PIC16F874A-E/L Microchip Technology, PIC16F874A-E/L Datasheet - Page 641
![IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LDCC,44PIN,PLASTIC](/photos/6/63/66325/150-44-plcc_sml.jpg)
PIC16F874A-E/L
Manufacturer Part Number
PIC16F874A-E/L
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LDCC,44PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16C770-ISO.pdf
(8 pages)
4.PIC16F873A-ISO.pdf
(234 pages)
5.PIC16F873A-ISO.pdf
(6 pages)
6.PIC16F873A-ISO.pdf
(4 pages)
7.PIC16F873A-ISO.pdf
(6 pages)
8.PIC16F873A-ISO.pdf
(4 pages)
9.PIC16F873A-ISO.pdf
(22 pages)
Specifications of PIC16F874A-E/L
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
7KB (4K x 14)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
192 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DVA16XL441 - ADAPTER DEVICE ICE 44PLCC309-1040 - ADAPTER 44-PLCC ZIF TO 40-DIP309-1039 - ADAPTER 44-PLCC TO 40-DIP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F874A-E/L
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16C770-ISO PDF datasheet #3
- PIC16F873A-ISO PDF datasheet #4
- PIC16F873A-ISO PDF datasheet #5
- PIC16F873A-ISO PDF datasheet #6
- PIC16F873A-ISO PDF datasheet #7
- PIC16F873A-ISO PDF datasheet #8
- PIC16F873A-ISO PDF datasheet #9
- Current page: 641 of 688
- Download datasheet (3Mb)
32.3.3
32.3.4
1997 Microchip Technology Inc.
MPLINK Linker
MPLIB Librarian
MPLINK is a linker for the Microchip C compiler, MPLAB-C, and the Microchip relocatable assem-
bler, MPASM. MPLINK is introduced with MPLAB-C v2.00 and can only be used with these or
later versions.
MPLINK allows you to produce modular, re-usable code with MPLAB-C and MPASM. Control
over the linking process is accomplished through a linker “script” file and with command line
options. MPLINK ensures that all symbolic references are resolved and that code and data fit into
the available PICmicro device.
MPLINK combines multiple input object modules generated by MPLAB-C or MPASM, into a sin-
gle executable file. The actual addresses of data and the location of functions will be assigned
when MPLINK is executed. This means that you will instruct MPLINK to place code and data
somewhere within the named regions of memory, not to specific physical locations.
Once the linker knows about the ROM and RAM memory regions available in the target PICmicro
device and it analyzes all the input files, it will try to fit the application’s routines into ROM and
assign it’s data variables into available RAM. If there is too much code or too many variables to
fit, MPLINK will give an error message.
MPLINK also provides flexibility for specifying that certain blocks of data memory are re-usable,
so that different routines (which never call each other and don’t depend on this data to be
retained between execution) can share limited RAM space.
MPLIB is a librarian for use with COFF object modules created using either MPASM v2.0,
MPASMWIN v2.0, or MPLAB-C v2.0 or later.
MPLIB manages the creation and modification of library files. A library file is a collection of object
modules that are stored in a single file. There are several reasons for creating library files:
• Libraries make linking easier. Since library files can contain many object files, the name of
• Libraries help keep code small. Since a linker only uses the required object files contained
• Libraries make projects more maintainable. If a library is included in a project, the addition
• Libraries help convey the purpose of a group of object modules. Since libraries can group
a library file can be used instead of the names of many separate object when linking.
in a library, not all object files which are contained in the library necessarily wind up in the
linker’s output module.
or removal of calls to that library will not require a change to the link process.
together several related object modules, the purpose of a library file is usually more under-
standable that the purpose of its individual object modules. For example, the purpose of a
file named “math.lib” is more apparent that the purpose of 'power.o', 'ceiling.o', and 'floor.o'.
Section 32. Development Tools
DS31032A-page 32-7
32
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