DS1615 Maxim Integrated Products, DS1615 Datasheet - Page 19

• Manufacturer Part Number: DS1615
• Description: IC RECORDER TEMP 5V 16-DIP
• Manufacturer: Maxim Integrated Products
• Type: Temperature Recorderr

Specifications of DS1615

• Memory Size: 32B
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: 3-Wire Serial
• Voltage - Supply: 4 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

1. Write Byte (22h)
Host Transmit:
DS1615 Response: None
Note that good programming practice insists that the Clear Memory command should be issued whenever
the DS1615 is programmed to begin a new datalogging mission.
2. Read Page (33h)
Host Transmit:
DS1615 Response (Host Receives):
Where xxx represents the last register of the page that has been accessed.
When in asynchronous mode, the TX pin becomes inactive after the last register in the page and the CRC
have been transmitted. In synchronous mode, the DS1615 will continue to transmit data as long as clocks
are presented to the serial interface. If clocks are presented after the final data bit of the last register in
the page, the DS1615 will wrap-around to the first register in the page and sequentially transmit data as
long as the clocks continue.
3. Specification Test (44h)
Host Transmit:
DS1615 Response (Host Receives): Either the
Each pulse will be 62.5 ms in duration and will start every half second.
This command instructs the DS1615 to generate four low pulses on either the
driver pins. The pin that is driven is dependent upon whether any data samples fell outside of the High
Temperature and Low Temperature Threshold boundaries. These pins, when used to drive LEDs, can be
used to provide a quick visual confirmation as to whether the temperature remained within the user-
defined limits.
0
register a[15..0]
↓
register xxxh
a15
D7
D7
D7
D7
d7
a7
0
0
0
1
a14
D6
D6
D6
D6
d6
a6
a6
0
0
0
a13
D5
D5
D5
D5
d5
a5
a5
1
1
0
a12
D4
D4
D4
D4
d4
a4
a4
1
0
INSPEC
19 of 24
0
or
a11
D3
D3
D3
D3
a3
a3
d3
0
0
OUTSPEC
1
a10
pin will generate four low pulses.
D2
D2
D2
D2
a2
d2
a2
0
0
INSPEC
0
D1
D1
D1
D1
a9
a1
d1
a1
1
1
or
OUTSPEC
0
D0
D0
D0
D0
d0
a8
a0
a0
1
0
LED