PIC18F87J50 USB Microcontrollers - Microchip

Microchip announced the eight-member PIC18F87J50 USB microcontrollers. The new microcontroller family provides 12 MIPS performance and has integrated Full-Speed USB 2.0.  The USB microcontroller family is designed to operate in harsh environments and in situation where only occasionally connection is needed to USB hosts or personal computers.

Applications of PIC18F87J50 USB microcontrollers include:

• Industrial: manufacturing tools, smart displays, micro fuel cells, data loggers, gambling-machine peripherals,  industrial timers, gas-flow analyzers, RFID readers, robot-controller interfaces.
• Automotive: ultrasonic sensors, vehicle trace recorders (black boxes), vehicle-network bus diagnostic tools.
• Medical: advanced wheel chairs, voice-activated applications, research-equipment automation.
• Consumer: white-board digitizers, business-card scanners, voice recorders, MP3 players, uninterruptible power-supply, security-system.
• Battery-powered: handheld tools, remote controls, sensors, security applications, home automation

The PIC18F87J50 family includes nanoWatt Technology for low power consumption in sleep mode, which is ideal for battery-powered applications. The USB microcontroller family offer up to 65 available I/O, 128 KB of Flash program memory and a rich in-chip peripheral set, including a 12-channel 10-bit ADC and a Parallel Master Port for connection to external memory and displays. All these features make this new USB microcontroller family ideally suited for  embedded-control applications.

64 Pin PIC18F6xJ5x USB Microcontrollers  (64-pin TQFP )

80 Pin PIC18F8xJ5x USB microcontrollers  80-pin TQFP

Members of PIC18F87J50 USB microcontroller family:
(device, program memory, I/O, ADC)

1. PIC18F65J50, 32K, 49, 8
2. PIC18F66J50, 64K, 49, 8
3. PIC18F66J55, 96K, 49, 8
4. PIC18F67J50, 128K, 49, 8
5. PIC18F85J50, 32K, 65, 12
6. PIC18F86J50, 64K, 65, 12
7. PIC18F86J55, 96K, 65, 12
8. PIC18F87J50, 128K, 65, 12

All devices have 3904 bytes of SRAM data memory. Here you can view detailed of PIC18F87J50 USB microcontrollers:

Microchip PIC18F87J50 USB Microcontroller Family Device Selector

Block Diagram of PIC18F6xJ5x (64 pin):

Block Diagram of Microchip PIC18F6xJ5x (64 pin): PIC18F65J50, PIC18F66J50, PIC18F66J55, PIC18F67J50 USB Microcontrollers

Block Diagram of PIC18F8xJ5x (80 pin):

Block Diagram of Microchip PIC18F8xJ5x (80 pin): PIC18F85J50, PIC18F86J50, PIC18F86J55, PIC18F87J50 USB Microcontrollers

Features of PIC18F87J50 USB microcontrollers

• Universal Serial Bus Features:
  • USB V2.0 Compliant SIE
  • Low Speed (1.5 Mb/s) and Full Speed (12 Mb/s)
  • Supports up to 32 Endpoints (16 bidirectional)
  • Supports Control, Interrupt, Isochronous and Bulk Transfers
  • On-Chip USB Transceiver
  • 3.9-Kbyte Dual Access RAM for USB
• Peripheral Highlights:
  • High-Current Sink/Source 25 mA/25mA (PORTB and PORTC)
  • Four Input Change Interrupts
  • Four Programmable External Interrupts
  • Two Capture/Compare/PWM (CCP) modules
  • Three Enhanced Capture/Compare/PWM (ECCP) modules:
    • One, two or four PWM outputs
    • Selectable polarity
    • Programmable dead time
    • Auto-shutdown and auto-restart
  • 8-Bit Parallel Master Port/Enhanced Parallel Slave Port with 16 Address Lines
  • Two Master Synchronous Serial Port (MSSP) modules supporting 3-Wire SPI (all 4 modes) and I2CMaster and Slave modes
  • Dual Analog Comparators with Input Multiplexing
  • 10-Bit, up to 12-Channel Analog-to-Digital (A/D) Converter module:
    • Auto-acquisition capability
    • Conversion available during Sleep
  • Two Enhanced USART modules:
    • Supports RS-485, RS-232 and LIN 1.2
    • Auto-wake-up on Start bit
    • Auto-Baud Detect
• Flexible Oscillator Structure:
  • Internal 31 kHz Oscillator, Tunable Internal Oscillator, 31 kHz to 8 MHz
  • Two External Clock modes, up to 48 MHz
  • High-Precision PLL for USB
  • Secondary Oscillator using Timer1 @ 32 kHz
  • Fail-Safe Clock Monitor:
    • Allows for safe shutdown if any clock stops
• External Memory Bus (80-pin devices only):
  • Address Capability of up to 2 Mbytes
  • 8-Bit or 16-Bit Interface
  • 12-Bit, 16-Bit and 20-Bit Addressing modes
• Special Microcontroller Features:
  • 5.5V Tolerant Digital Inputs
  • C Compiler Optimized Architecture for Re-Entrant Code
  • Low-Power, High-Speed CMOS Flash Technology
  • Power Management Features:
    • Run: CPU on, peripherals on
    • Sleep: CPU off, peripherals off
    • Idle: CPU off, peripherals on
  • Priority Levels for Interrupts
  • 8 x 8 Single-Cycle Hardware Multiplier
  • Self-Programmable under Software Control
  • Extended Watchdog Timer (WDT):
    • Programmable period from 4 ms to 131s
  • Single-Supply In-Circuit Serial Programming (ICSP) via Two Pins
  • In-Circuit Debug (ICD) with 3 Breakpoints via Two Pins
  • On-Chip 2.5V Regulator
  • Operating Voltage Range of 2.0V to 3.6V
  • Flash Program Memory of 10000 Erase/Write Cycles and 20-Year Data Retention

