| Key Specifications: iButton Products |
| Part Number |
Overview |
Memory Type |
Memory Size |
Data Logger Type |
Data Logger Size |
Data Logger Sample Rate |
Data Logger Histogram |
Data Logger Accuracy |
Data Logger Resolution |
Data Logger Measuremt. Range |
Security Features |
Prog. Alarm |
Unique Ware |
Real Time Clock |
Smallest Available Pckg. (mm2) |
| max w/pins |
| DS1923 |
 Temperature/Humidity Sensor iButton |
NV SRAM |
512 Bytes |
|
8192 Byte |
1s to 273hrs |
- |
Correctible to ±0.5°C |
Selectable 8-bit (0.5°C) or 11-bit (0.0625°C) |
| -20°C to +85°C | | 0 to 100%RH |
|
Password Protected |
| Humidity High/Low | | Temperature High/Low |
|
No |
Yes |
301 |
| DS1922L |
 Temperature Sensor iButton |
512 Bytes |
Temperature |
8192 Byte |
1s to 273hrs |
- |
Correctible to ±0.5°C |
Selectable 8-bit (0.5°C) or 11-bit (0.0625°C) |
-40°C to +85°C |
Password Protected |
Temperature High/Low |
| DS1922T |
 Temperature Sensor iButton |
512 Bytes |
Temperature |
8192 Byte |
1s to 273hrs |
- |
Correctible to ±0.5°C |
Selectable 8-bit (0.5°C) or 11-bit (0.0625°C) |
0°C to +125°C |
Password Protected |
Temperature High/Low |
| DS1921G |
 Temperature Sensor iButton |
4Kbits |
Temperature |
2048 Byte |
1min to 255min |
63-bin |
±1°C |
0.5°C |
-40°C to +85°C |
- |
Temperature High/Low |
|
See All iButton Products (26)
|
| Key Specifications: Timekeeping & Real-Time Clocks |
| Part Number |
Functions |
Date/ Time Format |
Interface |
VSUPPLY (V) |
Time Keeping Current (nA) |
CL (pF) |
Memory Type |
Memory Size (Bytes) |
Time of Day Alarms |
| hh = sec/100 |
typ |
| DS2422 |
Time/Temperature/Event Recorder |
YY-MM-DD/ HH:MM:SS |
1-Wire |
|
1200 |
12.5 |
NV SRAM |
512 |
0 |
| DS1682 |
Time/Temperature/Event Recorder |
Binary |
I2C |
|
- |
- |
EEPROM |
10 |
1 |
| DS1678 |
- |
YY-MM-DD/ HH:MM:SS |
I2C |
5 |
300 |
12.5 |
None |
- |
1 |
|
See All Timekeeping & Real-Time Clocks (80)
|