DS1624
ORDERING INFORMATION
ORDERING
INFORMATION
DS1624+
PACKAGE
MARKING
DS1624
DESCRIPTION
DS1624 in Lead-Free 300 mil 8-pin DIP
DS1624 in Lead-Free 208 mil 8-pin SO
DS1624 in Lead-Free 208 mil 8-pin SO, 2000 Piece Tape-
and-Reel
DS1624S+
DS1624S+T&R
DS1624S
DS1624S
A “+” symbol will also be marked on the package near the Pin 1 indicator.
DETAILED PIN DESCRIPTION Table 1
PIN
1
2
3
4
SYMBOL
SDA
SCL
NC
DESCRIPTION
Data input/output pin for 2-wire serial communication port.
Clock input/output pin for 2-wire serial communication port.
No connect. No Internal Connection.
Ground pin.
GND
A2
5
Address input pin.
6
A1
Address input pin.
7
A0
Address input pin.
8
VDD
Supply Voltage 2.7V to 5.5V input power pin.
OVERVIEW
A block diagram of the DS1624 is shown in Figure 1. The DS1624 consists of two separate functional
units: 1) a 256–byte nonvolatile E2 memory, and 2) a direct–to–digital temperature sensor.
The nonvolatile memory is made up of 256 bytes of E2 memory. This memory may be used to store any
type of information the user wishes; for example, frequency compensation coefficients may be placed in
this memory to allow for compensation of measured frequency depending upon the temperature at which
the measurement is made. These memory locations are accessed through the 2–wire serial bus.
The direct to digital temperature sensor allows the DS1624 to measure the ambient temperature and
report the temperature value in a 13–bit word, with 0.03125°C resolution. The temperature sensor and its
related registers are accessed through the 2–wire serial interface.
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
