PIC16C433

Peripheral Features:
• Integrated LIN bus transceiver
• Wake-up on bus activity
• 12V battery operation for transceiver
• Thermal Shutdown for transceiver
• Ground loss protection
• Four-channel, 8-bit A/D converter
• 8-bit real-time clock/counter (TMR0) with 8-bit programmable prescalerPIN DIAGRAM

Special Microcontroller Features:
• In-Circuit Serial Programming™ (ICSP™)
• Internal 4 MHz oscillator with programmable calibration
• Selectable clockout
• 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
• Programmable code protection
• Power saving SLEEP mode
• Interrupt-on-pin change (GP0, GP1, GP3)
• Internal pull-ups on I/O pins (GP0, GP1, GP3)
• Internal pull-up on MCLR pin
• Selectable oscillator options:
- INTRC: Precision internal 4 MHz oscillator
- EXTRC: External low cost RC oscillator
- XT: Standard crystal/resonator
- HS: High speed crystal/resonator
- LP: Power saving, low frequency crystal

The PIC16C433 microcontroller fits well in applications ranging from automotive applications to home appliance applications. The EPROM technology makes customizing application programs extremely fast. The small footprint packages, for through hole or surface mounting, make this microcontroller series perfect for applications with space limitations. Low cost, low power, high performance, ease of use and I/O flexibility make the PIC16C433 series very versatile even in areas where no microcontroller use has been considered before (i.e., timer functions, replacement of glue logic and PLD's in larger systems, coprocessor applications).

Absolute Maximum Ratings †
Ambient Temperature under bias................................................... -40° to +125°C
Storage Temperature ..................................................................... -65° to +150°C
Voltage on any pin with respect to V_SS (except V_DD and MCLR) ..-0.6V to VDD +0.6V
Voltage on V_DD with respect to V_SS ......................................................... 0 to +7.0V
Voltage on MCLR with respect to V_SS* ........................................................0 to +14V
Voltage on LIN and VBAT with respect to V_SS ........................................................40V
Total power Dissipation .......................................................................................1.0W
Maximum Current out of V_SS pin ......................................................................300 mA
Maximum Current into V_DD pin .........................................................................250 mA
Input Clamp Current, IIK (V_I <0 or V_I> V_DD) .................................................. ±20 mA
Output Clamp Current, I_OK (V_O <0 or V_O>V_DD)............................................... ±20 mA
Maximum Output Current sunk by any I/O pin.....................................................25 mA
Maximum Output Current sourced by VDD (sourced by V_DD) ..............................25 mA
Maximum Output Current sourced by any I/O pin (sourced by V_DD) ...................25 mA
Maximum Current sunk by GPIO (sourced by V_DD)..............................................................................................200 mA
Maximum Current sourced by GPIO (sourced by V_DD) ........................................................................................200 mA
Maximum Current sourced by VBAT (sourced by V_BAT) ........................................................................................200 mA
Maximum Current sunk by LIN (sourced by V_BAT)................................................................................................200 mA
Maximum Current sunk by BACT...........................................................................................................................1.8 mA

* Voltage spikes below VSS at the MCLR pin, inducing currents greater than 80 mA, may cause latchup. Thus, a series
resistor of 50-100 should be used when applying a low level to the MCLR pin, rather than pulling this pin directly to
V_SS..
† NOTICE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at those or any other conditions, above
those indicated in the operation listings of this specification, is not implied. Exposure to maximum rating conditions for
extended periods may affect device reliability.

The PIC16C433 device is a low cost, high performance, CMOS, fully static, 8-bit microcontroller with integrated analog-to-digital (A/D) converter and an integrated LIN bus Transceiver.

The LIN physical layer of PIC16C433 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 PICmicro^® microcontrollers employ an advanced RISC architecture. The PIC16C433 microcontroller has enhanced core features, eight-level deep stack, and multiple internal and external interrupt sources. The separate instruction of PIC16C433 and data buses of the Harvard architecture allow a 14-bit wide instruction word with the separate 8-bit wide data. The two stage instruction pipeline of PIC16C433 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 register set gives some of the architectural innovations used to achieve a very high performance. PIC16C433 microcontroller typically achieve a 2:1 code compression and a 4:1 speed improvement over other 8-bit microcontrollers in their class.

The PIC16C433 device has 128 bytes of RAM, 5 I/O pins and 1 input pin. In addition, a timer/counter is available. Also a 4-channel, high speed, 8-bit A/D is provided. The 8-bit resolution is ideally suited for applications requiring low cost analog interface (i.e., thermostat control, pressure sensing, etc.)

The PIC16C433 device has special features to reduce external components, thus reducing cost, enhancing system of PIC16C433 reliability and reducing power consumption. The Power-on Reset (POR), Power-up Timer (PWRT), and Oscillator Start-up Timer (OST) eliminate the need for external RESET circuitry. There are five oscillator of v configurations to choose from, including INTRC precision internal Oscillator mode and the power saving LP (Low Power) Oscillator mode. Power saving SLEEP mode, Watchdog Timer and code protection features improve system cost, power and reliability. The SLEEP (power-down) feature provides a Power Saving mode. The user of v can wake-up the chip from SLEEP through several external and internal interrupts and RESETS.

A highly reliable Watchdog Timer with PIC16C433 own on-chip RC oscillator provides protection against software lockup.

A UV erasable windowed package version of PIC16C433 is ideal for code development, while the cost-effective One-Time- Programmable (OTP) version is suitable for productionin any volume. The customer of PIC16C433 can take full advantage of Microchip's price leadership in OTP microcontrollers, while benefiting from the OTP's flexibility.