Features: •8-bit real time clock/counter (TMR0) with 8-bit programmable prescaler
•Power-On Reset (POR)
•Brown-Out Protection
•Device Reset Timer (DRT) with shortRC-oscillator start up time
•Programmable Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation
•Sleep Timer
•8 High Voltage I/O
•4 Regulated I/O
•Wake up from SLEEP on pin change
•Programmable code-protection
•Power saving SLEEP mode
•Selectable oscillator options:
-RC:Low-cost RC oscillator
-XT:Standard crystal/resonator
-HS:High speed crystal/resonator
-LP:Power saving, low frequency crystal
•Glitch filtering on MCLRand pin change inputs
ApplicationThe PIC16HV540 fits perfectly in low-power battery appli-cations such as CO and smoke detection, toys, games,
security systems and automobile modules. The EPROM technology makes customizing of application programs
(transmitter codes, receiver frequencies, etc.) extremely fast and convenient. The small footprint package, for
through hole or surface mounting, make this microcontrol-ler perfect for applications with space limitations.
Low-cost, low-power, high-performance, ease of use and I/O flexibility make the PIC16HV540 very versatile even
in areas where no microcontroller use has been considered before (e.g., timer functions, replacement of "glue"
logic in larger systems, coprocessor applications).
Pinout
Specifications
| Program Memory Type |
OTP |
| Program Memory (KB) |
1.5 |
| CPU Speed (MIPS) |
5 |
| RAM Bytes |
25 |
| Timers |
1 x 8-bit |
| Temperature Range (C) |
-40 to 85 |
| Operating Voltage Range (V) |
3.5 to 15 |
| Pin Count |
18 |
Ambient temperature under bias...........................................................-20˚C to +85˚C
Storage temperature..........................................................................- 65˚C to +150˚C
Voltage on VDD with respect to VSS...............................................................0 to +16V
Voltage on MCLR with respect to VSS(2).........................................................0 to +14V
Voltage on all other pins with respect to VSS................................-0.6V to (VDD + 0.6V)
Total power dissipation(1)................................................................................800 mW
Max. current out of VSS pin................................................................................150 mA
Max. current into VDD pin...................................................................................100 mA
Max. current into an input pin (T0CKI only)......................................................±500 µA
Input clamp current, IIK (VI < 0 or VI > VDD).....................................................±20 mA
Output clamp current, IOK (V0 < 0 or V0 > VDD).................................................±20 mA
Max. output current sunk by any I/O pin...............................................................25 mA
Max. output current sourced by any I/O pin..........................................................10 mA
Max. output current sourced by a single I/O port (PORTA or B).............................40 mA
Max. output current sunk by a single I/O port (PORTA or B)..................................50 mA
DescriptionThe PIC16HV540 from Microchip Technology is alow-cost, high-performance, 8-bit, fully-static,EPROM-based CMOS microcontroller. It is pin and soft-ware compatible with the PIC16C5X family of devices. Itemploys a RISC architecture with only 33 single word/sin-gle cycle instructions. All instructions are single cycle except for program branches which take two cycles. ThePIC16HV540 delivers performance an order of magnitude higher than its competitors in the same price category. The 12-bit wide instructions are highly orthogonal resulting in 2:1 code compression over other 8-bit microcontrollers inits class. The easy-to-use and easy-to-remember instruc-tion set reduces development time significantly.
The PIC16HV540 is the first One-Time-Programmable (OTP) microcontroller with an on-chip 3 Volt and 5 Volt reg- ulator. This eliminates the need for an external regulator in manyapplications powered from 9 Volt or 12 Volt batteries or unregulated 6 Volt, 9 Volt or 12 Volt mains adapters. The PIC16HV540 is ideally suited for applications that require very low standby current at high voltages. These typically require expensive low current regulators.
The PIC16HV540 is equipped with special features that reduce system cost and power requirements. The Power-On Reset (POR) and Device Reset Timer (DRT) eliminate the need for external reset circuitry. There are four oscillator configurations to choose from, including the power-saving LP (Low Power) oscillator, cost saving RC oscillator, and XT and HS for crystal oscillators. Power sav-ing SLEEP mode, Watchdog Timer and code protection features improve system cost, power and reliability.
The UV erasable CERDIP packaged versions are ideal for code development, while the cost-effective OTP versions are suitable for production in any volume. The customer can take full advantage of Microchip's price leadership in OTP micro-controllers while benefiting from the OTP's flexibility.
The PIC16HV540 will in future be supported by afull-featured macro assembler, a software simulator, an in-circuit emulator, a 'C' compiler, fuzzy logic support tools, a low-costdevelopment programmer, and a full fea- tured programmer. All the tools are supported on IBM PC and compatible machines. Functions that correspond to the PIC16C54 (such as assembly and programming) can utilize existing tools.
PIC16HV540 Data Sheet
