PIC16F690-E/P Microchip Technology Inc., PIC16F690-E/P Datasheet - Page 76

• 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
4.4.3.4
Figure 4-10 shows the diagram for this pin. The
RB7/TX/CK
the following:
• a general purpose I/O
• an asynchronous serial output
• a synchronous clock I/O
DS41262C-page 74
Note 1: TX
(1)
PIC16F687/PIC16F689/PIC16F690 only.
RB7/TX/CK
pin is configurable to function as one of
and
CK
are
available
Preliminary
on
FIGURE 4-10:
Data Bus
PORTB
PORTB
WPUB
WPUB
TRISB
TRISB
IOCB
IOCB
Interrupt-on-
WR
WR
WR
WR
RD
RD
RD
RD
Change
Available on PIC16F687/PIC16F689/PIC16F690 only.
D
D
D
D
CK
CK
CK
CK
Q
Q
Q
Q
Q
Q
Q
Q
BLOCK DIAGRAM OF RB7
EUSART
EUSART
© 2006 Microchip Technology Inc.
RD PORTB
CK
TX
SPEN
TXEN
SYNC
‘1’
RABPU
1
0
0
1
Q
Q
1
0
0
1
1
0
0
1
EN
EN
D
D
V
DD
Weak
V
V
DD
SS
Q3
I/O Pin