Datasheet

Table Of Contents
PIC24FV32KA304 FAMILY
DS30009995E-page 288 2011-2017 Microchip Technology Inc.
FIGURE 29-16: UARTx BAUD RATE GENERATOR OUTPUT TIMING
FIGURE 29-17: UARTx START BIT EDGE DETECTION
TABLE 29-35: UARTx TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C T
A
+85°C (Industrial)
-40°C T
A
+125°C (Extended)
Symbol Characteristics Min Typ Max Units
T
LW
UxBCLK High Time 20 T
CY
/2 ns
T
HW
UxBCLK Low Time 20 (T
CY
* U
X
BRG) + T
CY
/2 ns
T
BLD
UxBCLK Falling Edge Delay from UxTX -50 50 ns
T
BHD
UxBCLK Rising Edge Delay from UxTX T
CY
/2 – 50 T
CY
/2 + 50 ns
T
WAK
Minimum Low on UxRX Line to Cause
Wake-up
—1 s
T
CTS
Minimum Low on UxCTS Line to Start
Transmission
Tcy n s
T
SETUP
Start bit Falling Edge to System Clock Rising
Edge Setup Time
3— ns
T
STDELAY
Maximum Delay in the Detection of the
Start bit Falling Edge
——T
CY
+ T
SETUP
ns
UxBCLK
UxTX
T
BLD
T
BHD
UxBRG + 1 * T
CY
T
LW
T
HW
UxBRG
Cycle
Clock
UxRX
Any Value
T
STDELAY
T
SETUP
T
CY
Start bit Detected, UxBRG Started