PIC16F74-I/P Microchip Technology, PIC16F74-I/P Datasheet - Page 274

IC MCU FLASH 4KX14 A/D 40DIP

PIC16F74-I/P

Manufacturer Part Number
PIC16F74-I/P
Description
IC MCU FLASH 4KX14 A/D 40DIP
Manufacturer
Microchip Technology
Series
PIC® 16Fr

Specifications of PIC16F74-I/P

Core Size
8-Bit
Program Memory Size
7KB (4K x 14)
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Core Processor
PIC
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Number Of I /o
33
Program Memory Type
FLASH
Ram Size
192 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Controller Family/series
PIC16F
No. Of I/o's
33
Ram Memory Size
192Byte
Cpu Speed
20MHz
No. Of Timers
3
Package
40PDIP
Device Core
PIC
Family Name
PIC16
Maximum Speed
20 MHz
Operating Supply Voltage
5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
33
Interface Type
I2C/SPI/USART
On-chip Adc
8-chx8-bit
Number Of Timers
3
Processor Series
PIC16F
Core
PIC
Data Ram Size
192 B
Maximum Clock Frequency
20 MHz
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
ICE2000, DM163022
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
444-1001 - DEMO BOARD FOR PICMICRO MCU
Eeprom Size
-
Lead Free Status / Rohs Status
 Details

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PICmicro MID-RANGE MCU FAMILY
16.6
DS31016A-page 16-24
Design Tips
Question 1:
Answer 1:
Ensure that you are using the correct SPI mode for that device. This SPI supports two of the four
SPI modes so ensure that the SPI device that you are trying to interface to is compatible with one
of these two modes. Check the clock polarity and the clock phase.
If the device is not compatible, switch to one of the Microchip devices that has the SSP module,
and that should solve this.
Question 2:
Answer 2:
This SSP module does not have master mode fully automated in hardware, see Application Note
AN578 for software which uses the SSP module to implement master mode. If you require a fully
automated Hardware implementation of I
Card for devices that have the Master SSP module.
Question 3:
Answer 3:
Ensure that you set the CKP bit to release the I
Note:
At the time of printing only the High-end family of devices (PIC17CXXX) have
devices with the Master SSP module implemented.
Using SPI mode, I do not seem able to talk to an SPI device.
Using I
Using I
transmit.
2
2
C mode, I do not seem able to make the master mode work.
C mode, I write data to the SSPBUF register, but the data did not
2
C master mode, please refer to the Microchip Line
2
C clock.
1997 Microchip Technology Inc.

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