2003 Microchip Technology Inc.
DS39582B-page 193
PIC16F87XA
FIGURE 17-17:
USART SYNCHRONOUS TRANSMISSION (MASTER/SLAVE) TIMING
TABLE 17-12: USART SYNCHRONOUS TRANSMISSION REQUIREMENTS
FIGURE 17-18:
USART SYNCHRONOUS RECEIVE (MASTER/SLAVE) TIMING
TABLE 17-13: USART SYNCHRONOUS RECEIVE REQUIREMENTS
Note: Refer to Figure 17-3 for load conditions.
121
122
RC6/TX/CK
RC7/RX/DT
pin
120
Param
No.
Symbol
Characteristic
Min
Typ
Max Units Conditions
120
TCKH2DTV SYNC XMIT (MASTER & SLAVE)
Clock High to Data Out Valid
Standard(F)—
80
ns
Extended(LF)
100
ns
121
TCKRF
Clock Out Rise Time and Fall Time
(Master mode)
Standard(F)—
45
ns
Extended(LF)—
50
ns
122
TDTRF
Data Out Rise Time and Fall Time
Standard(F)—
45
ns
Extended(LF)—
50
ns
Data in “Typ” column is at 5V, 25
°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
Note: Refer to Figure 17-3 for load conditions.
125
126
RC6/TX/CK
RC7/RX/DT
pin
Param
No.
Symbol
Characteristic
Min
Typ
Max
Units
Conditions
125
TDTV2CKL
SYNC RCV (MASTER & SLAVE)
Data Setup before CK
↓ (DT setup time)
15
ns
126
TCKL2DTL
Data Hold after CK
↓ (DT hold time)
15
ns
Data in “Typ” column is at 5V, 25
°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
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