Single Board Computer

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8051 Architecture single board computers for commercial use


The Mini51 board is available with 5 different processors (NEW!!! now includes Analog I/O on-board or with I2C compatible add-on board)

  • Processor options:
    • P89C51RD2 @ 12 MHz (model: Mini51-P)
    • P89C668 @ 12 MHz (model: Mini51-P8)
    • P89C669 @ 12 MHz (model: Mini51-P9)
    • DS89C420 @ 11.059 MHz (model: Mini51-U)
    • ADuC831 @ 11.059 MHz (model: Mini51-A831)
  • 64KBytes / 96KBytes / 16KBytes / 62KBytes on-chip Flash, In System Programmable (ISP) Code Memory
  • 768 bytes on-chip XRAM (for P89C51RD2)
  • or 7936 bytes on-chip XRAM (for P89C668)
  • or 2048 bytes on-chip data RAM (EDATA + XDATA) (for P89C669)
  • or 1024 bytes on-chip XRAM (for DS89C420)
  • or 2048 bytes on-chip XRAM (for ADuC831)
  • Selector switches to select between Normal Mode and ISP Program Mode
  • Standard serial port available as RS232 port.
  • (Only Mini51-P9 or Mini51-U) second serial port available as TTL or RS232.
  • Serial communication cable for connecting to computer's COM port
  • 14 pin connector for LCD (4 bit interface using on-chip port)
  • Optional LCD BackLighting Control via port pin
  • 10 pin connector for 5 X 5 matrix keyboard
  • 14 (or 12) unused port pins are brought out on a connector
  • On-board bridge rectifier and regulator to generate +5VDC (requires 9 Volts AC)
  • Accompanying disk contains ISP programming software and working example programs written in C to access the serial port, LCD and keyboard
  • I2C Compatible 64 KBytes EEPROM (24C512)
  • I2C Compatible Real Time Clock (DS1307) with Lithum Battery
  • (Only in Mini51-A831) on-chip 4KBytes EEPROM.
  • (Only in Mini51-A831) 8 Analog Inputs (12 bit), 2 analog outputs (12 bit), temperature sensor
  • (All models except Mini51-A831) Optional add-on board provides 8 Analog Inputs (8 bit), 2 analog outputs (8 bit).

Please note, the LCD and keyboard are NOT supplied with this board, you need to buy those separately. The board only provides interface connector for the LCD and keyboard.

Depending on the selected processor, there are 5 different models of this board:

  • Mini51-P: With P89C51RD2 (only 768 bytes on-chip XRAM, 2X speed)
  • Mini51-P8: With P89C668 (7936 bytes on-chip XRAM, 2X speed)
  • Mini51-P9: With P89C669 (96K on-chip code memory, 2048 bytes on-chip data memory (EDATA + XDATA), 2X speed)
  • Mini51-U: With DS89C420 (1024 bytes on-chip XRAM, second serial port, upto 12X speed)
  • Mini51-A831: With ADuC831 (2048 bytes on-chip XRAM, 8 Analog Inputs + 2 Analog outputs, 12 bit resolution)

Mini51 Model Selection Table:

Mini51 Model Name:

Mini51-P

Mini51-P8

Mini51-P9

Mini51-U

Mini51-A831

Processor

P89C51RD2

P89C668

P89C669

DS89C420

AduC831

Operating Frequency

12MHz

12MHz

12MHz

11.059MHz

11.059MHz

Speed

2X

2X

2X

upto 12X

1X

Program Flash (ISP)

64KB

64KB

96KB

16KB

62KB

On-chip SRAM

768 Bytes

7936 Bytes

2048 Bytes

1024 Bytes

2048 Bytes

Serial Ports

1

1

2

2

1

Hardware I2C support

No

Yes

Yes

No

Yes

Hardware SPI support

No

No

No

No

Yes

Temperature sensor

No

No

No

No

Yes

On-chip EEPROM

None

None

None

None

4KB

On-board Analog In

None

None

None

None

8 (12 bit)

On-board Analog Out

None

None

None

None

2 (12 bit)

