PIC18F4431-E/ML Microchip Technology, PIC18F4431-E/ML Datasheet

PIC18F4431-E/ML

Manufacturer Part Number

PIC18F4431-E/ML

Description

IC MCU FLASH 8KX16 44QFN

Manufacturer

Microchip Technology

Series

PIC® 18Fr

Datasheets

1.PIC16F616T-ISL.pdf (8 pages)

2.PIC16F818-ISO.pdf (6 pages)

3.PIC18F2331-ISO.pdf (392 pages)

4.PIC18F2331-ISO.pdf (8 pages)

5.PIC18F2331-ISO.pdf (6 pages)

6.PIC18F2331-ISO.pdf (16 pages)

7.PIC18LF2331-ISO.pdf (40 pages)

Specifications of PIC18F4431-E/ML

Core Processor

PIC

Core Size

8-Bit

Speed

40MHz

Connectivity

I²C, SPI, UART/USART

Peripherals

Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT

Number Of I /o

Program Memory Size

16KB (8K x 16)

Program Memory Type

FLASH

Eeprom Size

256 x 8

Ram Size

768 x 8

Voltage - Supply (vcc/vdd)

4.2 V ~ 5.5 V

Data Converters

A/D 9x10b

Oscillator Type

Internal

Operating Temperature

-40°C ~ 125°C

Package / Case

44-QFN

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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The PIC18F2331/2431/4331/4431 parts you have

received conform functionally to the Device Data Sheet

(DS39616), except for the anomalies described below.

Any Data Sheet Clarification issues related to the

PIC18F2331/2431/4331/4431 will be reported in a

separate Data Sheet errata. Please check the

Microchip web site for any existing issues.

All the issues listed here will be addressed in future

revisions of the PIC18F2331/2431/4331/4431 silicon.

The

PIC18F2331/2431/4331/4431 devices with these

Device/Revision IDs:

1. Module: PCPWM

The Device IDs (DEVID1 and DEVID2) are located at

addresses

configuration space. They are shown in hexadecimal

in the format “DEVID2 DEVID1”.

Part Number

PIC18F2331

PIC18F2431

PIC18F4331

PIC18F4431

When the PCPWM is operated in Complementary

mode with a non-zero dead-time value and the

duty cycle results in an active-low time of less than

1 T

for a new PWM period and the PWM output will

alternate between one PWM period high and one

PWM period low.

Work around

When in Complementary mode with a non-zero

dead-time value, ensure that the active-low time

will always be greater than 1 T

when dead time is not equal to zero, ensure that:

Date Codes that pertain to this issue:

All engineering and production devices.

following

PDCH:PDCL > (4 * (PTPERH:PTPERL + 1))

, the PWM generator will miss the rising edge

PDCH:PDCL < (4 * PTPERH:PTPERL)

PIC18F2331/2431/4331/4431 Rev. A3 Silicon Errata

3FFFFEh:3FFFFFh

silicon

00 1000 110

00 1000 101

00 1000 100

00 1000 111

Device ID

errata apply

. In other words,

Revision ID

the

00010

PIC18F2331/2431/4331/4431

only

device’s

2. Module: PCPWM

3. Module: PCPWM

When the PCPWM is operated in Center-Aligned

mode with double updates and the duty cycle

alternates on each update between a zero and

non-zero value, an incorrect waveform is gener-

ated (the PWM output will alternate between one

PWM period high and one PWM period low). If in

Complementary mode, dead time will not be

inserted properly.

Work around

Do not use zero duty cycle when in Center-Aligned

mode with double updates. Instead of zero, set the

duty cycle to a small, non-zero value.

Date Codes that pertain to this issue:

All engineering and production devices.

When the PCPWM is operated in Center-Aligned

mode with double updates and the duty cycle

alternates on each update between a greater than

100% duty cycle and a non-zero value, an incorrect

waveform is generated.

Work around

Do not use equal to or greater than 100% duty cycle

when in Center-Aligned mode with double updates.

Ensure that the maximum duty cycle value is

always smaller than or equal to the PWM period,

i.e., PDCH:PDCL ≤ (4 * (PTPERH:PTPERL)).

Date Codes that pertain to this issue:

All engineering and production devices.

DS80192C-page 1

Related parts for PIC18F4431-E/ML

PIC18F4431-E/ML Summary of contents

Page 1

... Device/Revision IDs: Part Number Device ID PIC18F2331 00 1000 111 PIC18F2431 00 1000 110 PIC18F4331 00 1000 101 PIC18F4431 00 1000 100 The Device IDs (DEVID1 and DEVID2) are located at addresses 3FFFFEh:3FFFFFh in configuration space. They are shown in hexadecimal in the format “DEVID2 DEVID1”. 1. Module: PCPWM When the PCPWM is operated in Complementary ...

Page 2

... TX pin is pulled high, either through an external resistor making the TX pin an output and writing ‘1’ to it, to not disturb the transmit line. PROCESSING THE CARRY BIT DURING BCD ADDITIONS ; .80 (BCD) ; .80 (BCD) ; test C ; inc next higher LSB ; test C ; inc next higher LSB © 2005 Microchip Technology Inc. ...

Page 3

... Work around Load the first character into TXREG and then wait for a TX interrupt, or check the TXIF bit before writing each additional character to TXREG. © 2005 Microchip Technology Inc. PIC18F2331/2431/4331/4431 14. Module: EUSART The EUSART cannot receive asynchronous data at the four fastest baud rates (BRGH = 1, BRG16 = 1 and SPBRG < ...

Page 4

... Characteristics) and 5 (LVD Characteristics). Rev B Document (12/2004) Added Data Sheet Clarification issue 6 (28-Pin QFN Diagram). Rev C Document (05/2005) Added silicon issue 15 (HSADC). All Data Sheet Clarifi- cation issues were removed and placed into a separate Data Sheet Errata. DS80192C-page 4 © 2005 Microchip Technology Inc. ...

Page 5

... PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total Endurance and WiperLock are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 6

... Fax: 65-6334-8850 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Taiwan - Hsinchu Tel: 886-3-572-9526 Fax: 886-3-572-6459 © 2005 Microchip Technology Inc. EUROPE Austria - Weis Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Ballerup Tel: 45-4450-2828 Fax: 45-4485-2829 France - Massy Tel: 33-1-69-53-63-20 ...

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