PIC16F631-E/P Microchip Technology, PIC16F631-E/P Datasheet - Page 207

• Manufacturer Part Number: PIC16F631-E/P
• Description: IC PIC MCU FLASH 1KX14 20DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F631-E/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 18
• Program Memory Size: 1.75KB (1K x 14)
• Program Memory Type: FLASH
• 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 ~ 125°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• For Use With: 658-1047-5 - BOARD EVALUATION ACCESSTOUCHAC162061 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOICACICE0203 - MPLABICE 20P 300 MIL ADAPTER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Connectivity: -

TABLE 14-4:
© 2008 Microchip Technology Inc.
W
INDF
TMR0
PCL
STATUS
FSR
PORTA
PORTB
PORTC
PCLATH
INTCON
PIR1
PIR2
TMR1L
TMR1H
T1CON
TMR2
T2CON
SSPBUF
SSPCON
CCPR1L
CCPR1H
CCP1CON
RCSTA
TXREG
RCREG
PWM1CON
ECCPAS
ADRESH
ADCON0
OPTION_REG
TRISA
Legend:
Note 1:
Register
2:
3:
4:
5:
6:
u = unchanged, x = unknown, — = unimplemented bit, reads as ‘0’, q = value depends on condition.
If V
One or more bits in INTCON and/or PIR1 will be affected (to cause wake-up).
When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector (0004h).
See Table 14-5 for Reset value for specific condition.
If Reset was due to brown-out, then bit 0 = 0. All other Resets will cause bit 0 = u.
Accessible only when SSPM<3:0> = 1001.
DD
10Ah/18Ah
10Bh/18Bh
goes too low, Power-on Reset will be activated and registers will be affected differently.
INITIALIZATION CONDITION FOR REGISTER
100h/180h
102h/182h
103h/183h
104h184h
01h/101h
05h/105h
06h/106h
07h/107h
0Ah/8Ah/
0Bh/8Bh/
81h/181h
85h/185h
Address
00h/80h/
02h/82h/
03h/83h/
04h/84h/
0Ch
0Dh
1Ch
1Dh
0Eh
0Fh
10h
12h
13h
14h
15h
16h
17h
18h
19h
1Ah
1Eh
1Fh
11h
—
Power-on Reset
xxxx xxxx
xxxx xxxx
xxxx xxxx
0000 0000
0001 1xxx
xxxx xxxx
--xx xxxx
xxxx ----
xxxx xxxx
---0 0000
0000 000x
-000 0000
0000 ----
xxxx xxxx
xxxx xxxx
0000 0000
0000 0000
-000 0000
xxxx xxxx
0000 0000
xxxx xxxx
xxxx xxxx
0000 0000
0000 000x
0000 0000
0000 0000
0000 0000
0000 0000
xxxx xxxx
0000 0000
1111 1111
--11 1111
PIC16F631/677/685/687/689/690
Brown-out Reset
000q quuu
MCLR Reset
uuuu uuuu
xxxx xxxx
uuuu uuuu
0000 0000
uuuu uuuu
--uu uuuu
uuuu ----
uuuu uuuu
---0 0000
0000 000u
-000 0000
0000 ----
uuuu uuuu
uuuu uuuu
uuuu uuuu
0000 0000
-000 0000
uuuu uuuu
0000 0000
uuuu uuuu
uuuu uuuu
0000 0000
0000 000x
0000 0000
0000 0000
0000 0000
0000 0000
uuuu uuuu
0000 0000
1111 1111
--11 1111
WDT Reset
(4)
(1)
through WDT Time-out
Wake-up from Sleep
Wake-up from Sleep
through Interrupt
uuuq quuu
uuuu uuuu
-uuu uuuu
uuuu ----
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--uu uuuu
uuuu ----
uuuu uuuu
---u uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
-uuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--uu uuuu
PC + 1
DS41262E-page 205
(3)
(4)
(2)
(2)
(2)