PIC16F631-I/SO Microchip Technology, PIC16F631-I/SO Datasheet - Page 5

• Manufacturer Part Number: PIC16F631-I/SO
• Description: IC PIC MCU FLASH 1KX14 20SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F631-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 1.75KB (1K x 14)
• Package / Case: 20-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 18
• Eeprom Size: 128 x 8
• Ram Size: 64 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 64 B
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 2
• 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, ICE2000, DM163014, DM164120-4
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 658-1047-5 - BOARD EVALUATION ACCESSTOUCHAC162061 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOIC
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1.5 Auto-baud sequence cannot be aborted in
1.6 Clearing SPEN does not reset EUSART state
 2010 Microchip Technology Inc.
some cases.
machine correctly.
If an auto-baud is started but no edges are
received, there is no way to leave Auto-Baud
mode.
Work around
Use the Watchdog Timer to reset the entire
device.
Fix
Rev. A5 Silicon and later revisions.
Affected Silicon Revisions
PIC16F687/PIC16F689/PIC16F690
When SPEN is cleared, the entire EUSART is
frozen. When SPEN is set, the EUSART resumes
where it left off. This can cause some unexpected
behavior.
Work around
To reset the EUSART, toggle TXEN and CREN
after clearing SPEN. This will reset the transmit
and receive state machines.
Fix
Rev. A5 Silicon and later revisions.
Affected Silicon Revisions
PIC16F687/PIC16F689/PIC16F690
A3
A3
X
X
A4
A4
X
X
A5
A5
A6
A6
PIC16F631/677/685/687/689/690
1.7 Extra character transmitted after auto-baud.
If TXEN is high when ABDEN is set, it will be
cleared as soon as the auto-baud process
begins, and reset as soon as the auto-baud
process completes. When TXEN is reset, the
character
transmitted.
Work around
Before starting auto-baud, clear TXEN. This will
reset the transmit state machine correctly. After
the auto-baud is complete and the firmware has
brought TXEN high, no character will be
transmitted.
Fix
Rev. A5 Silicon and later revisions.
Affected Silicon Revisions
PIC16F687/PIC16F689/PIC16F690
A3
X
A4
X
in
A5
the
A6
transmit
DS80243M-page 5
queue
will
be