PIC16F877-04/PT Microchip Technology, PIC16F877-04/PT Datasheet - Page 93

• Manufacturer Part Number: PIC16F877-04/PT
• Description: IC MCU FLASH 8KX14 EE 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F877-04/PT

• Core Size: 8-Bit
• Program Memory Size: 14KB (8K x 14)
• 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: 256 x 8
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• 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: 256Byte
• Ram Memory Size: 368Byte
• Cpu Speed: 4MHz
• No. Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 9-21:
FIGURE 9-22:
2001 Microchip Technology Inc.
SDA
SCL
SEN
BCLIF
S
SSPIF
BCLIF
S
SSPIF
SDA
SCL
SEN
BUS COLLISION DURING START CONDITION (SCL = 0)
BRG RESET DUE TO SDA COLLISION DURING START CONDITION
SDA pulled low by other master.
Reset BRG and assert SDA.
’0’
’0’
SCL = 0 before BRG time-out,
Bus collision occurs, Set BCLIF
’0’
Set SEN, enable START
sequence if SDA = 1, SCL = 1
Less than T
BRG
SDA = 0, SCL = 1
SDA = 0, SCL = 1
T
BRG
SDA = 0, SCL = 1
Set SSPIF
Set SEN, enable START
sequence if SDA = 1, SCL = 1
s
Set S
T
T
BRG
BRG
Set SSPIF
SCL = 0 before SDA = 0,
Bus collision occurs, Set BCLIF
SCL pulled low after BRG
Time-out
Interrupts cleared
in software
’0’
’0’
Interrupts cleared
in software
PIC16F87X
DS30292C-page 91