Decipher Chip Microchip PIC17C756A High-Performance 8-Bit CMOS EPROM Microcontrollers

We can decipher Chip Microchip PIC17C756A High-Performance 8-Bit CMOS EPROM Microcontroller, please view the MCU IC features for your reference:


Microcontroller Core Features:

· Only 58 single word instructions to learn

· All single cycle instructions (121 ns) except for program branches and table reads/writes which are two-cycle


· Operating speed:

– DC – 33 MHz clock input

– DC – 121 ns instruction cycle

· 8 x 8 Single-Cycle Hardware Multiplier


· Interrupt capability

· 16 level deep hardware stack

· Direct, indirect, and relative addressing modes

· Internal/external program memory execution, Capable of addressing 64K x 16 program memory

Special Microcontroller Features:

· Power-on Reset (POR), Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)

· Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation


10-bit, multi-channel analog-to-digital converter

High current sink/source for direct LED drive

Four capture input pins

– Captures are 16-bit, max resolution 121 ns

Three PWM outputs (resolution is 1- to 10-bits)

TMR0: 16-bit timer/counter with

8-bit programmable prescaler

TMR1: 8-bit timer/counter

TMR2: 8-bit timer/counter

TMR3: 16-bit timer/counter

Two Universal Synchronous Asynchronous

Receiver Transmitters (USART/SCI) with Independent baud rate generators

Synchronous Serial Port (SSP) with SPI™ and I2C™ modes (including I2C master mode)


· Brown-out Reset

· Code-protection

· Power saving SLEEP mode

· Selectable oscillator options

CMOS Technology:

· Low-power, high-speed CMOS EPROM technology

· Fully static design

· Wide operating voltage range (3.0V to 5.5V)

· Commercial and Industrial temperature ranges

· Low-power consumption

– < 5 mA @ 5V, 4 MHz

– 100 µA typical @ 4.5V, 32 kHz

– < 1 µA typical standby current @ 5V

A highly reliable Watchdog Timer with its own on-chip

This data sheet covers the PIC17C7XX group of the PIC17CXXX family of microcontrollers. The following devices are discussed in this data sheet:

· PIC17C752

· PIC17C756A

· PIC17C762

· PIC17C766

The   PIC17C7XX   devices   are   68/84-pin,

EPROM-based members of the versatile PIC17CXXX

family of low-cost, high-performance, CMOS,

fully-static, 8-bit microcontrollers.

All PICmicro™ microcontrollers employ an advanced

RISC architecture. The PIC17CXXX has enhanced

core features, 16-level deep stack, and multiple internal

and external interrupt sources. The separate instruc-

tion and data buses of the Harvard architecture allow a

16-bit wide instruction word with a separate 8-bit wide

data path. The two stage instruction pipeline allows all

instructions to execute in a single cycle, except for pro-

gram branches (which require two cycles). A total of 58

instructions (reduced instruction set) are available.

Additionally, a large register set gives some of the

architectural innovations used to achieve a very high

performance. For mathematical intensive applications

all devices have a single cycle 8 x 8 Hardware Multi-


PIC17CXXX microcontrollers typically achieve a 2:1

code compression and a 4:1 speed improvement over

other 8-bit microcontrollers in their class.

PIC17C7XX devices have up to 902 bytes of RAM and

66 I/O pins. In addition, the PIC17C7XX adds several

peripheral features useful in many high performance

applications including:

RC oscillator provides protection against software mal-


There are four configuration options for the device

operational mode:

· Microprocessor

· Microcontroller

· Extended microcontroller

· Protected microcontroller

The microprocessor and extended microcontroller

modes allow up to 64K-words of external program


The device also has Brown-out Reset circuitry. This

allows a device reset to occur if the device VDD falls

below the Brown-out voltage trip point (BVDD). The

chip will remain in Brown-out Reset until VDD rises

above BVDD.

A UV-erasable CERQUAD-packaged version (compat-

ible with PLCC) is ideal for code development while the

cost-effective One-Time Programmable (OTP) version

is suitable for production in any volume.

The PIC17C7XX fits perfectly in applications that

require extremely fast execution of complex software

programs. These include applications ranging from

precise motor control and industrial process control to

automotive, instrumentation, and telecom applications.

The EPROM technology makes customization of appli-

cation programs (with unique security codes, combina-

tions, model numbers, parameter storage, etc.) fast and

convenient. Small footprint package options (including

die sales) make the PIC17C7XX ideal for applications

with space limitations that require high performance.

High speed execution, powerful peripheral features,

flexible I/O, and low power consumption all at low cost



Four timer/counters

Four capture inputs

make the PIC17C7XX ideal for a wide range of embed-

ded control applications.



Three PWM outputs

Two independent Universal Synchronous Asyn-


Family and Upward Compatibility

chronous Receiver Transmitters (USARTs)

· An A/D converter (multi-channel, 10-bit resolu-


· A Synchronous Serial Port

(SPI and I2C w/ Master mode)

These special features reduce external components,

thus reducing cost, enhancing system reliability and

reducing power consumption.

The PIC17CXXX family of microcontrollers have archi-

tectural enhancements over the PIC16C5X and

PIC16CXX families. These enhancements allow the

device to be more efficient in software and hardware

requirements. Refer to Appendix A for a detailed list of

enhancements and modifications. Code written for

PIC16C5X or PIC16CXX can be easily ported to

PIC17CXXX devices (Appendix B).

There are four oscillator options, of which the single pin


Development Support

RC oscillator provides a low-cost solution, the LF oscil-

lator is for low frequency crystals and minimizes power

consumption, XT is a standard crystal, and the EC is for

external clock input.

The SLEEP (power-down) mode offers additional

power saving. Wake-up from SLEEP can occur

through several external and internal interrupts and

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