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1996 Microchip Technology Inc.
Advanced Information
DS30260A-page 3
PIC16FR6X
1.0
GENERAL DESCRIPTION
The PIC16FR6X is a family of
mance, CMOS, fully-static, 8-bit microcontrollers.
All PIC16/17 microcontrollers employ an advanced
RISC architecture. The PIC16FR6X microcontroller
family has enhanced core features, eight-level deep
stack, and multiple internal and external interrupt
sources. The separate instruction and data buses of
the Harvard architecture allow a 14-bit wide instruction
word with separate 8-bit wide data. The two stage
instruction pipeline allows all instructions to execute in
a single cycle, except for program branches (which
require two cycles). A total of 35 instructions (reduced
instruction set) are available. Additionally, a large reg-
ister set gives some of the architectural innovations
used to achieve a very high performance.
PIC16FR6X microcontrollers typically achieve a 2:1
code compression and a 4:1 speed improvement over
other 8-bit microcontrollers in their class.
The
PIC16FR62A
devices have 128 bytes of RAM and
22 I/O pins. In addition, several peripheral features are
available, including: three timer/counters, one Capture/
Compare/PWM module and one serial port. The Syn-
chronous Serial Port can be configured as either a 3-
wire Serial Peripheral Interface (SPI) or the two-wire
Inter-Integrated Circuit (I
C) bus.
The
PIC16FR63
devices have 192 bytes of RAM and
22 I/O pins. In addition, several peripheral features are
available, including: three timer/counters, two Capture/
Compare/PWM modules and two serial ports. The Syn-
chronous Serial Port can be configured as either a
3-wire Serial Peripheral Interface (SPI) or the two-wire
Inter-Integrated Circuit (I
C) bus. The Universal Syn-
chronous
Asynchronous
(USART) is also know as a Serial Communications
Interface or SCI.
The
PIC16FR64A
devices have 128 bytes of RAM and
33 I/O pins. In addition, several peripheral features are
available, including: three timer/counters, one Capture/
Compare/PWM module and one serial port. The Syn-
chronous Serial Port can be configured as either a 3-
wire Serial Peripheral Interface (SPI) or the two-wire
Inter-Integrated Circuit (I
Slave Port is also provided.
The
PIC16FR65
and
PIC16FR65A
bytes of RAM and 33 I/O pins. In addition, several
peripheral features are available, including: three timer/
counters, two Capture/Compare/PWM modules and
two serial ports. The Synchronous Serial Port can be
configured as either a 3-wire Serial Peripheral Interface
(SPI) or the two-wire Inter-Integrated Circuit (I
The Universal Synchronous Asynchronous Receiver
Transmitter (USART) is also known as a Serial Com-
munications Interface or SCI. An 8-bit Parallel Slave
Port is also provided.
low-cost, high-perfor-
2
2
Receiver
Transmitter
2
C) bus. An 8-bit Parallel
devices have 192
2
C) bus.
The PIC16FR6X device family has special features to
reduce external components, thus reducing cost,
enhancing system reliability and reducing power con-
sumption. There are four oscillator options, of which the
single pin RC oscillator provides a low-cost solution,
the LP oscillator minimizes power consumption, XT is
a standard crystal, and the HS is for High Speed crys-
tals. The SLEEP (power-down) mode offers a power
saving mode. The user can wake the chip from SLEEP
through several external and internal interrupts, and
reset(s).
A highly reliable Watchdog Timer with its own on-chip
RC oscillator provides protection against software lock-
up.
The PIC16FR6X family fits perfectly in applications
ranging from high-speed automotive and appliance
control to low-power remote sensors, keyboards and
telecom processors. The
FlexROM
customization of application programs (transmitter
codes, motor speeds, receiver frequencies, etc.)
extremely fast and convenient. The small footprint
packages make this microcontroller series perfect for
all applications with space limitations. Low-cost, low-
power, high performance, ease-of-use, and I/O flexibil-
ity make the PIC16FR6X very versatile even in areas
where no microcontroller use has been considered
before (e.g. timer functions, serial communication, cap-
ture and compare, PWM functions, and co-processor
applications).
technology makes
1.1
Family and Upward Compatibility
Those users familiar with the PIC16C5X family of
microcontrollers will realize that this is an enhanced
version of the PIC16C5X architecture. Code written for
PIC16C5X can be easily ported to PIC16FR6X family
of devices.
1.2
Development Support
The PIC16FR6X family is supported by a full-featured
macro assembler, a software simulator, an in-circuit
emulator, a low-cost development programmer, and a
full-featured programmer. A “C” compiler and fuzzy
logic support tools are also available.