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CAT5409 PDF даташит

Спецификация CAT5409 изготовлена ​​​​«ON Semiconductor» и имеет функцию, называемую «Quad Digital Potentiometer».

Детали детали

Номер произв CAT5409
Описание Quad Digital Potentiometer
Производители ON Semiconductor
логотип ON Semiconductor логотип 

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CAT5409 Даташит, Описание, Даташиты
CAT5409
Quad Digital
Potentiometer (POT)
with 64 Taps
and I2C Interface
Description
The CAT5409 is four digital POTs integrated with control logic and
16 bytes of NVRAM memory.
A separate 6-bit control register (WCR) independently controls the
wiper tap position for each digital POT. Associated with each wiper
control register are four 6-bit non-volatile memory data registers (DR)
used for storing up to four wiper settings. Writing to the wiper control
register or any of the non-volatile data registers is via a I2C serial bus.
On power-up, the contents of the first data register (DR0) for each of
the four potentiometers is automatically loaded into its respective
wiper control register (WCR).
The Write Protection (WP) pin protects against inadvertent
programming of the data register.
The CAT5409 can be used as a potentiometer or as a two terminal,
variable resistor. It is intended for circuit level or system level
adjustments in a wide variety of applications.
Features
Four Linear Taper Digital Potentiometers
64 Resistor Taps per Potentiometer
End to End Resistance 2.5 kW, 10 kW, 50 kW or 100 kW
I2C Interface
Low Wiper Resistance, Typically 80 W
Four Non-volatile Wiper Settings for Each Potentiometer
Recall of Saved Wiper Settings at Power-up
2.5 to 6.0 Volt Operation
Standby Current less than 1 mA
1,000,000 Nonvolatile WRITE Cycles
100 Year Nonvolatile Memory Data Retention
24-lead SOIC and 24-lead TSSOP
Write Protection for Data Register
These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS
Compliant
http://onsemi.com
TSSOP24
Y SUFFIX
CASE 948AR
SOIC24
W SUFFIX
CASE 751BK
VCC
RL0
RH0
RW0
A2
WP
SDA
A1
RL1
RH1
RW1
GND
PIN CONNECTIONS
1
CAT5409
SOIC24 (W)
(Top View)
NC
RL3
RH3
RW3
A0
NC
A3
SCL
RL2
RH2
RW2
NC
SDA
A1
RL1
RH1
RW1
GND
NC
RW2
RH2
RL2
SCL
A3
1
CAT5409
TSSOP24 (Y)
(Top View)
WP
A2
RW0
RH0
RL0
VCC
NC
RL3
RH3
RW3
A0
NC
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
Semiconductor Components Industries, LLC, 2013
July, 2013 Rev. 15
1
Publication Order Number:
CAT5409/D









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CAT5409 Даташит, Описание, Даташиты
(SOIC24)
L3B
CAT5409WT
RRYMXXXX
CAT5409
MARKING DIAGRAMS
(TSSOP24)
RLB
CAT5409YT
3YMXXX
L = Assembly Location
3 = Lead Finish Matte-Tin
B = Product Revision (Fixed as “B”)
CAT = Fixed as “CAT”
5409W = Device Code
T = Temperature Range (I = Industrial)
= Dash
RR = Resistance
25 = 2.5 KW
10 = 10 KW
50 = 50 KW
00 = 100 KW
Y = Production Year (Last Digit)
M = Production Month (19, O, N, D)
XXXX = Last Four Digits of Assembly Lot Number
R = Resistance
1 = 2.5 KW
2 = 10 KW
4 = 50 KW
5 = 100 KW
L = Assembly Location
B = Product Revision (Fixed as “B”)
CAT5409Y = Device Code
T = Temperature Range (I = Industrial)
3 = Lead Finish Matte-Tin
Y = Production Year (Last Digit)
M = Production Month (19, O, N, D)
XXX = Last Three Digits of Assembly Lot Number
SCL
SDA
WP
AAAA0123
I2C BUS
INTERFACE
WIPER
CONTROL
REGISTERS
RH0 RH1 RH2 RH3
CONTROL
LOGIC
NONVOLATILE
DATA
REGISTERS
RL0 RL1 RL2 RL3
Figure 1. Functional Diagram
RW0
RW1
RW2
RW3
http://onsemi.com
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CAT5409 Даташит, Описание, Даташиты
CAT5409
PIN DESCRIPTIONS
Table 1. PIN DESCRIPTIONS
Pin#
(TSSOP)
Pin#
(SOIC)
Name
Function
19 1 VCC Supply Voltage
20 2 RL0 Low Reference Terminal
for Potentiometer 0
21 3 RH0 High Reference Terminal
for Potentiometer 0
22 4 RW0 Wiper Terminal for
Potentiometer 0
23 5 A2 Device Address
24 6 WP Write Protection
1 7 SDA Serial Data Input/Output
2 8 A1 Device Address
3 9 RL1 Low Reference Terminal
for Potentiometer 1
4
10
RH1
High Reference Terminal
for Potentiometer 1
5
11
RW1
Wiper Terminal for
Potentiometer 1
6 12 GND Ground
7 13 NC No Connect
8 14 RW2 Wiper Terminal for
Potentiometer 2
9 15 RH2 High Reference Terminal
for Potentiometer 2
10 16 RL2 Low Reference Terminal
for Potentiometer 2
11 17 SCL Bus Serial Clock
12 18 A3 Device Address
13 19 NC No Connect
14 20 A0 Device Address, LSB
15 21 RW3 Wiper Terminal for
Potentiometer 3
16 22 RH3 High Reference Terminal
for Potentiometer 3
17
23
RL3
Low Reference Terminal
for Potentiometer 3
18 24 NC No Connect
SCL: Serial Clock
The CAT5409 serial clock input pin is used to clock all
data transfers into or out of the device.
SDA: Serial Data
The CAT5409 bidirectional serial data pin is used to
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
These inputs set the device address when addressing
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.
RH, RL: Resistor End Points
The four sets of RH and RL pins are equivalent to the
terminal connections on a mechanical potentiometer.
RW: Wiper
The four RW pins are equivalent to the wiper terminal of
a mechanical potentiometer.
WP: Write Protect Input
The WP pin when tied low prevents non-volatile writes to
the data registers (change of wiper control register is
allowed) and when tied high or left floating normal
read/write operations are allowed. See Write Protection on
page 8 for more details.
DEVICE OPERATION
The CAT5409 is four resistor arrays integrated with I2C
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 (RH and RL). RH and RL are symmetrical and
may be interchanged. The tap positions between and at the
ends of the series resistors are connected to the output wiper
terminals (RW) by a CMOS transistor switch. Only one tap
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 I2C bus. Additional instructions allows data to be
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.
http://onsemi.com
3










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