PIC16F689-E/ML Microchip Technology, PIC16F689-E/ML Datasheet - Page 76

• Manufacturer Part Number: PIC16F689-E/ML
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,20PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F689-E/ML

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 18
• 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 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164324 - MODULE SKT FOR MPLAB 8DFN/16QFNAC162061 - HEADER INTRFC MPLAB ICD2 20PIN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
DS41262E-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
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
© 2008 Microchip Technology Inc.
RD PORTB
CK
TX
SPEN
TXEN
SYNC
‘1’
RABPU
0
1
1
0
Q
Q
0
1
1
0
0
1
1
0
EN
EN
D
D
V
DD
Weak
V
V
DD
SS
Q3
I/O Pin