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PIC16C432-ISS

OTP 8-Bit CMOS MCU with LIN Transceiver

Microchip Technology 

1.0 GENERAL DESCRIPTION

The PIC16C432 is a 20-pin EPROM-based member of

the versatile PIC® family of low cost, high performance,

CMOS, fully-static, 8-bit microcontrollers with an inte-

grated LIN transceiver.

The LIN physical layer is implemented in hardware with

a voltage range from 0V to 18V, with a 40V transient

capability. The LIN protocol is to be implemented in

firmware, which enables flexibility with future revisions

of the LIN protocol.

All PIC® microcontrollers employ an advanced RISC

architecture. The PIC16C432 device 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 pro-

gram branches (which require two cycles). A total of 35

instructions (reduced instruction set) are available.

Additionally, a large register set gives some of the

architectural innovations used to achieve a very high

performance.

PIC16C432 microcontrollers typically achieve a 2:1

code compression and a 4:1 speed improvement over

other 8-bit microcontrollers in their class.

The PIC16C432 has 12 I/O pins and an 8-bit timer/

counter with an 8-bit programmable prescaler. In addi-

tion, the PIC16C432 adds two analog comparators with

a programmable on-chip voltage reference module.

The comparator module is ideally suited for applica-

tions requiring a low cost analog interface (e.g., battery

chargers, threshold detectors, white goods

controllers, etc.).

PIC16C432 devices have special features to reduce

external components, thus reducing system 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 crystals.

The SLEEP (power-down) mode offers power savings.

The user can wake-up the chip from SLEEP through

several external and internal interrupts and RESET.

PIC16C432

A highly reliable Watchdog Timer with its own on-chip

RC oscillator provides protection against software lock-

up.

A UV erasable CERDIP packaged version is ideal for

code development, while the cost effective One-Time-

Programmable (OTP) version is suitable for production

in any volume.

A simplified block diagram of the PIC16C432 is shown

in Figure 4-1.

The PIC16C432 series fits perfectly in automotive and

industrial applications, which require LIN as a commu-

nication platform. The EPROM technology makes

customization of application programs (detection

levels, pulse generation, timers, 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 per-

formance, ease of use and I/O flexibility make the

PIC16C432 very versatile.

1.1 Development Support

The PIC16C432 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 is also

available.

 2000-2013 Microchip Technology Inc.

Preliminary

DS41140C-page 3

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