BAE0911 - Programmable 22 i/o 1-Wire slave device

Be the first to review this product

10 in stock

Quick Overview

BAE0911 - Programmable 22 i/o 1-Wire slave device

BAE0911 - Programmable 22 i/o 1-Wire slave device

Double click on above image to view full picture

Zoom Out
Zoom In

More Views



This versatile 28-pin SOIC chip offers a 1-wire slave with many facilities allowing the use of the 1-wire bus to control a variety of peripherals. It is fully supported by the open source 1-wire file system (OWFS) software. 

Main Features

  • 22 i/o pins allows mixed functions selectable among the pins
  • 22 pio TTL digital input/output with changed latch bit
  • 6 up/down 32bit encoders
  • Four 16 bit PWM (pulse width modulation) from 0.1Hz to 10MHz
  • Four 16 bit capture input shared with PWM
  • 16 ADC inputs at 10 bit resolution (0 to 5V range)
  • 6 interrupt based 32bit counters (up to 5KHz)
  • 12 additional 32bit counters (up to 100Hz)
  • One analog comparator with output on compare

Extended connectivity

  • One buffered TTL serial port (RX/TX) baud rate from 50 to 1000.000 bauds
  • I²C master interface up to 1Mbit/s
  • SPI master interface (aka four wires) up to 1MHz
  • Standard speed 1-Wire slave interface with unique ROM serial number

Advanced features

  • Firmware upgradable via 1-wire® bus.
  • The chip firmware is contained in FLASH and can be upgraded directly from 1-wire bus.
  • Automation Engine: allows to embed Basic-like programs for autonomous behavior
  • Calibrated 32 bit counter clock (typical deviation 0.5%)
  • Integrated watchdog monitoring with automatic reset
  • All PIO has configurable internal pull-up resistor (PIO0..PIO7 have also pull-down)
  • 6 fast counters are configurable on rising/falling edge
  • 12 slow counters on falling edge only
  • 32Kbit of user flash storage (8 pages of 512 bytes)
  • 92 bytes of user register
  • 4x 92 bytes of RAM dedicated for Automation user programs
  • ADC is working in continuous conversion mode (no start conversion command, no delays)
  • 32 distinct countdown registers for timer behavior in AE
  • SDcard support up to 2GB for direct access to 512bytes sectors

Compatibility with 1-wire protocol

  • Standard speed operation: protocol implemented with low latency interrupts in background.
  • Supports every standard ROM commands: read rom, match rom, search rom, skip rom, resume rom and conditional search
  • Unique serial number
  • Family code 0xFC: with extended identification commands: read_type & read_version.
  • Control functions: see FUNCTION COMMANDS page in the manual.

Physical characteristics

  • Single chip microcontroller based solution in an 28-pin SOIC.
  • 5.0V supply voltage, 10mA typical consumption
  • 40MHz operation
  • Based on Freescale MC9S08SH16CWL microcontroller


Additional Information

Delivery Normally delivered from stock
SKU hc00346
Technical Information

Technical manual available here.

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.