PIC17C7XX Datasheet, PDF (258/328 Pages) Microchip Technology – High-Performance 8-Bit CMOS EPROM Microcontrollers with 10-bit A/D

PIC17C7XX
FIGURE 20-15: USART SYNCHRONOUS TRANSMISSION (MASTER/SLAVE) TIMING
TX/CK
pin
RX/DT
pin
121
120
121
122
TABLE 20-15: USART SYNCHRONOUS TRANSMISSION REQUIREMENTS
Param
No. Sym
Characteristic
Typ
Min † Max Units Conditions
120 ^{TckH2dtV SYNC XMIT (MASTER &}
SLAVE)
Clock high to data out valid
PIC17CXXX
PIC17LCXXX
— — 50 ns
— — 75 * ns
121 ^TckRF
Clock out rise time and fall
time (Master Mode)
PIC17CXXX
PIC17LCXXX
— — 25 ns
— — 40 * ns
122 ^TdtRF
Data out rise time and fall time PIC17CXXX
PIC17LCXXX
— — 25 ns
— — 40 * ns
*
Characterized but not tested.
†
Data in “Typ” column is at 5V, 25∞C unless otherwise stated. These parameters are for design guidance only and are
not tested.
FIGURE 20-16: USART SYNCHRONOUS RECEIVE (MASTER/SLAVE) TIMING
TX/CK
pin
RX/DT
pin
125
126
TABLE 20-16: USART SYNCHRONOUS RECEIVE REQUIREMENTS
Param
No.
Sym
Characteristic
Typ
Min
†
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.
DS30289A-page 258
Preliminary
© 1998 Microchip Technology Inc.