PIC16F688-I/STG Microchip Technology, PIC16F688-I/STG Datasheet - Page 39

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PIC16F688-I/STG

Manufacturer Part Number
PIC16F688-I/STG
Description
IC PIC MCU FLASH 4KX14 14TSSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr

Specifications of PIC16F688-I/STG

Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
UART/USART
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
12
Program Memory Size
7KB (4K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
14-TSSOP
For Use With
XLT14SS-1 - SOCKET TRANSITION 14DIP/14SSOPAC162061 - HEADER INTRFC MPLAB ICD2 20PINAC162056 - HEADER INTERFACE ICD2 16F688
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
4.2.5
Each PORTA pin is multiplexed with other functions.
The pins and their combined functions are briefly
described here. For specific information about individ-
ual functions such as the comparator or the A/D, refer
to the appropriate section in this data sheet.
FIGURE 4-1:
© 2009 Microchip Technology Inc.
PIN DESCRIPTIONS AND
DIAGRAMS
Data Bus
WPUDA
WPUDA
PORTA
PORTA
TRISA
TRISA
WR
IOCA
IOCA
Interrupt-on-
RD
WR
WR
WR
RD
RD
RD
Note 1:
Change
BLOCK DIAGRAM OF RA0
D
D
D
D
CK
CK
CK
CK
Comparator mode and ANSEL determines analog Input mode.
Q
Q
Q
Q
Q
Q
Q
Q
To Comparator
To A/D Converter
RD PORTA
Input Mode
Analog
Q
Q
(1)
Input Mode
Analog
EN
EN
D
D
0
4.2.5.1
Figure 4-1 shows the diagram for this pin. The RA0 pin
is configurable to function as one of the following:
• a general purpose I/O
• an analog input for the A/D
• an analog input to the comparator
• an analog input to the Ultra Low-Power Wake-up
• In-Circuit Serial Programming™ data
(1)
RAPU
1
Q3
+
-
ULPWUE
V
Weak
RA0/AN0/C1IN+/ICSPDAT/ULPWU
DD
I
Vss
ULP
V
T
PIC16F688
V
V
DD
SS
I/O PIN
DS41203E-page 37

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