DS1922T-F5# Maxim Integrated Products, DS1922T-F5# Datasheet - Page 48

• Manufacturer Part Number: DS1922T-F5#
• Description: IBUTTON TEMP LOGGER
• Manufacturer: Maxim Integrated Products
• Series: iButton®r

Specifications of DS1922T-F5#

• Rohs Information: IButton RoHS Compliance Plan
• Memory Size: 512B
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Temperature 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
FCh
C1h
5Ah
00h
30h
15h
01h
04h
02h
00h
52h
66h
00h
FFh
FFh
FFh
FFh
FFh
02h
01h
FFh
FFh
00h
00h
15:30:00 hours
1st of April in 2002
Every 10 minutes (EHSS = 0)
0°C low
10°C high
(Don’t care)
(Don’t care)
Enable high alarm
Disabled
On (enabled), EHSS = 0 (low sample rate)
Normal start; no rollover; 8-bit temperature log
(Don’t care)
90 minutes
EXAMPLE VALUES
• Alarm Controls (Response to Conditional Search)
• General Mission Parameters (e.g., Channels to Log
• Mission Start Delay
The following data sets up the DS1922L for a mission
that logs temperature using 8-bit format.
and Logging Format, Rollover, Start Mode)
Time
Date
Sample rate
Temperature Alarm Thresholds
(Not applicable with DS1922L/DS1922T)
Clock through read-only registers
Temperature Alarm Control
(Not applicable with DS1922L/DS1922T)
RTC Oscillator Control, sample rate selection
General Mission Control
Clock through read-only registers
Mission Start Delay
FUNCTION