SAIO Compatibility

Yes

Yes

Yes

Yes

No

Price (INR)*

6500.00

6950.00

6950.00

6950.00

7400.00

Price (USD)*

120.00

129.00

129.00

129.00

148.00

Price (EUR)*

111.00

119.10

119.10

119.10

127.20

SAIO add-on board:

         Compatible with all Mini51 models except Mini51-A831

         8 Analog inputs

         8 bit resolution

         Analog input range 0 to +5V

         2 Analog outputs with 8 bit resolution

         Analog output range 0 to +5V

         Compatible with Mini51

         Mounts directly on Mini51

         Serial input/output via I2C-bus

         Board size: 52mm X 32mm

         ADC/DAC driver routines (in C) available

8051 Single Board Computer:
SBC51: is Single Board Computer for 8051 family; 4 different models are available to support 4 different processors:

  • SBC51-A uses AT89C52 @ 11.059 MHz (Standard speed)
  • SBC51-P uses P89C51RD2 @ 11.059 MHz (Double speed)
  • SBC51-P9 uses P89C669 @ 11.059 MHz (Double speed)
  • SBC51-U uses DS89C450 @ 11.059 MHz (12X speed)
  • On-chip serial port available as RS232 port with DB9 connector.
  • Second serial port (available only with SBC51-P9 and SBC51-U version) available as TTL or RS232.
  • 64K ISP flash program memory (96KB in SBC51-P9).
  • On-chip data XRAM 768 bytes (only with double speed option) / 1024 bytes (only with 12X speed option)
  • On-board 124KB data memory, accessible as 2 banks of 62KB (in SBC51-A, SBC51-P, SBC51-U).
  • SBC51-P9 has on-board 128KBytes continuous data memory (possible due to MX architecture).
  • On-board PS/2 keyboard interface connector.
  • On-board parallel printer port with DB25 female connector.
  • 64KB I2C compatible EEPROM for non-volatile data storage.
  • I2C compatible RTC with suitable Battery for clock / calendar.
  • (Optional) Text LCD module 16 char X 1 row  or 16 char X 2 rows.
  • Unused chip-select signals available for external I/O expansion.
  • Suitable power supply included (requires 230VAC).
  • Data bus and other necessary control signals available on connector for expansion.
  • Unused (or optionally used) port pins available on connector.
  • Board size: 135 mm X 115 mm.
  • Optional add-on board  provides 8 bipolar analog inputs (12 bit resolution).

Accompanying CD includes PC software (runs on Windows95/98) to download program (Intel HEX format file) into on-chip or on-board program memory. (Download into on-chip program memory is possible only for SBC51-P and SBC51-U; download into on-board program memory is possible for all 3 models). Also includes several example programs, and code size limited evaluation versions of our software development tools such as C Compiler for 8051 .

SBC51 Model Selection Table:

SBC51 Model Name:

SBC51-A

SBC51-P

SBC51-P9

SBC51-U

Processor

AT89C52

P89C51RD2

P89C669

DS89C450

Operating Frequency

11.059 MHz

11.059 MHz

11.059 MHz

11.059 MHz

Speed

1X

2X

2X

Upto 12X

Program Memory

64K, ISP

64K, ISP

96K, ISP

64K, ISP

On-chip XData Memory

None

768 Bytes

768 Bytes

1024 Bytes

On-board Xdata Memory

124 KBytes

124 KBytes

128 KBytes

124 KBytes

Serial Ports

1

1

2

2

Price (INR)*

5900.00

5900.00

6100.00

6100.00

Price (USD)*

118.00

118.00

126.00

126.00

Price (EUR)*

106.20

106.20

113.40

113.40

SS-AI12 add-on board:

         Compatible with SBC51

         Mounts directly on SBC51

         Memory mapped interface

         8 bipolar analog inputs

         12 bit resolution

         2.5V precision reference

         Analog input range -5V to +5V

         Includes 8 TestPOTs, for simulating Analog Inputs

         TestPOTs generate 0 to 5V or -5V to +5V

         10 pin connector for external analog inputs

         Board size: 81mm X 78mm

         ADC driver routines (in C) available

 

 
Note: The Specification is subject to change without notice.

Hardware only

 Part number

MOQ

 One unit Price

Signal board computer

SBC

25

USD    $197.00

 

 

 

 

 

 

 

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