CAT5221W-10 ON Semiconductor, CAT5221W-10 Datasheet

no-image

CAT5221W-10

Manufacturer Part Number
CAT5221W-10
Description
Manufacturer
ON Semiconductor
Datasheet

Specifications of CAT5221W-10

Number Of Elements
2
# Of Taps
64
Resistance (max)
10KOhm
Power Supply Requirement
Single
Interface Type
Serial (2-Wire/I2C)
Single Supply Voltage (typ)
3.3/5V
Dual Supply Voltage (typ)
Not RequiredV
Single Supply Voltage (min)
2.5V
Single Supply Voltage (max)
6V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
20
Lead Free Status / RoHS Status
Compliant
The CAT5221 is two Digitally Programmable
Potentiometers (DPPs™) integrated with control logic
and 16 bytes of NVRAM memory. Each DPP consists of
a series of 63 resistive elements connected between two
externally accessible end points. The tap points between
each resistive element are connected to the wiper outputs
with CMOS switches. A separate 6-bit control register
(WCR) independently controls the wiper tap switches for
each DPP. 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
© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
R W0
R W1
GND
SDA
R H0
RH 1
R L0
R L1
A 0
A 2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V CC
NC
NC
NC
A 1
A 3
SCL
NC
NC
NC
SDA
SCL
A0
A1
A2
A3
1
registers is via a 2-wire serial bus (I
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 CAT5221 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. It is available in the 0 C to 70 C commercial
and -40 C to 85 C industrial operating temperature
ranges and offered in a 20-lead SOIC package.
2-WIRE BUS
INTERFACE
CONTROL
LOGIC
NONVOLATILE
REGISTERS
REGISTERS
CONTROL
WIPER
DATA
R
R
H0
L0
R
R
2
H1
L1
C-like). On power-
Document No. 2113, Rev. G
TM
R
R
W0
W1

Related parts for CAT5221W-10

CAT5221W-10 Summary of contents

Page 1

The CAT5221 is two Digitally Programmable Potentiometers (DPPs™) integrated with control logic and 16 bytes of NVRAM memory. Each DPP consists of a series of 63 resistive elements connected between two externally accessible end points. The tap points between each ...

Page 2

R Wiper Terminal for Potentiometer Low Reference Terminal for Potentiometer High Reference Terminal for Potentiometer Device Address, LSB 5 A2 Device Address 6 R Wiper Terminal for ...

Page 3

Temperature Under Bias .................. - +125 C Storage Temperature ........................ - +150 C Voltage on any Pin with (1) Respect toV .................... -2. with Respect to Ground ................ -2.0V to +7.0V CC ...

Page 4

Over recommended operating conditions unless otherwise stated. I Power Supply Current CC I Standby Current ( Input Leakage Current LI I Output Leakage Current LO V Input Low Voltage IL V Input High Voltage IH V Output ...

Page 5

Over recommended operating conditions unless otherwise stated. t Write Cycle Time WR The write cycle is the time from a valid stop condition of a write sequence to the end of the internal program/erase cycle. During the write cycle, the ...

Page 6

The following defines the features of the 2-wire bus protocol: (1) Data transfer may be initiated only when the bus is not busy. (2) During a data transfer, the data line must remain stable whenever the clock line is high. ...

Page 7

In the Write mode, the Master device sends the START condition and the slave address information to the Slave device. After the Slave generates an acknowledge, the Master sends the instruction byte that defines the requested operation of CAT5221. The ...

Page 8

The first byte sent to the CAT5221 from the master/ processor is called the Slave/DPP Address Byte. The most significant four bits of the slave address are a device type identifier. These bits for the CAT5221 are fixed at 0101[B] ...

Page 9

The CAT5221 contains two 6-bit Wiper Control Registers, one for each potentiometer. The Wiper Control Register output is decoded to select one of 64 switches along its resistor array. The contents of the WCR can be altered in four ways: ...

Page 10

WCR and one of the Data Registers. The WCR controls the position of the wiper. The response of the wiper to this action will be delayed transfer from the WCR (current wiper ...

Page 11

INC/DEC Command Issued SCL SDA R W Voltage Out 11 t WRID Document No. 2113, Rev. G ...

Page 12

Notes: (1) Any write or transfer to the Non-volatile Data Registers is followed by a high voltage cycle after a STOP has been issued. Document No. 2113, Rev. G • • • 12 ...

Page 13

Notes: (1) The device used in the above example is a CAT5221JI-10-TE13 (SOIC, Industrial Temperature, 10kohm, Tape & Reel) Package J: SOIC U: TSSOP W: SOIC (Lead free, Halogen free) Y: TSSOP (Lead free, Halogen free) 13 Document ...

Page 14

BSC 0 —8 Document No. 2113, Rev. G 0.2914 (7.40) 0.394 (10.00) 0.2992 (7.60) 0.419 (10.65) 0.5985 (15.20) 0.6141 (15.60) 0.0926 (2.35) 0.1043 (2.65) 0.0040 (0.10) 0.013 (0.33) 0.0118 (0.30) 0.020 (0.51) 0.010 (0.25 0.029 (0.75) ...

Page 15

PIN #1 IDENT. 1.1 MAX TYP 0.1 C ALL LEAD TIPS -C- 0.65 TYP (1) Lead coplanarity is 0.004" (0.102mm) maximum. (1.78 TYP) 0.42 TYP 0.2 ...

Page 16

E 10/1/2003 F 3/10/2004 G Copyrights, Trademarks and Patents Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: DPP ™ DPPs ™ ™ trademark of Philips Corporation Catalyst Semiconductor ...

Related keywords