PIC16C72/JW Microchip Technology, PIC16C72/JW Datasheet

IC MCU EPROM2KX14 A/D PWM 28CDIP

PIC16C72/JW

Manufacturer Part Number
PIC16C72/JW
Description
IC MCU EPROM2KX14 A/D PWM 28CDIP
Manufacturer
Microchip Technology
Series
PIC® 16Cr

Specifications of PIC16C72/JW

Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
EPROM, UV
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Data Converters
A/D 5x8b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
28-CDIP (0.300", 7.62mm) Window
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-

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The PIC16C72 (Rev. A) parts you have received con-
form
(DS30390E), except for the anomalies described
below.
All the problems listed here will be addressed in future
revisions of the PIC16C72 silicon.
1. Module: 8-bit A/D Module
2. Module: CCP (Compare Mode)
 2001 Microchip Technology Inc.
If the Analog Port is configured so that all analog
pins are digital inputs (PCFG2:PCFG0 = 11x),
then doing a conversion on any pin of the analog
port will give a result of ADRES = 0xFF.
Work around
Configure the PCFG2:PCFG0 bits to a value that
has any pin of the analog port configured as an
analog input (such as PCFG2:PCFG0 = 100).
Conversion on any pin of the analog port (analog
or digital) will now convert as expected.
The Compare mode may not operate as expected
when configuring the compare match to drive the
I/O pin low (CCPxM<3:0> = 1001).
When the CCP module is changed to compare
output low (CCPxM<3:0> = 1001) from any other
non-compare CCP mode, the I/O pin will immedi-
ately be driven low, regardless of the state of the
I/O data latch. The pin will remain low when the
compare match occurs (see Table 1).
However, when the CCP module is changed to
compare output high (CCPxM<3:0> = 1000) from
any other CCP mode, the I/O pin will immediately
be driven low, regardless of the state of the I/O
data latch. The pin will be driven high when the
compare match occurs.
functionally
to
PIC16C72 Rev. A Silicon Errata Sheet
the
Device
Data
Sheet
TABLE 1:
CCPxM<3:0> =
CCP Mode
Work around
To have the I/O pin high until the compare match
low occurs, force a compare match high to get the
I/O pin into the high state, then reconfigure the
compare match to force the I/O low when the com-
pare condition occurs.
0xxx
1000
1001
101x
11xx
PIC16C72
COMPARE OUTPUT LOW
SWITCHING
I/O pin
State
H
H
H
H
H
L
L
L
L
L
1001
Change CCP to
CCPxM<3:0> =
H
L
L
L
L
L
L
L
DS80092A-page 1
1000
L
L
L
L
L
L
L
L

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PIC16C72/JW Summary of contents

Page 1

... CCP mode, the I/O pin will immediately be driven low, regardless of the state of the I/O data latch. The pin will be driven high when the compare match occurs.  2001 Microchip Technology Inc. PIC16C72 TABLE 1: Data Sheet CCP Mode CCPxM< ...

Page 2

... AVOIDING THE INITIAL SHORT SCK PULSE STATUS, RP0 ;Bank 1 ;Data received? ;(Xmit complete?) LOOP ;No STATUS, RP0 ;Bank 0 SSPBUF SSPBUF ;Save in user RAM TXDATA TXDATA T2CON, TMR2ON ;Timer2 off TMR2 ;Clear Timer2 ;Xmit New data T2CON, TMR2ON ;Timer2 on  2001 Microchip Technology Inc. ...

Page 3

... MOVF TMR1H, 1 TMR1 value before MOVF instruction: TMR1H:TMR1L = FF:FF TMR1 value after MOVF instruction: TMR1H:TMR1L = FF:00  2001 Microchip Technology Inc. PIC16C72 If Timer1 is ON and then turned OFF when TMR1H:TMR1L = xx:FF, performing any write instruction with TMR1L as the destination may cause TMR1H to increment. ...

Page 4

... DS80092A-page 4 Data Sheet New Specification Specification Min Typ Max Min Typ — — 10 — — Data Sheet New Specification Specification Min Typ Max Min Typ 2.5* — 3.0 — 0.3 V  2001 Microchip Technology Inc. Units Max 14 V Units Max 0.3 V ...

Page 5

... TMR1 will incre- ment on the next rising edge of this clock. FIGURE 1: WRITES TO TIMER1 (EXTERNAL CLOCK/OSCILLATOR MODE) TMR1 Increment Clock (Input to Prescaler) Write to TMR1H and/or TMR1L Register(s) TMR1H:TMR1L Increments  2001 Microchip Technology Inc. New Specification Min Typ Max 1. Continuous — ...

Page 6

... Data Sheet Specification Units Min Typ Max 3.70 — 4.30 V  2001 Microchip Technology Inc. ...

Page 7

... L , SEEVAL, MPLAB and The EE OQ Embedded Control Solutions Company are registered trade- marks of Microchip Technology Incorporated in the U.S.A. and other countries. Total Endurance, ICSP, In-Circuit Serial Programming, Filter- Lab, MXDEV, microID, FlexROM, fuzzyLAB, MPASM, MPLINK, MPLIB, PICDEM, ICEPIC, Migratable Memory, FanSense, ECONOMONITOR, SelectMode and microPort are trademarks of Microchip Technology Incorporated in the U ...

Page 8

... Microchip. No licenses are conveyed, implicitly or otherwise, except as maybe explicitly expressed herein, under any intellec- tual property rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights reserved. All other trademarks mentioned herein are the property of their respective companies. ...

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