PIC18F6390 Datasheet, PDF (386/412 Pages) Microchip Technology – 64/80-Pin Flash Microcontrollers with LCD Driver and nanoWatt Technology

PIC18F6390/6490/8390/8490
FIGURE 26-19: USART SYNCHRONOUS TRANSMISSION (MASTER/SLAVE) TIMING
RC6/TX1/CK1
pin
RC7/RX1/DT1
pin
121
121
120
122
Note: Refer to Figure 26-4 for load conditions.
TABLE 26-21: USART SYNCHRONOUS TRANSMISSION REQUIREMENTS
Param
No.
Symbol
Characteristic
Min
Max
120 TCKH2DTV SYNC XMIT (MASTER and SLAVE)
Clock High to Data Out Valid
PIC18FXXXX
—
40
PIC18LFXXXX —
100
121 TCKRF Clock Out Rise Time and Fall Time PIC18FXXXX
—
20
(Master mode)
PIC18LFXXXX —
50
122 TDTRF Data Out Rise Time and Fall Time PIC18FXXXX
—
20
PIC18LFXXXX —
50
Units Conditions
ns
ns VDD = 2.0V
ns
ns VDD = 2.0V
ns
ns VDD = 2.0V
FIGURE 26-20: USART SYNCHRONOUS RECEIVE (MASTER/SLAVE) TIMING
RC6/TX1/CK1
pin
RC7/RX1/DT1
pin
125
126
Note: Refer to Figure 26-4 for load conditions.
TABLE 26-22: USART SYNCHRONOUS RECEIVE REQUIREMENTS
Param.
No.
Symbol
Characteristic
Min Max
125 TDTV2CKL SYNC RCV (MASTER and SLAVE)
Data Hold before CK ↓ (DT hold time)
126 TCKL2DTL Data Hold after CK ↓ (DT hold time)
10
—
15
—
Units
ns
ns
Conditions
DS39629B-page 384
Preliminary
 2004 Microchip Technology Inc.