CAT5409YI-50-T2 ON Semiconductor, CAT5409YI-50-T2 Datasheet - Page 4

• Manufacturer Part Number: CAT5409YI-50-T2
• Description: IC POT DPP QUAD 64TAP I2C 24TSSO
• Manufacturer: ON Semiconductor

Specifications of CAT5409YI-50-T2

• Taps: 64
• Resistance (ohms): 50K
• Number Of Circuits: 4
• Temperature Coefficient: 300 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.5 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP
• Resistance In Ohms: 50K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pin Descriptions
SCL: Serial Clock
data transfers into or out of the device.
SDA: Serial Data
transfer data into and out of the device. The SDA pin is an
open drain output and can be wire−Ored with the other open
drain or open collector outputs.
A0, A1, A2, A3: Device Address Inputs
multiple devices. A total of sixteen devices can be addressed
on a single bus. A match in the slave address must be made
with the address input in order to initiate communication
with the CAT5409.
R
terminal connections on a mechanical potentiometer.
R
a mechanical potentiometer.
WP: Write Protect Input
the data registers (change of wiper control register is
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. The minimum DC input voltage is –0.5 V. During transitions, inputs may undershoot to –2.0 V for periods of less than 20 ns. Maximum DC
2. Latch−up protection is provided for stresses up to 100 mA on address and data pins from –1 V to V
Table 2. ABSOLUTE MAXIMUM RATINGS
Table 3. RECOMMENDED OPERATING CONDITIONS
H
W
Temperature Under Bias
Storage Temperature
Voltage on Any Pin with Respect to V
V
Package Power Dissipation Capability (T
Lead Soldering Temperature (10 s)
Wiper Current
V
Industrial Temperature
The CAT5409 serial clock input pin is used to clock all
The CAT5409 bidirectional serial data pin is used to
These inputs set the device address when addressing
The four sets of R
The four R
The WP pin when tied low prevents non−volatile writes to
voltage on output pins is V
, R
CC
CC
: Wiper
with Respect to Ground
L
: Resistor End Points
W
pins are equivalent to the wiper terminal of
H
and R
CC
+0.5 V, which may overshoot to V
L
pins are equivalent to the
SS
Parameters
Parameters
(Notes 1, 2)
A
= 25°C)
http://onsemi.com
CC
4
+2.0 V for periods of less than 20 ns.
allowed) and when tied high or left floating normal
read/write operations are allowed. See Write Protection on
page 9 for more details.
Device Operation
serial interface logic, four 6−bit wiper control registers and
sixteen 6−bit, non−volatile memory data registers. Each
resistor array contains 63 separate resistive elements
connected in series. The physical ends of each array are
equivalent to the fixed terminals of a mechanical
potentiometer (R
may be interchanged. The tap positions between and at the
ends of the series resistors are connected to the output wiper
terminals (R
point for each potentiometer is connected to its wiper
terminal at a time and is determined by the value of the wiper
control register. Data can be read or written to the wiper
control registers or the non−volatile memory data registers
via the I
transferred between the wiper control registers and each
respective potentiometer’s non−volatile data registers. Also,
the device can be instructed to operate in an “increment/
decrement” mode.
The CAT5409 is four resistor arrays integrated with I
2
C bus. Additional instructions allows data to be
W
) by a CMOS transistor switch. Only one tap
H
and R
−2.0 to +V
L
). R
CC
−55 to +125
−65 to +150
−2.0 to +7.0
−40 to +85
+2.5 to +6
Ratings
+1 V.
Ratings
H
300
±12
1.0
and R
CC
+ 2.0
L
are symmetrical and
Units
Units
mA
°C
°C
°C
°C
W
V
V
V
2
C