PIC17CR42 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC17CR42

High-Performance 8-Bit CMOS EPROM/ROM Microcontroller

Microchip Technology 

PIC17C4X

Applicable Devices 42 R42 42A 43 R43 44

FIGURE 17-9: USART MODULE: SYNCHRONOUS TRANSMISSION (MASTER/SLAVE) TIMING

RA5/TX/CK

pin

RA4/RX/DT

pin

121

121

120

122

TABLE 17-9: SERIAL PORT SYNCHRONOUS TRANSMISSION REQUIREMENTS

Parameter

No.

Sym

Characteristic

Min

Typ† Max Units Conditions

120

TckH2dtV SYNC XMIT (MASTER & SLAVE)

Clock high to data out valid

—

—

65

ns

121

TckRF

Clock out rise time and fall time (Master

—

Mode)

10

35

ns

122

TdtRF

Data out rise time and fall time

—

10

35

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 17-10: USART MODULE: SYNCHRONOUS RECEIVE (MASTER/SLAVE) TIMING

RA5/TX/CK

pin

RA4/RX/DT

pin

125

126

TABLE 17-10: SERIAL PORT SYNCHRONOUS RECEIVE REQUIREMENTS

Parameter

No.

Sym

Characteristic

Min

Typ† Max Units Conditions

125

TdtV2ckL SYNC RCV (MASTER & SLAVE)

Data hold before CK↓ (DT hold 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.

DS30412C-page 160

© 1996 Microchip Technology Inc.

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