PIC16F690-E/P Microchip Technology Inc., PIC16F690-E/P Datasheet - Page 74

• Manufacturer Part Number: PIC16F690-E/P
• Description: 20 PIN, 7 KB FLASH, 256 RAM, 18 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F690-E/P

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 7 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 18
• Interface: USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 20-pin PDIP
• Programmable Memory: 7K Bytes
• Ram Size: 256 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F631/677/685/687/689/690
4.4.3.2
Figure 4-8 shows the diagram for this pin. The
RB5/AN11/RX/DT
one of the following:
• a general purpose I/O
• an analog input for the ADC (except PIC16F631)
• an asynchronous serial input
• a synchronous serial data I/O
DS41262C-page 72
Note 1: RX
2: AN11 is not implemented on PIC16F631.
PIC16F687/PIC16F689/PIC16F690 only.
RB5/AN11/RX/DT
(1,2)
and
pin is configurable to function as
DT
are
available
Preliminary
on
FIGURE 4-8:
Data Bus
PORTB
PORTB
WPUB
WPUB
TRISB
TRISB
IOCB
IOCB
Interrupt-on-
WR
WR
WR
WR
RD
RD
RD
RD
Change
Note
Available on PIC16F687/PIC16F689/PIC16F690 only.
D
D
D
D
To EUSART RX/DT
To A/D Converter
CK
CK
CK
CK
1:
2:
Q
Q
Q
Q
Q
Q
Q
Q
ANSEL determines Analog Input mode.
Not implemented on PIC16F631.
Input Mode
BLOCK DIAGRAM OF RB5
RD PORTB
Analog
EUSART
EUSART
From
© 2006 Microchip Technology Inc.
(2)
SYNC
SPEN
DT
Input Mode
(1)
RABPU
Analog
1
0
0
1
1
0
0
1
Q
Q
EN
EN
(1)
D
D
V
DD
Weak
V
V
Q3
DD
SS
ST
I/O Pin