PIC16F87X Datasheet, PDF (175/218 Pages) Microchip Technology – 28/40-pin 8-Bit CMOS FLASH Microcontrollers

PIC16F87X
FIGURE 15-19: USART SYNCHRONOUS TRANSMISSION (MASTER/SLAVE) TIMING
RC6/TX/CK
Pin
RC7/RX/DT
Pin
121
121
120
122
Note: Refer to Figure 15-5 for load conditions.
TABLE 15-10: USART SYNCHRONOUS TRANSMISSION REQUIREMENTS
Param
No.
Sym
Characteristic
Min Typ† Max Units Conditions
120
TckH2dtV SYNC XMIT (MASTER &
Standard(F)
SLAVE)
Clock high to data out valid
Extended(LF)
—
— 80 ns
—
— 100 ns
121
Tckrf Clock out rise time and fall time Standard(F)
(Master mode)
Extended(LF)
—
— 45 ns
—
— 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.
FIGURE 15-20: USART SYNCHRONOUS RECEIVE (MASTER/SLAVE) TIMING
RC6/TX/CK
pin
RC7/RX/DT
pin
125
126
Note: Refer to Figure 15-5 for load conditions.
TABLE 15-11: USART SYNCHRONOUS RECEIVE REQUIREMENTS
Parameter
No.
Sym
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.
 2001 Microchip Technology Inc.
DS30292C-page 173