PIC16F639-I/SS Microchip Technology, PIC16F639-I/SS Datasheet

PIC16F639-I/SS

Manufacturer Part Number

PIC16F639-I/SS

Description

IC MCU FLASH 2KX14 20SSOP

Manufacturer

Microchip Technology

Series

PIC® 16Fr

Datasheets

1.PIC16F616T-ISL.pdf (8 pages)

2.PIC12F635-ISN.pdf (234 pages)

3.PIC16F636-ISL.pdf (8 pages)

4.PIC16F636-ISL.pdf (4 pages)

5.PIC16F639-ISS.pdf (6 pages)

6.PIC16F676-EP.pdf (132 pages)

Specifications of PIC16F639-I/SS

Program Memory Type

FLASH

Program Memory Size

3.5KB (2K x 14)

Package / Case

20-SSOP

Core Processor

PIC

Core Size

8-Bit

Speed

20MHz

Peripherals

Brown-out Detect/Reset, LVD, POR, WDT

Number Of I /o

Ram Size

128 x 8

Voltage - Supply (vcc/vdd)

2 V ~ 3.6 V

Oscillator Type

Internal

Operating Temperature

-40°C ~ 85°C

Processor Series

PIC16F

Core

PIC

Data Bus Width

8 bit

Data Ram Size

128 B

Interface Type

SPI

Maximum Clock Frequency

20 MHz

Number Of Programmable I/os

Number Of Timers

Operating Supply Voltage

2 V to 5.5 V

Maximum Operating Temperature

+ 85 C

Mounting Style

SMD/SMT

3rd Party Development Tools

52715-96, 52716-328, 52717-734

Development Tools By Supplier

PG164130, DV164035, DV244005, DV164005, PG164120

Minimum Operating Temperature

- 40 C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

For Use With

XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOPXLT20SS-1 - SOCKET TRANSITION 18DIP 20SSOPAC162066 - HEADER INTRFC MPLAB ICD2 20PINAC164307 - MODULE SKT FOR PM3 28SSOP

Eeprom Size

Data Converters

Connectivity

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

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INTRODUCTION

The PIC16F639 is a suitable microcontroller for

bidirectional communications, remote passive keyless

entry and low-frequency sensing applications. The

device includes a PIC16F636 microcontroller and a

three channel Low-Frequency (LF) front-end device in

a single 20-pin SSOP package. These two devices are

internally connected via a modified SPI interface.

The CS, SCLK/ALERT and LFDATA/RSSI/CCLK/SDIO

pads of the analog front-end device are internally wire

bonded to RC1, RC2 and RC3 pads of the PIC16F639

microcontroller, respectively.

The PIC16F639 has twelve digital I/O pins and four LF

I/O pins. The digital I/O pins are used in the same way

as on the PIC16F636 device. Figure 1 shows the pin

diagram of the PIC16F639.

FIGURE 1:

Author:

Youbok Lee, Ph.D.

Microchip Technology Inc.

RC3/LFDATA/RSSI/CCLK/SDIO

PIC16F639 PIN DIAGRAM

Analog section

PIC16F639 Microcontroller Overview

RA4/T1G/OSC2/CLKOUT

RA5/T1CKI/OSC1/CLKIN

RA3/MCLR/V

RC4/C2OUT

RC5

LCY

LCZ

DDT

The four LF I/O pins (LCX, LCY, LCZ, LCCOM) are used

to detect low-frequency input signals and to transmit

data by modulating the input voltage. External LC

resonant circuits need to be connected to the LF I/O

pins. The device’s LF analog channels are optimized for

125 kHz input signal with an input sensitivity of about

1 mV

distance of up to a few meters. See Table 1 for more

feature details.

The device also has 2K words of Flash program memory,

two comparators, a K

peripheral, user-selectable internal oscillator frequency

and three-channel analog front-end for low-frequency

detection and LF talk-back. The three-channel analog

front-end

connections to detect input signals from x, y and z

directions.

For a low-power battery operation, the device has

various low-power modes (Sleep, Standby, Active) and

is optimized to consume very low currents. The device

can also be operated in battery backup and batteryless

modes using only a few external components. An

example of the circuit is shown in the “ PIC12F635/

PIC16F636/639 Data Sheet ” (DS41232).

, which allows a bidirectional communication

RA0/C1IN+/ICSPDAT/ULPWU

RA1/C1IN-/V

RA2/T0CKI/INT/C1OUT

RC0/C2IN+

RC1/C2IN-/CS

RC2/SCLK/ALERT

LCCOM

LCX

SST

allows

orthogonally

REF

/ICSPCLK

TB088

encryption/decryption

positioned

DS91088B-page 1

antenna

Related parts for PIC16F639-I/SS

PIC16F639-I/SS Summary of contents

Page 1

... RC1, RC2 and RC3 pads of the PIC16F639 microcontroller, respectively. The PIC16F639 has twelve digital I/O pins and four LF I/O pins. The digital I/O pins are used in the same way as on the PIC16F636 device. Figure 1 shows the pin diagram of the PIC16F639 ...

Page 2

... These comparators are general purpose. One can be used when implementing firmware-based ADC for RSSI output. These timers are useful for measuring pulse timing. The Timer1 can also be used for firmware-based ADC implementation. - MHz (battery voltage) level © 2005 Microchip Technology Inc. ...

Page 3

... RF signals. A significant advantage that the PIC16F639 device has, when compared to similar devices in the market- place, is that it can demodulate weakly modulated input signals. ...

Page 4

... MPLAB ICD 2 In-Circuit Debugger • PICkit™ 1 Flash Starter Kit REFERENCES 1. “ PIC12F635/PIC16F636/639 Data (DS41232); Microchip Technology Inc. 2. AN959, “Using the PIC16F639 MCU for Smart Wireless Applications ” (DS00959); Microchip Technology Inc. © 2005 Microchip Technology Inc. Sheet ” ...

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: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2005 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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