And here are the highlighted features:

• USB 2.0 certified, Full-Speed USB connectivity, and 12 megabits-per-second
• 12 MIPS at 3V (up to 48 MHz operation) in 64- and 80-pin TQFP packages
• Up to 128 Kbytes of Flash program memory and 4 Kbytes of RAM
• Stand-alone USB operation—eliminates need for separate USB interface
• Up to 65 I/O
• 5 PWMs, two 8-bit timers and three 16-bit timers
• 12-channel, 10-bit ADC and 2 comparators
• 2 SPI/I2C serial ports
• 2 UARTs, and a Parallel MASTER Port for connection to external memory and displays

Core Features of PIC18F87J50 USB Microcontroller Family

nanoWatt TECHNOLOGY

All member of PIC18F87J50 USB microcontroller family incorporate a range of features that can reduce power consumption. Key items include:

• Alternate Run Modes: By clocking the controller from the Timer1 source or the internal RC oscillator, power consumption during code execution can be reduced by as much as 90%.
• On-the-Fly Mode Switching: The power-managed modes are invoked by user code during operation, allowing the user to incorporate power-saving ideas into their application’s software design.
• Multiple Idle Modes: The controller can also run with its CPU core disabled but the peripherals still active. In these states, power consumption can be reduced even further, to as little as 4% of normal operation requirements.

UNIVERSAL SERIAL BUS (USB)

PIC18F87J50 USB microcontroller family incorporate a fully-featured Universal Serial Bus communications module with a built-in transceiver that is compliant with the USB Specification Revision 2.0. The module supports both low-speed and full-speed communication for all supported data transfer types.

OSCILLATOR OPTIONS AND FEATURES

All of the devices in the PIC18F87J50 USB microcontroller family offer five different oscillator options, allowing users a range of choices in developing application hardware. These include:

• Two Crystal modes, using crystals or ceramic resonators.
• Two External Clock modes, offering the option of a divide-by-4 clock output.
• A Phase Lock Loop (PLL) frequency multiplier, available to the high-speed crystal, external oscillator and internal oscillator, providing a clock speed up to 48 MHz.
• An internal oscillator block which provides an 8 MHz clock and an INTRC source (approximately 31 kHz, stable over temperature and VDD), as well as a range of 6 user-selectable clock frequencies, between 125 kHz to 4 MHz, for a total of 8 clock frequencies. This option frees an oscillator pin for use as an additional general purpose I/O.
• Dual clock operation, allowing the USB module to run from a high-frequency oscillator while the rest of the microcontroller is clocked at a different frequency.

The internal oscillator block provides a stable reference source that gives the family additional features for robust operation:

• Fail-Safe Clock Monitor: This option constantly monitors the main clock source against a reference signal provided by the internal oscillator. If a clock failure occurs, the controller is switched to the internal oscillator, allowing for continued low-speed operation or a safe application shutdown.
• Two-Speed Start-up: This option allows the internal oscillator to serve as the clock source from Power-on Reset, or wake-up from Sleep mode, until the primary clock source is available.

EXPANDED MEMORY

The PIC18F87J50 USB microcontroller family provides ample room for application code, from 32 Kbytes to 128 Kbytes of code space. The Flash cells for program memory are rated to last in excess of 10000 erase/write cycles. Data retention without refresh is conservatively estimated to be greater than 20 years. The Flash program memory is readable and writable during normal operation. The PIC18F87J50 USB microcontroller family also provides plenty of room for dynamic application data with up to 3904 bytes of data RAM.

