PIC16F84A-04I/SS Microchip Technology, PIC16F84A-04I/SS Datasheet - Page 248

• Manufacturer Part Number: PIC16F84A-04I/SS
• Description: IC MCU FLASH 1KX14 EE 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F84A-04I/SS

• Core Size: 8-Bit
• Program Memory Size: 1.75KB (1K x 14)
• Core Processor: PIC
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 13
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 68 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SSOP
• Controller Family/series: PIC16F
• No. Of I/o's: 13
• Eeprom Memory Size: 64Byte
• Ram Memory Size: 68Byte
• Cpu Speed: 4MHz
• No. Of Timers: 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOPI3-DB16F84A - BOARD DAUGHTER ICEPIC3AC164307 - MODULE SKT FOR PM3 28SSOPAC164018 - MODULE SKT PROMATEII 20SSOP
• Data Converters: -
• Connectivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: PIC16F84A-04I/SSR; PIC16F84A-04I/SSR

PICmicro MID-RANGE MCU FAMILY
15.6
DS31015A-page 15-28
Design Tips
Question 1:
Answer 1:
Ensure that you are using the correct SPI mode for that device. This SPI supports all four SPI
modes so you should be able to get it to function. Check the clock polarity and the clock phase.
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
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 Card
2
C clock.
1997 Microchip Technology Inc.