Single Board Computers
Microprocessor Training Systems
Custom Engineering & Manufacturing

/SBC_microcontrollers/

FEATURES

• CPU: Infineon CMOS 80C535 with 11.0592 MHz. crystal speed.
• DIGITAL I/O: 18 TTL level, bit programmable I/O lines, with an additional 3 input and 3 output lines available with the purchase of the upgrade option. The 24 I/O lines, 8 of which can be optionally configured as high drive outputs, terminate to a standard 50 pin I/O rack header connector.
• ANALOG INPUTS: Fast 8 channel, 8 bit analog to digital converter with an 18 microsecond conversion rate. The A/D has user programmable references allowing 10 bit resolution through software.
• ANALOG OUTPUTS: The optional D/A has 4 channels with 8 bit resolution.
• COUNTER/TIMERS/PWM: Three, 16 bit counter/timers are included standard. One of these has four I/O lines which can be used as compare outputs, or capture inputs (for Pulse Width Modulation/Demodulation). A watchdog timer is also provided. An additional 16 bit counter/timer is included with purchase of the upgrade option.
• COMMUNICATION: A total of 3 RS232 serial ports, 1 of which is standard and 2 of which are provided with purchase of the upgrade option. Conversion of any port from RS232 to RS422/485 is available optionally.
• INTERFACES: A Backlit LCD interface is provided, standard, with an optional 20 key, keypad interface available. Also included is a 50 pin bus expansion header.
• PERIPHERAL EXPANSION: The address bus, data bus, reset and interrupt lines are available on a 50 pin bus expansion header for connecting to external peripherals from EMAC, or to peripherals of your own design.
• MEMORY: Memory space for up to 128K of EPROM/FLASH and up to 128K of RAM. Total memory capacity is 256K bytes.
• DISTRIBUTION CD: A CD is included with a demo program in assembly language and both assembly and C drivers for the on-board peripherals.
• THIRD PARTY SOFTWARE: The 80C535 is supported by Keil Software's C-compiler and their RTOS. A more economical DDS ANSI C subset compiler is also available as an alternative. There are C drivers for the on-board peripherals.

SPECIFICATIONS

• POWER REQUIREMENTS: Single Voltage supply operation from +7 Vdc to +15 Vdc with on board regulation. Typical current draw is 45 ma standard, or 85 ma with upgrade.
  
• OPERATING TEMPERATURE: 0 to 70 degrees centigrade, humidity range without condensation 0% to 90% RH.
  
• DIGITAL I/O: 18 programmable TTL level digital I/O lines. Each line can be individually programmed as an input or an output. When programmed as outputs each line can source/sink 4 LS-TTL loads.
  
• ANALOG INPUTS: 8 analog inputs are multiplexed into a single 8 bit Analog to Digital Converter. Conversion time is 18 microseconds and the standard Voltage input range is 0 to 5 Vdc. Programmable references within the A/D allow some variation of the input range. This programmability allows the software to zoom in on a particular reading, thus extending the resolution of the A/D. Assembly language drivers are provided which achieve 10 bit resolution.
  
• ANALOG OUTPUTS: The optional D/A converter has four independent channels with 8 bit resolution. The D/A output Voltage range is 0 to 5 Vdc. A maximum settling time of 1 microsecond is required for each channel.
  
• MEMORY: Memory space for up to 128 K of EPROM/FLASH and up to 128 K of RAM. Total memory capacity is 256K bytes. The 535 directly accesses 128 K of memory (64 K EPROM and 64 K RAM) with the 64 K balance being Banked Selected memory. A 32 K ROM Monitor and a 32 K RAM is included. In addition to the EPROM/RAM memory is a 1K bit serial EEPROM. The EEPROM is a nonvolatile memory organized into 64, 16 bit words with over 10,000 write cycles guaranteed and unlimited read cycles.

OPTIONS

ON BOARD OPTIONS

• I/O: Upgrade Option provides 2 additional RS232 Serial Ports, a 16 bit timer/counter, and 6 additional I/O lines (3 in/ 3 out).
  • Conversion of 8 port lines to 8 high-drive (500 mA. Sink) outputs.
    
  • 4 Channel, 8 bit D/A Converter.
    
  • 20 Key, Keypad Interface.
    
• MEMORY: 128 K RAM Upgrade.
  • 128 K FLASH Upgrade
    
  • 32 K or 128 K of Battery Backed RAM Memory.
    
• REAL TIME CLOCK: Battery Backed Real Time Clock Calendar.
  
• COMMUNICATION: RS-422/485 replacement of RS232 Ports.
  
• CPU: High Speed CPU with True 10 bit A/D and additional RAM.
  
• SOFTWARE: Monitor/Debugger ROM, BASIC 52 ROM, C Compilers.
  

OTHER OPTIONS

• 12 or 16 key tactile membrane keypad.
  
• 2 line by 20 char LCD module and backlighting.
  
• Programmable 32 line Digital I/O Board.
  
• Signal Conditioning boards.
  
• EPROM Programmer.

PRICING (Single Unit. Includes: Integration, Setup, and Testing)

The MicroPac 535 was revised & improved for 2010. Included in these revisions was the switch to a PLCC Flash/EPROM from the older DIP packaged device. Also the CPU is now soldered directly to the board instead of being socketed, which makes for a more durable board. Other minor changes are listed in the Revision notes of the manual.

uPAC-535 STOCK CONFIGURATIONS:

**THIS PRODUCT IS NO LONGER AVAILABLE. CONSIDER USING: MICROPAC 515**

E331-01-10010 ... 535 SBC, 1 RS422/485

139.00

E331-01-10030 ... 535 SBC, 1 RS422/485, 2 RS232

183.00

E331-01-10040 ... 535 SBC, 1 RS232, 2 RS422/485

202.00

E331-01-10021 ... 535 SBC, 4 RS232, Keypad

179.00

PERIPHERAL OPTIONS

E020-25 .... 12 KEY MEMBRANE TELEPHONE STYLE KEYPAD

E020-21 .... 16 KEY MEMBRANE HEX STYLE KEYPAD

E020-30 .... 20 CHAR. X 2 LINE LCD DISPLAY

E020-31 .... 20 CHAR. X 2 LINE LCD BACKLIT DISPLAY

E020-32 .... 20 CHAR. X 4 LINE LCD DISPLAY

E020-33 .... 20 CHAR. X 4 LINE LCD BACKLIT DISPLAY

E010-11 .... Wall Transformer 110 V -  9 V 500 mA

E010-15 .... Wall Transformer 110 V -  9 V 1 A

E010-10 .... Wall Transformer 110 V - 12 V 800 mA

Other Available Options
Wiring Terminals and Interface Modules
Signal Conditioning Cards
Custom and Semi-custom Engineering Services