DS2490
DS2490 is USB to 1-Wire Bridge Chip manufactured by Maxim Integrated.
19-4993; 10/09
.maxim-ic.
Features
- municates at regular and overdrive 1Wire® speeds
- Supports stiff 5V pullup for EEPROM, sensors, and crypto i Button®
- Slew rate controlled 1-Wire timing and active pullup to acmodate long 1-Wire network lines and reduce radiation
- Programmable 1-Wire timing and driver characteristics acmodate a wide range of 1-Wire network configurations
- Low- to high-level mand types, including macros, for generating 1-Wire munication
- Crystal oscillator timebase provides precision timed 1-Wire waveforms
- High-speed 12Mbps Universal Serial Bus (USB) interface
- Integrated USB-pliant transceiver
- Supports USB remote wake-up from a 1-Wire device event to resume a suspended host system
- 0o C to +70o C operating temperature range
DS2490 USB to 1-Wire Bridge Chip
PIN ASSIGNMENT
PMOD NC NC NC VB
SUSO DD+ NC
1-WIRE
1 2 3 4 5 6 7 8
9 10
24 VD 23 NC 22 NC
21 NC 20 XO 19 XI 18 NC 17 VD2 16 NC 15 NC
14 NC 13 NC
24-Pin SO Top View (300-mil)
ORDERING INFORMATION
PART NUMBER
TEMP RANGE
PIN-PACKAGE
DS2490S+
0o C to +70o C 24 SO (300...
