PIC16F685-I/P Microchip Technology, PIC16F685-I/P Datasheet - Page 73

• Manufacturer Part Number: PIC16F685-I/P
• Description: IC PIC MCU FLASH 4KX14 20DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F685-I/P

• Program Memory Type: FLASH
• Program Memory Size: 7KB (4K x 14)
• Package / Case: 20-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 18
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C/SPI/SSP/EUSART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163029, DV164120
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162061 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOICDM163029 - BOARD PICDEM FOR MECHATRONICSACICE0203 - MPLABICE 20P 300 MIL ADAPTER
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4.4.3
Each PORTB pin is multiplexed with other functions. The
pins and their combined functions are briefly described
here. For specific information about individual functions
such as the SSP, I
appropriate section in this data sheet.
© 2006 Microchip Technology Inc.
PIN DESCRIPTIONS AND
DIAGRAMS
2
C™ or interrupts, refer to the
PIC16F631/677/685/687/689/690
Preliminary
4.4.3.1
Figure 4-7 shows the diagram for this pin. The
RB4/AN10/SDI/SDA
as one of the following:
• a general purpose I/O
• an analog input for the ADC (except PIC16F631)
• a SPI data I/O
• an I
FIGURE 4-7:
Data Bus
Note
PORTB
PORTB
WPUB
WPUB
TRISB
TRISB
IOCB
IOCB
Note 1: SDI
Interrupt-on-
WR
WR
WR
WR
RD
RD
RD
RD
Change
Available on PIC16F677/PIC16F687/PIC16F689/PIC16F690
only.
2
C data I/O
1:
2:
D
D
D
D
To SSPSR
To A/D Converter
CK
CK
CK
CK
PIC16F687/PIC16F689/PIC16F690 only.
ANSEL determines Analog Input mode.
Not implemented on PIC16F631.
RB4/AN10/SDI/SDA
Q
Q
Q
Q
Q
Q
Q
Q
and
(1)
Input Mode
BLOCK DIAGRAM OF RB4
RD PORTB
Analog
SSPSR
pin is configurable to function
(2)
SDA
From
SSP
SSPEN
(1)
RABPU
1
0
0
1
Input Mode
Analog
1
0
0
1
Q
Q
are
EN
EN
DS41262C-page 71
(1)
D
D
available
V
DD
Weak
V
V
Q3
DD
SS
ST
I/O Pin
on