cat5401 Catalyst Semiconductor, cat5401 Datasheet
cat5401
Available stocks
Related parts for cat5401
cat5401 Summary of contents
Page 1
... 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. The CAT5401 can be used as a potentiometer two terminal, variable resistor intended for circuit level or system level adjustments in a wide variety of applications. ...
Page 2
... WP ¯¯¯¯¯ : Hold HOLD ¯¯¯¯¯ pin is used to pause transmission to the CAT5401 while in the middle of a serial sequence without The HOLD having to retransmit entire sequence at a later time. To pause, HOLD SO pin high impedance state during the time the part is paused, and transitions on the SI pins will be ignored ...
Page 3
... SERIAL BUS PROTOCOL The CAT5041 supports the SPI bus data transmission protocol. The synchronous Serial Peripheral Interface (SPI) helps the CAT5401 to interface directly with many of today's popular microcontrollers. CAT5041 contains an 8-bit instruction register. The instruction set and the operation codes are detailed in the instruction set table 3 ...
Page 4
... CAT5401 (1) Absolute Maximum Ratings Parameters Temperature Under Bias Storage Temperature Voltage on Any Pin with Respect with Respect to Ground CC Package Power Dissipation Capability (T Lead Soldering Temperature (10s) Wiper Current Recommended Operating Conditions Parameters V CC Industrial Temperature Potentiometer Characteristics Over recommended operating conditions unless otherwise stated. ...
Page 5
... V = GND Open GND GND to V OUT CC = 3.0V 25º 1.0MHz ¯¯¯ ) Test Conditions C = 50pF L 5 CAT5401 Min Max (unless otherwise noted). CC Conditions Max OUT V ...
Page 6
... CAT5401 (1)(2) Power Up Timing Symbol Parameter t Power-up to Read Operation PUR t Power-up to Write Operation PUW Write Cycle Limits Symbol Parameter t Write Cycle Time WR Reliability Characteristics Symbol Parameter (3) N Endurance END (3) T Data Retention DR (3) V ESD Susceptibility ZAP (3) I Latch-Up LTH Figure 1. Synchronous Data Timing ...
Page 7
... The two least significant bits in the slave address byte A0, are the internal slave address and must match the physical device address which is defined by the state of the input pins for the CAT5401 to successfully continue the command sequence. Only the device which slave address matches the incoming device address sent by the master executes the instruction ...
Page 8
... The Wiper Control Register is a volatile register that loses its contents when the CAT5401 is powered- down. Although the register is automatically loaded with the value in DR0 upon power-up, this may be different from the value present at power-down. ...
Page 9
... Four instructions require a two-byte sequence to complete, as illustrated in Figure 3. These instructions transfer data between the host/processor and the CAT5401; either between the host and one of the data registers or directly between the host and the Wiper Control Register. These instructions are: — XFR Data Register to Wiper Control Register This transfers the contents of one specified Data Register to the associated Wiper Control Register ...
Page 10
... CAT5401 Figure 6. Increment/Decrement Timing Limits INC/DEC Command Issued SCK INSTRUCTION FORMAT Read Wiper Control Register (WCR) DEVICE ADDRESSES ¯¯¯ CS Write Wiper Control Register (WCR) DEVICE ADDRESSES ¯¯¯ CS Read Data Register (DR) ...
Page 11
... INSTRUCTION INSTRUCTION I/D 11 CAT5401 ¯¯¯ CS High Voltage ¯¯¯ CS Write Cycle High Voltage ¯¯¯ CS Write Cycle ¯¯¯ CS DATA I I/D I/D ¯¯¯ CS ¯¯¯ goes high. ...
Page 12
... CAT5401 PACKAGE OUTLINES (1)(2) SOIC 24-Lead 300mils ( PIN#1 IDENTIFICATION TOP VIEW D A SIDE VIEW 2HFor current Tape and Reel information, download the PDF file from: Notes: (1) All dimensions are in millimeters, angles in degrees. (2) Complies with JEDEC standard MO-013. Doc. No. MD-2012 Rev. G SYMBOL ...
Page 13
... Tape and Reel information, download the PDF file from: Notes: (1) All dimensions are in millimeters, angles in degrees. (2) Complies with JEDEC standard MO-153. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice θ1 13 CAT5401 SYMBOL MIN NOM MAX A 1.20 A1 0.05 0.15 A2 0.80 1. ...
Page 14
... W: SOIC Y: TSSOP Company ID Product Number 5401 Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The device used in the above example is a CAT5401WI-00-T1 (SOIC, Industrial Temperature, 100kΩ, Tape & Reel). (3) The lead finish is Matte-Tin. Ordering Part Number CAT5401WI-25 CAT5401WI-10 CAT5401WI-50 CAT5401WI-00 CAT5401YI-25 ...
Page 15
... Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where personal injury or death may occur ...