PIC16F688-I/SL Microchip Technology Inc., PIC16F688-I/SL Datasheet - Page 42

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PIC16F688-I/SL

Manufacturer Part Number
PIC16F688-I/SL
Description
14 PIN, 7 KB FLASH, 256 RAM, 12 I/O
Manufacturer
Microchip Technology Inc.
Datasheet

Specifications of PIC16F688-I/SL

A/d Inputs
8-Channel, 10-Bit
Comparators
2
Cpu Speed
5 MIPS
Eeprom Memory
256 Bytes
Input Output
12
Interface
USART
Memory Type
Flash
Number Of Bits
8
Package Type
14-pin SOIC-N
Programmable Memory
7K Bytes
Ram Size
256 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

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0
PIC16F688
4.2.5.6
Figure 4-6 shows the diagram for this pin. The RA5 pin
is configurable to function as one of the following:
• a general purpose I/O
• a Timer1 clock input
• a crystal/resonator connection
• a clock input
DS41203B-page 40
RA5/T1CKI/OSC1/CLKIN
FIGURE 4-6:
Data Bus
PORTA
PORTA
WPUA
WPUA
TRISA
TRISA
IOCA
IOCA
WR
WR
WR
WR
RD
RD
RD
RD
Interrupt-on-
change
Note 1:
D
D
D
D
To Timer1 or CLKGEN
CK
CK
CK
CK
2: When using Timer1 with LP oscillator, the
Timer1 LP oscillator enabled.
Schmitt Trigger is bypassed.
Q
Q
Q
Q
Q
Q
Q
Q
BLOCK DIAGRAM OF RA5
INTOSC
© 2006 Microchip Technology Inc.
OSC2
Mode
INTOSC
RD PORTA
RAPU
Mode
Oscillator
Circuit
TMR1LPEN
Q
Q
EN
EN
D
D
V
(1)
DD
Weak
V
V
DD
Q3
SS
I/O pin
(2)

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