PIC16F1938-I/SP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F1938-I/SP

28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP™ Technology

Microchip Technology 

PIC16F193X/LF193X

TABLE 28-15: SPI MODE REQUIREMENTS

Param

No.

Symbol

Characteristic

Min. Typ† Max. Units Conditions

SP70* TSSL2SCH, SS↓ to SCK↓ or SCK↑ input

TSSL2SCL

TCY

— — ns

SP71* TSCH

SCK input high time (Slave mode)

TCY + 20 — — ns

SP72* TSCL

SCK input low time (Slave mode)

TCY + 20 — — ns

SP73* TDIV2SCH, Setup time of SDI data input to SCK edge

TDIV2SCL

100

— — ns

SP74* TSCH2DIL, Hold time of SDI data input to SCK edge

TSCL2DIL

100

— — ns

SP75* TDOR

SDO data output rise time

3.0-5.5V

—

10 25 ns

1.8-5.5V

—

25 50 ns

SP76* TDOF

SDO data output fall time

—

10 25 ns

SP77* TSSH2DOZ SS↑ to SDO output high-impedance

10

— 50 ns

SP78* TSCR

SCK output rise time

(Master mode)

3.0-5.5V

1.8-5.5V

—

10 25 ns

—

25 50 ns

SP79* TSCF

SCK output fall time (Master mode)

—

10 25 ns

SP80* TSCH2DOV, SDO data output valid after

TSCL2DOV SCK edge

3.0-5.5V

1.8-5.5V

—

— 50 ns

—

— 145 ns

SP81* TDOV2SCH, SDO data output setup to SCK edge

TDOV2SCL

Tcy

— — ns

SP82* TSSL2DOV SDO data output valid after SS↓ edge

—

— 50 ns

SP83* TSCH2SSH, SS ↑ after SCK edge

TSCL2SSH

1.5TCY + 40 — — ns

* These parameters are characterized but not tested.

† Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance

only and are not tested.

FIGURE 28-20: I2C™ BUS START/STOP BITS TIMING

SCL

SDA

SP90

SP91

SP92

SP93

Start

Condition

Note: Refer to Figure 28-5 for load conditions.

Stop

Condition

DS41364B-page 384

Preliminary

© 2009 Microchip Technology Inc.

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