Analog Devices / Maxim Integrated DS2485Q+U Advanced 1-Wire Master with Memory
Analog Devices Inc. DS2485Q+U Advanced 1-Wire Master with Memory performs protocol conversion between the I2C master and any attached 1-Wire slaves. For 1-wire line driving, internal user-adjustable timers relieve the system host processor from generating time-critical 1-Wire waveforms. This supports standard and overdrives 1-Wire communication speeds. The 1-Wire master has selectable active or passive 1-Wire pullup. Strong pullup features support 1-Wire power delivery for 1-Wire devices that require this for EEPROMs and cryptographic computations.
Features
- I2C communication, up to 1MHz
- 1-wire standard and overdrive timing communication speeds
- 1-wire command scripting capability
- Adjustable 1-wire timing for tRSTL, tMSI, tMSP, tRSTH, tWOL, tW1L, tMSR, tREC, RPUP, and PDSLEW
- 0.75Kb of EEPROM for user data
- One open-drain GPIO pin
- Large 1-wire block buffer (126 bytes) for efficient data transfer
- Operating range 2.97V to 3.63V, -40°C to +85°C
- 3mm x 3mm, 6-pin TDFN-EP package
Applications
- Medical instruments
- Industrial sensors and tools
- Limited-use consumables
- Printer cartridge identification
Typical Application Circuit
Evaluation Kit
Analog Devices / Maxim Integrated DS2485EVKIT# Evaluation Kit
Provides the hardware and software necessary to evaluate the DS2485.
Opublikowano: 2021-05-25
| Zaktualizowano: 2023-04-13