DS1615
Temperature Recorder
www.dalsemi.com
FEATURES
Digital thermometer measures temperature
-40掳C to +85掳C in 0.5掳C increments (-40掳F
to +183.2掳F in 0.9掳F increments)
Digital thermometer provides
卤2掳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掳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
PIN ASSIGNMENT
V
BAT
X1
X2
NC
INSPEC
OUTSPEC
INT
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
COMSEL
RX
TX
SCLK
I/O
RST
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
X1
X2
NC
INSPEC
OUTSPEC
INT
GND
ST
RST
I/O
SCLK
TX
RX
COMSEL
V
CC
- Battery Supply
- Crystal Input
- Crystal Output
- No Connect
- In-specification Output
- Out-of-specification Output
- Interrupt Output
- Ground
- Start/Status Input
- 3-wire Reset Input
- 3-wire Input/Output
- 3-wire Clock Input
- Transmit Output
- Receive Input
- Communication Select
- +5V Supply
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