DS1923-F5 Maxim Integrated Products, DS1923-F5 Datasheet - Page 48

• Manufacturer Part Number: DS1923-F5
• Description: Board Mount Temperature Sensors
• Manufacturer: Maxim Integrated Products

Specifications of DS1923-F5

• Full Temp Accuracy: +/- 0.5 C
• Package / Case: F5 MicroCan
• Digital Output - Bus Interface: Serial (1-Wire)
• Digital Output - Number Of Bits: 12 bit
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 20 C
• Output Type: Digital
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Hygrochron Temperature/Humidity Logger
iButton with 8KB Data-Log Memory
Step 2: Write the setup data to register page 1.
During the setup, the device needs to learn the follow-
ing information:
• Time and Date
• Sample Rate
• Alarm Thresholds
48
ADDRESS
020Ah
020Bh
020Ch
020Dh
0200h
0201h
0202h
0203h
0204h
0205h
0206h
0207h
0208h
0209h
020Eh
020Fh
0210h
0211h
0212h
0213h
0214h
0215h
0216h
0217h
0218h
______________________________________________________________________________________
DATA
0Ah
7Ah
C3h
5Ah
00h
30h
15h
15h
05h
04h
00h
66h
6Fh
9Eh
FFh
FFh
FFh
FFh
03h
FFh
01h
FFh
FFh
00h
00h
15:30:00 hours
15th of May in 2004
Every 10 minutes (EHSS = 0)
10°C Low
20°C High
40%RH Low
70%RH High
(Don’t care)
Enable high and low alarm
Enable high and low alarm
On (enabled), EHSS = 0 (low sample rate)
Normal start; no rollover; 8-bit logging
(Don’t care)
90 minutes
EXAMPLE VALUES
• Alarm Controls (Response to Conditional Search ROM)
• General Mission Parameters (e.g., Channels to Log
• Mission Start Delay
The following data sets up the DS1923 for a mission
that logs temperature and humidity using 8-bit format
for both.
and Logging Format, Rollover, Start Mode)
Time
Date
Sample rate
Temperature Alarm Thresholds
Humidity Alarm Threshold, no software
correction used
Clock through read-only registers
Temperature Alarm Control
Humidity Alarm Control
RTC Oscillator Control, sample rate selection
General Mission Control
Clock through read-only registers
Mission Start Delay
FUNCTION