PIC16C781T-I/SO Microchip Technology, PIC16C781T-I/SO Datasheet

IC MCU CMOS 8BIT 1K 20MHZ 20SOIC

PIC16C781T-I/SO

Manufacturer Part Number
PIC16C781T-I/SO
Description
IC MCU CMOS 8BIT 1K 20MHZ 20SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Cr

Specifications of PIC16C781T-I/SO

Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
13
Program Memory Size
1.75KB (1K x 14)
Program Memory Type
OTP
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x8b; D/A 1x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SOIC (7.5mm Width)
For Use With
AC164028 - MODULE SKT PROMATEII 20SOIC/DIP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
Other names
PIC16C781TI/SO
The PIC16C781/782 parts you have received conform
functionally to the Device Data Sheet (DS41171A),
except for the anomalies described below.
1.
 2002 Microchip Technology Inc.
M
Note:
Module:
Controller (PSMC)
In the Pulse Width Mode (PWM) when a compara-
tor threshold crossing event occurs after the mini-
mum duty cycle time (Min DC) and coincident with
a PSMC clock edge, the pulse output of the PSMC
will immediately and correctly go to the inactive
state. One PSMC clock period later, the output
may incorrectly become active and remain active
until the pulse terminates at the completion of the
maximum duty cycle time (Max DC).
Work around
If possible, use the Pulse Skipping Mode (PSM). If
your application requires PWM, then please
contact your local Microchip representative.
PIC16C781/782 Rev. B1 Silicon/Data Sheet Errata
The silicon revision of a specific compo-
nent is identified by its manufacture date
code: YYWW, YY is the year of manufac-
ture and WW is the specific work week. All
material with a date code of 0228 or earlier
is revision B1 silicon, and subject to the
Errata contained in this document. Any
components with a latter date code will be
silicon revision B3 or latter and will be cov-
ered in a separate Errata. For additional
information concerning date codes, refer to
the packaging information section of the
PIC16C781/782 data sheet (DS41171A).
Programmable
Switch
Mode
PIC16C781/782
2.
Note:
Module:
When the voltage comparator inputs are subjected
to fast rise time pulses, some units exhibit a
momentary invalid state on their output. The prob-
ability of generating an invalid output state is
dependant upon four factors:
1. Pulse slew rate
2. Supply Voltage (V
3. Ambient Temperature
4. Reference Voltage (V
Figures 1 through 5 show the input slew rate limits
for normal operation of the voltage comparators in
Fast mode, for a variety of Common mode volt-
ages, supply voltages and ambient temperatures.
If the PSMC is used in conjunction with the voltage
comparators, an invalid voltage comparator output
state can cause the premature termination of
PSMC output pulses.
Work around
The pulse rise time of inputs to the voltage com-
parators should be less than the limits shown in
Figures 1 through 5 for the specific conditions of
operation (supply voltage, temperature, Common
mode voltage). The values shown are for pulses
with a constant rise time. For pulses with com-
pound rise times (pulses with non-linear or chang-
ing slopes), the limits may be different.
The area below the line for any given tem-
perature is the safe operating area.
Voltage Comparator
DD
)
COMMON
_
DS80121C-page 1
MODE
)

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PIC16C781T-I/SO Summary of contents

Page 1

... DC). Work around If possible, use the Pulse Skipping Mode (PSM). If your application requires PWM, then please contact your local Microchip representative.  2002 Microchip Technology Inc. PIC16C781/782 2. Module: Voltage Comparator When the voltage comparator inputs are subjected to fast rise time pulses, some units exhibit a momentary invalid state on their output ...

Page 2

... COMMON MODE VOLTAGE (VOLTS) FIGURE 2: VOLTAGE COMPARATOR INPUT, MAXIMUM SLEW RATE 2.5 2.75 COMMON MODE VOLTAGE (VOLTS) DS80121C-page 2 1.5 2.0 2.5 3.0 3.5 3.0 3.25 3.5 3.75 4.0 = 5.5V DD ° ° ° 4.0 = 5.5V DD ° ° °  2002 Microchip Technology Inc. ...

Page 3

... VOLTAGE COMPARATOR INPUT, MAXIMUM SLEW RATE 0.0 0.5 COMMON MODE VOLTAGE (VOLTS) FIGURE 4: VOLTAGE COMPARATOR INPUT, MAXIMUM SLEW RATE 0.0 0.5 COMMON MODE VOLTAGE (VOLTS)  2002 Microchip Technology Inc. PIC16C781/782 1.0 1.5 2.0 1.0 1.5 = 4.0V DD ° ° ° 2.5 = 3.5V DD ° ° ...

Page 4

... DS80121C-page 4 1 Comparator Module TMR1 Clock TMR1 0 TMR1H TMR1L 1 ⋅ T1SYNC TMR1CS 1 Prescaler OSC Internal 0 Clock T1CKPS<1:0> TMR1CS = 3.0V DD ° ° ° 1.5 Synchronized Clock Input Synchronize det 2 SLEEP Input RB7/C2/ TMR1ON PSMC1B/T1G TMR1GE TMR1ON TMR1GE  2002 Microchip Technology Inc. ...

Page 5

... Figure 3-6. FIGURE 12-3: COMPARATOR C2 CONFIGURATION WITH OUTPUT SYNCHRONIZED TO TIMER1 CLOCK RB2/AN6 INPUT RA2/AN2 External Reference REF  2002 Microchip Technology Inc. PIC16C781/782 2. Module: Digital-to-Analog Converter Correction to Example 10-1 on page 81. The following line of code: “BSF ANSEL,1 Should be: “BSF ANSEL,5 ...

Page 6

... PIC16C781/782 REVISION HISTORY Rev A Document (1/02) Original errata document, which includes clarifica- tions/corrections to Data Sheet Items and 4. Rev B Document (6/02) Added Item 1 to page 1. Rev C Document (7/01) Added Figures 1 through 5. Added Item 2, Voltage Comparator to page 1. DS80121C-page 6  2002 Microchip Technology Inc. ...

Page 7

... Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...

Page 8

... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology (Barbados) Inc., Taiwan Branch 11F-3, No ...

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