PIC16F688-I/STG Microchip Technology, PIC16F688-I/STG Datasheet - Page 85
PIC16F688-I/STG
Manufacturer Part Number
PIC16F688-I/STG
Description
IC PIC MCU FLASH 4KX14 14TSSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(204 pages)
3.PIC16F688T-ISL.pdf
(6 pages)
4.PIC16F688T-ISL.pdf
(4 pages)
5.PIC16F688T-ISL.pdf
(688 pages)
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
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
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- PIC16F688T-ISL PDF datasheet #5
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10.0
The Enhanced Universal Synchronous Asynchronous
Receiver Transmitter (EUSART) module is a serial I/O
communications peripheral. It contains all the clock
generators, shift registers and data buffers necessary
to perform an input or output serial data transfer
independent of device program execution. The
EUSART, also known as a Serial Communications
Interface (SCI), can be configured as a full-duplex
asynchronous system or half-duplex synchronous
system.
communications with peripheral systems, such as CRT
terminals
Synchronous mode is intended for communications
with peripheral devices, such as A/D or D/A integrated
circuits, serial EEPROMs or other microcontrollers.
These devices typically do not have internal clocks for
baud rate generation and require the external clock
signal provided by a master synchronous device.
FIGURE 10-1:
© 2009 Microchip Technology Inc.
BRG16
Baud Rate Generator
SPBRGH
ENHANCED UNIVERSAL
SYNCHRONOUS
ASYNCHRONOUS RECEIVER
TRANSMITTER (EUSART)
and
Full-Duplex
SPBRG
personal
+ 1
EUSART TRANSMIT BLOCK DIAGRAM
F
Multiplier
OSC
BRG16
mode
SYNC
BRGH
computers.
TXEN
1 X 0 0
X 1 1 0
X 1 0 1
÷ n
x4
is
n
x16 x64
useful
Half-Duplex
0
0
0
MSb
(8)
for
Transmit Shift Register (TSR)
TX9D
TXREG Register
• • •
TX9
The EUSART module includes the following capabilities:
• Full-duplex asynchronous transmit and receive
• Two-character input buffer
• One-character output buffer
• Programmable 8-bit or 9-bit character length
• Address detection in 9-bit mode
• Input buffer overrun error detection
• Received character framing error detection
• Half-duplex synchronous master
• Half-duplex synchronous slave
• Programmable clock polarity in synchronous
The EUSART module implements the following
additional features, making it ideally suited for use in
Local Interconnect Network (LIN) bus systems:
• Automatic detection and calibration of the baud rate
• Wake-up on Break reception
• 13-bit Break character transmit
Block diagrams of the EUSART transmitter and
receiver are shown in Figure 10-1 and Figure 10-2.
modes
8
Data Bus
TRMT
LSb
0
TXIF
TXIE
PIC16F688
Pin Buffer
and Control
SPEN
DS41203E-page 83
Interrupt
TX/CK pin
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