DS1615 Datasheet, PDF (1/24 Pages) Dallas Semiconductor – Temperature Recorder

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FEATURES
Digital thermometer measures temperature
-40°C to +85°C in 0.5°C increments (-40°F
to +183.2°F in 0.9°F increments)
Digital thermometer provides ±2°C accuracy
Real Time Clock/Calendar in BCD format
counts seconds, minutes, hours, date, month,
day of the week, and year with leap year
compensation (Y2K compatible)
Automatically wakes up and measures
temperature at user-programmable intervals
from 1 to 255 minutes
Logs up to 2048 consecutive temperature
measurements in read-only nonvolatile
memory
Records long-term temperature histogram in
63 bins with 2.0°C resolution
Programmable temperature-high and
temperature-low alarm trip points
Two serial interface options: synchronous and
asynchronous
- 3-wire synchronous serial interface
- Asynchronous serial interface compatible
with standard UARTs
Memory partitioned into 32-byte pages for
packetizing data
On-chip 16-bit CRC generator to safeguard
data read operations in asynchronous
communications mode
Unique, factory lasered and tested 64-bit
serial number
DS1615
Temperature Recorder
PIN ASSIGNMENT
VBAT
1
X1 2
X2 3
NC 4
INSPEC 5
OUTSPEC 6
INT 7
GND 8
16 VCC
15 COMSEL
14 RX
13 TX
12 SCLK
11 I/O
10 RST
9 ST
DS1615 16-Pin DIP
DS1615S 16-Pin SOIC (300 mil)
Top View
BUMP 5
BUMP 1
BUMP 21
BUMP 17
DS1615X Flip Chip Package
Bottom View
PIN DESCRIPTION
V_bat
- Battery Supply
X1
- Crystal Input
X2
- Crystal Output
NC
- No Connect
INSPEC
- In-specification Output
OUTSPEC - Out-of-specification Output
INT
GND
- Interrupt Output
- Ground
ST
- Start/Status Input
RST
I/O
SCLK
TX
RX
COMSEL
V_CC
- 3-wire Reset Input
- 3-wire Input/Output
- 3-wire Clock Input
- Transmit Output
- Receive Input
- Communication Select
- +5V Supply
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