PIC16F874-04/PT Microchip Technology, PIC16F874-04/PT Datasheet - Page 71
![IC MCU FLASH 4KX14 EE 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC16F874-04/PT
Manufacturer Part Number
PIC16F874-04/PT
Description
IC MCU FLASH 4KX14 EE 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F873-04SO.pdf
(218 pages)
4.PIC16F873-04SO.pdf
(5 pages)
5.PIC16F873-04SO.pdf
(5 pages)
Specifications of PIC16F874-04/PT
Core Size
8-Bit
Program Memory Size
7KB (4K x 14)
Oscillator Type
External
Core Processor
PIC
Speed
4MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
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
Operating Temperature
0°C ~ 70°C
Package / Case
44-TQFP, 44-VQFP
Controller Family/series
PIC16F
No. Of I/o's
33
Eeprom Memory Size
128Byte
Ram Memory Size
192Byte
Cpu Speed
4MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F874-04/PT
Manufacturer:
MICROCHIP
Quantity:
4 500
Company:
Part Number:
PIC16F874-04/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F873-04SO PDF datasheet #3
- PIC16F873-04SO PDF datasheet #4
- PIC16F873-04SO PDF datasheet #5
- Current page: 71 of 688
- Download datasheet (3Mb)
Section 4. Architecture
Instruction Pipeline:
The instruction pipeline is a two-stage pipeline which overlaps the fetch and execution of instruc-
tions. The fetch of the instruction takes one T
, while the execution takes another T
. However,
CY
CY
due to the overlap of the fetch of current instruction and execution of previous instruction, an
instruction is fetched and another instruction is executed every single T
.
CY
Single Cycle Instructions:
With the Program Memory bus being 14-bits wide, the entire instruction is fetched in a single
machine cycle (T
). The instruction contains all the information required and is executed in a
CY
single cycle. There may be a one cycle delay in execution if the result of the instruction modified
the contents of the Program Counter. This requires the pipeline to be flushed and a new instruc-
tion to be fetched.
Reduced Instruction Set:
When an instruction set is well designed and highly orthogonal (symmetric), fewer instructions
are required to perform all needed tasks. With fewer instructions, the whole set can be more rap-
idly learned.
Register File Architecture:
The register files/data memory can be directly or indirectly addressed. All special function regis-
ters, including the program counter, are mapped in the data memory.
Orthogonal (Symmetric) Instructions:
Orthogonal instructions make it possible to carry out any operation on any register using any
addressing mode. This symmetrical nature and lack of “special instructions” make programming
simple yet efficient. In addition, the learning curve is reduced significantly. The mid-range instruc-
tion set uses only two non-register oriented instructions, which are used for two of the cores fea-
tures. One is the SLEEP instruction which places the device into the lowest power use mode. The
other is the CLRWDT instruction which verifies the chip is operating properly by preventing the
on-chip Watchdog Timer (WDT) from overflowing and resetting the device.
4
1997 Microchip Technology Inc.
DS31004A-page 4-3
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