EXTERNAL MEMORY BUS

In the event that 128 Kbytes of memory are inadequate for an application, the 80-pin members of the PIC18F87J50 USB microcontroller family also implement an External Memory Bus (EMB). This allows the controller.s internal program counter to address a memory space of up to 2 Mbytes, permitting a level of data access that few 8-bit devices can claim. This allows additional memory options, including:

• Using combinations of on-chip and external memory up to the 2-Mbyte limit
• Using external Flash memory for reprogrammable application code or large data tables
• Using external RAM devices for storing large amounts of variable data

EXTENDED INSTRUCTION SET

The PIC18F87J50 USB microcontroller family implements the optional extension to the PIC18 instruction set, adding 8 new instructions and an Indexed Addressing mode. Enabled as a device configuration option, the extension has been specifically designed to optimize re-entrant application code originally developed in high-level languages, such as C language.

EASY MIGRATION

All devices of PIC18F87J50 USB microcontroller family share the same rich set of peripherals, allowing for a smooth migration path as applications grow and evolve. The consistent pin-out scheme used throughout the entire family also aids in migrating to the next larger device. This is true when moving between the 64-pin members, between the 80-pin members, or even jumping from 64-pin to 80-pin devices. The PIC18F87J50 USB microcontroller family is also pin compatible with other PIC18 families, such as the PIC18F87J10, PIC18F87J11, PIC18F8720 and PIC18F8722. This allows a new dimension to the evolution of applications, allowing developers to select different price points within Microchip’s PIC18 portfolio, while maintaining the same feature set.

Other Special Features of PIC18F87J50 USB Microcontroller Family

• Communications: The PIC18F87J50 USB microcontroller family incorporates a range of serial and parallel communication peripherals, including a fully featured Universal Serial Bus communications module that is compliant with the USB Specification Rev 2.0. This device also includes 2 independent Enhanced USARTs and 2 Master SSP modules, capable of both SPI and I2C. (Master and Slave) modes of operation. The device also has a parallel port and can be configured to serve as either a Parallel Master Port or as a Parallel Slave Port.
• 10-Bit A/D Converter: This module incorporates programmable acquisition time, allowing for a channel to be selected and a conversion to be initiated without waiting for a sampling period, and thus, reducing code overhead.
• CCP Modules: All devices in the family incorporate two Capture/Compare/PWM (CCP) modules and three Enhanced CCP modules to maximize flexibility in control applications. Up to four different time bases may be used to perform several different operations at once. Each of the three ECCPs offers up to four PWM outputs, allowing for a total of 12 PWMs. The ECCPs also offer many beneficial features, including polarity selection, programmable dead time, auto-shutdown and restart and Half-Bridge and Full-Bridge Output modes.
• Extended Watchdog Timer (WDT): This enhanced version incorporates a 16-bit prescaler, allowing an extended time-out range that is stable across operating voltage and temperature. See Section 28.0 .Electrical Characteristics. for time-out periods.

Development Tools for PIC18F87J50 USB Microcontroller Family

PIC18F87J50 USB Microcontroller family is supported by Microchip's standard development systems, including:

• The free MPLAB IDE with Visual Device Initializer
  MPLAB Visual Device Initializer (VDI) graphically configures the microprocessor and peripherals, and when complete,  generates code usable in assembly language or C code
• MPLAB ICD 2 In-Circuit Debugger
  A lowcost realtime debugger and programmer
• MPLAB C18 C Compiler
  A full featured ANSI-compliant C compiler for PIC18 family. MPLAB C18 C Compiler is integrated component of MPLAB IDE, alowing source level debugging with MPLAB ICD 2 in- circuit debugger, MPLAB REAL ICE emulator and  MPLAB SIM simulator. (Microchip offer 60 day demo of this C Compiler )
• The $59.99 PICDEM HPC Explorer Board
  A low-cost demo board to evaluate the performance of High Pin Count (HPC) 8-bit PIC18F series microcontrollers. The board features a PIC18F8722. which is the superset of the entire 64 and 80-pin PIC18F general purpose family. A daughter board (mezzanine) is also part of the kit and allows different processors sharing the same pin-out to be mounted and tested on the Explorer board.
• The $39.99 PICDEM HPC Explorer plug-in module for the PIC18F87J50 USB microcontrollers.

All eight-member PIC18F87J50 USB Microcontroller family is currently available in 64-pin TQFP or 80-pin TQFP package options. Pricing starts at $2.98 each in 10K unit qty.

More information: Microchip’s PIC18F87J50 USB Microcontroller Family