12 show the operation of the
program counter for various situations.
FIGURE 6-11: PROGRAM COUNTER
FIGURE 6-12: PROGRAM COUNTER USING
1996 Microchip Technology Inc.
or RETFIE instruction
Last write
to PCLATH
15
15
7
Program Counter Module
3
5 4
13
PCH
PCLATH
8
Internal data bus <8>
12
OPERATION
THE CALL AND GOTO
INSTRUCTIONS
PCLATH
PCH
5
8
8
8 7
8 7
0
Opcode
PCL
8
PCL
8
0
0
Using Figure 6-11, the operations of the PC and
PCLATH for different instructions are as follows:
a)
b)
c)
d)
e)
Using Figure 6-12, the operation of the PC and
PCLATH for GOTO and CALL instructions is a follows:
The read-modify-write only affects the PCL with the
result. PCH is loaded with the value in the PCLATH.
For example, ADDWF PCL will result in a jump within the
current page. If PC = 03F0h, WREG = 30h and
PCLATH = 03h before instruction, PC = 0320h after the
instruction. To accomplish a true 16-bit computed jump,
the user needs to compute the 16-bit destination
address, write the high byte to PCLATH and then write
the low value to PCL.
The following PC related operations do not change
PCLATH:
a)
b)
c)
LCALL instructions:
An 8-bit destination address is provided in the
instruction (opcode). PCLATH is unchanged.
PCLATH
Opcode<7:0>
Read instructions on PCL:
Any instruction that reads PCL.
PCL
PCH
Write instructions on PCL:
Any instruction that writes to PCL.
8-bit data
PCLATH
Read-Modify-Write instructions on PCL:
Any instruction that does a read-write-modify
operation on PCL, such as ADDWF PCL.
Read:
Write:
RETURN instruction:
PCH
Stack<MRU>
CALL, GOTO instructions:
A 13-bit destination address is provided in the
instruction (opcode).
Opcode<12:0>
PC<15:13>
Opcode<12:8>
LCALL, RETLW, and RETFIE instructions.
Interrupt vector is forced onto the PC.
Read-modify-write instructions on PCL (e.g. BSF
PCL).
data bus
PCLATH
PCLATH
PCL
8-bit result
PCLATH
PCH
PCH
data bus
PCLATH<7:5>
PC<15:0>
data bus
PCL
PC <12:0>
PCLATH <4:0>
ALU or destination
PCH
data bus
PIC17C4X
PCL
ALU
DS30412C-page 41
PCL
Related parts for PIC17C42A-33I/PQ
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![PIC17C42A-16/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LDCC,44PIN,PLASTIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-16/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-25/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-25/PQ](/photos/6/59/65984/150-44-pqfp_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 44-MQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-25/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-16I/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-25I/PQ](/photos/6/59/65984/150-44-pqfp_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 44-MQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-25I/PT](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 44TQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-33I/PT](/photos/6/82/68251/c04-076_pt_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 44TQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-33/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-16I/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-33I/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-33/PQ](/photos/6/59/65984/150-44-pqfp_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 44-MQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-33/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC17C42A-16I/PQ](/photos/6/59/65984/150-44-pqfp_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX16 PWM 44-MQFP
Manufacturer:
Microchip Technology
Datasheet: