PIC16F721-I/SO Microchip Technology, PIC16F721-I/SO Datasheet - Page 157

• Manufacturer Part Number: PIC16F721-I/SO
• Description: MCU PIC 4K FLASH 20-SOIC
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F721-I/SO

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Core Processor: PIC
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Number Of I /o: 17
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (0.300", 7.50mm Width)
• Controller Family/series: PIC16F
• No. Of I/o's: 18
• Ram Memory Size: 256Byte
• Cpu Speed: 16MHz
• No. Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

17.2.10
When the CKP bit is cleared, the SCL output is held low
once it is sampled low. Therefore, the CKP bit will not
stretch the SCL line until an external I
has already asserted the SCL line low. The SCL output
will remain low until the CKP bit is set and all other
devices on the I
ensures that a write to the CKP bit will not violate the
minimum high time requirement for SCL
FIGURE 17-14:
 2010 Microchip Technology Inc.
SSPCON
SDA
CKP
SCL
WR
CLOCK SYNCHRONIZATION
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
2
C bus have released SCL. This
CLOCK SYNCHRONIZATION TIMING
DX
2
C master device
(Figure
Master device
asserts clock
17-14).
17.2.11
While in Sleep mode, the I
addresses of data, and when an address match or
complete byte transfer occurs, wake the processor
from Sleep (if SSP interrupt is enabled).
Master device
deasserts clock
PIC16F/LF720/721
SLEEP OPERATION
2
C module can receive
DS41430A-page 157
DX-1