PIC16F631-I/P Microchip Technology Inc., PIC16F631-I/P Datasheet - Page 68
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PIC16F631-I/P
Manufacturer Part Number
PIC16F631-I/P
Description
MCU, 8-Bit, 1KW Flash, 64 RAM, 18 I/O, PDIP-20
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F631-IP.pdf
(294 pages)
Specifications of PIC16F631-I/P
Comparators
2
Cpu Speed
5 MIPS
Eeprom Memory
128 Bytes
Input Output
18
Memory Type
Flash
Number Of Bits
8
Package Type
20-pin PDIP
Programmable Memory
1.75K Bytes
Ram Size
64 Bytes
Speed
20 MHz
Timers
1-8-bit, 1-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F631-I/P
Manufacturer:
MICROCHIP
Quantity:
4 500
Part Number:
PIC16F631-I/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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PIC16F631/677/685/687/689/690
4.2.5.4
Figure 4-4 shows the diagram for this pin. The
RA3/MCLR/V
of the following:
• a general purpose input
• as Master Clear Reset with weak pull-up
FIGURE 4-4:
DS41262D-page 66
Data Bus
PORTA
IOCA
IOCA
TRISA
WR
RD
RD
RD
Interrupt-on-
Change
D
CK
RA3/MCLR/V
PP
Q
Q
pin is configurable to function as one
Reset
MCLRE
BLOCK DIAGRAM OF RA3
V
SS
PP
RD PORTA
MCLRE
Q
Q
MCLRE
EN
EN
D
D
V
DD
Weak
V
SS
Q3
Input
Pin
4.2.5.5
Figure 4-5 shows the diagram for this pin. The
RA4/AN3/T1G/OSC2/CLKOUT pin is configurable to
function as one of the following:
• a general purpose I/O
• an analog input for the ADC (except PIC16F631)
• a TMR1 gate input
• a crystal/resonator connection
• a clock output
FIGURE 4-5:
Data Bus
PORTA
PORTA
WPUA
WPUA
TRISA
TRISA
IOCA
IOCA
Note 1: CLK modes are XT, HS, LP, LPTMR1 and CLKOUT
WR
WR
WR
WR
RD
RD
RD
RD
Interrupt-on-
Change
2: With CLKOUT option.
3: ANSEL determines Analog Input mode.
4: Not implemented on PIC16F631.
Enable.
D
D
D
D
To T1G
To A/D Converter
CK
CK
CK
CK
RA4/AN3/T1G/OSC2/CLKOUT
Q
Q
Q
Q
Q
Q
Q
Q
Input Mode
BLOCK DIAGRAM OF RA4
Analog
© 2007 Microchip Technology Inc.
OSC1
(4)
F
OSC
INTOSC/
RC/EC
CLKOUT
CLKOUT
Enable
(3)
Enable
Input Mode
/4
RABPU
RD PORTA
CLKOUT
Enable
Analog
Oscillator
Circuit
Modes
Q
Q
1
0
(2)
CLK
EN
EN
(1)
D
D
V
DD
Weak
V
V
DD
SS
Q3
I/O Pin
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