Products > Integrated Circuits (ICs) > Communication & Networking ICs > TMPN3120FE3MG

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Network Controller & Processor ICs Neuron Chip w/ 2 KB EEPROM

  • Package/Case :
  • SOP-32
  • Product Categories :
  • Misc Communication
  • RoHs Status:
  • Lead free/RoHS Compliant
  • In-stock:
  • 250


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TMPN3120FE3MG Product Details

The TMPN3120FE3MG features extra single-chip memory in the form of a 2 Kbyte EEPROM, a 2 Kbyte SRAM, and a 16 Kbyte ROM.
Neuron Chips have all the built-in communications and control functions required to implement LONWORKS® nodes. These nodes may then be easily integrated into highly reliable distributed intelligent control networks.
The typical functions for this chip are described below.
● Main features of the 20 MHz Neuron Chip (compared with the TMPN3120E1M)
• Increased communication speed
- The maximum transmission speed has been increased twofold: 1.25 Mbps → 2.5 Mbps (This value applies to Single-Ended          Mode only.)
• Shortened response time
- The amount of time required from I/O input to I/O output has been greatly reduced.
- Maximum speed: 7 ms → 3 to 4 ms
• Increased I/O object speed
- The execution time for all objects has been halved.
- Example) Serial I/O 9600 bps, Parallel I/O 1.2 µs/byte
● I/O functions
• Eleven programmable I/O pins
• Two programmable 16-bit timers and counters built in
• More than thirty different types of I/O functions to handle a wide range of input and output
• ROM firmware image containing preprogrammed I/O drivers, greatly simplifying application programs
● Network functions
• Two CPUs for communication protocol processing built in The communications and application CPUs execute in parallel.
• Equipped with a built-in LonTalk protocol supporting all seven levels of the ISO OSI reference model
• The ROM firmware image contains a complete network operating system, greatly simplifying application programs.
• Built-in twisted-pair wire transceiver
• Equipped with communications modes and communication speeds to support various types of external transceivers
• Communication port transceiver modes and logical addresses are stored within the EEPROM. Can be amended via the network.
● Other functions
• Application programs are also stored within the EEPROM. Can be updated by downloading over the network.
• Built-in watchdog timer
• Each chip has a unique ID number. 
- Effective during the logical installation of networks
• Low electrical consumption mode supported through a sleep mode
• Reset time 
- Prolongs the power-on reset time for at least 50 ms and keeps the operation stable during that time.
• High-impedance communication port (CP0 to CP3) when powered down
- The communication port pins (CP0 to CP3) attain high impedance when the Neuron Chip is powered down.
- This feature eliminates the need for an external relay.
• Built-in low-voltage detection circuit
- Prevents incorrect operations and writing errors in the EEPROM during drops in power voltage.
- An external LVD must be used to assert reset at a power supply voltage below 4.5 V if the Neuron Chip is operated at 20 MHz.
• The package is SOP32-P-525-1.27 (lead-free type).


TMPN3120FE3MG Pinout
(Picture: Pinout)

TMPN3120FE3MG Block Diagram
(Picture: Diagram)

Technical Parameters

  • Number of bits
  • 8bit
  • Series
  • Neuron
  • Package
  • SOP
  • Architecture
  • CISC
  • Case/Package
  • SOP
  • RoHS
  • Compliant

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Toshiba is Japan's largest semiconductor manufacturer and the second largest integrated motor manufacturer under the Mitsui Group. Founded in July 1875, the company was formerly known as Tokyo Shibaura Electric Co., Ltd., and was merged by Tokyo Electric Co., Ltd. and Shibaura Manufacturing Co., Ltd...
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