cat5241 Catalyst Semiconductor, cat5241 Datasheet
cat5241
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cat5241 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 (WCR). The CAT5241 can be used as a potentiometer two terminal, variable resistor intended for circuit level or system level adjustments in a wide variety of applications. ...
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... Supply Voltage CC PIN DESCRIPTION SCL: Serial Clock The CAT5241 serial clock input pin is used to clock all data transfers into or out of the device. SDA: Serial Data The CAT5241 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-or'd with the other open drain or open collector outputs ...
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... W CC Pin ( W(n)(actual) (n)(expected W(n+1) W(n)+LSB (4) POT (4) (4) ( 50kΩ POT +2.0V for periods of less than 20ns CAT5241 Units °C ° °C mA Units °C Min Typ Max 100 50 10 2.5 ± ±6 =3V 300 = 5V 80 150 GND ...
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... CAT5241 D.C. OPERATING CHARACTERISTICS Over recommended operating conditions unless otherwise stated. Symbol Parameter I Power Supply Current CC I Standby Current (V = 5.0V Input Leakage Current LI I Output Leakage Current LO V Input Low Voltage IL V Input High Voltage IH V Output Low Voltage (V OL1 CC CAPACITANCE T = 25° ...
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... JEDEC Standard 17 is stable until the specified operation can be initiated HIGH LOW t LOW t HD:DAT t HD:STA t SU:DAT ACK t WR STOP CONDITION 5 CAT5241 Min Typ Max Units 5 ms Min Typ Max Units 1,000,000 Cycles/Byte 100 Years 2000 Volts 100 ...
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... When the CAT5241 READ mode it transmits 8 bits of data, releases the SDA line, and monitors the line for an acknowledge. Once it receives this acknowledge, the CAT5241 will continue to transmit data ...
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... CAT5241 initiates the internal write cycle. ACK polling can be initiated immediately. This involves issuing the start condition followed by the slave address. If the CAT5241 is still busy with the write operation, no ACK will be returned. If the CAT5241 has completed the write operation, an ACK will be returned and the host can then proceed with the next instruction operation ...
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... I2 (MSB) Doc. No. MD-2011 Rev. O INSTRUCTION BYTE The next byte sent to the CAT5241 contains the instruction and register pointer information. The four most significant bits used provide the instruction opcode I [3:0]. The P1 and P0 bits point to one of four Wiper Control Registers. The least two significant bits, R1 and R0, point to one of the four data registers of each associated potentiometer ...
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... The Wiper Control Register is a volatile register that loses its contents when the CAT5241 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. ...
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... Four instructions require a two-byte sequence to complete, as illustrated in Figure 7. These instructions transfer data between the host/processor and the CAT5241; 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 ...
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... INSTRUCTION INSTRUCTION INSTRUCTION CAT5241 t WRID DATA DATA ...
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... CAT5241 Global Transfer Data Register (DR) to Wiper Control Register (WCR) S DEVICE ADDRESSES Global Transfer Wiper Control Register (WCR) to Data Register (DR) DEVICE ADDRESSES Transfer Wiper Control Register (WCR) to Data Register (DR) ...
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... Notes: (1) All dimensions are in millimeters. Angles in degree. (2) Complies with JEDEC standard MS-013. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice SYMBOL θ θ θ CAT5241 MIN NOM MAX 2.36 2.49 2.64 0.10 0.30 2.05 2.55 0.31 0.41 0.51 0.20 0.27 0.33 12.60 12.80 13.00 10.01 10.30 10.64 7.40 7.50 7.60 1.27 BSC 0.25 ...
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... CAT5241 (1)(2) TSSOP 20-Lead 4.4mm ( TOP VIEW D A2 SIDE VIEW For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) All dimensions are in millimeters. Angles in degree. (2) Complies with JEDEC standard M0-153. Doc. No. MD-2011 Rev. O SYMBOL MIN A A1 ...
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... All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard lead finish is Matte-Tin. (3) This device used in the above example is a CAT5241WI-10-T1 (SOIC, Industrial Temperature, 10kΩ, Tape & Reel, 1,000/Reel). (4) For additional package and temperature options, please contact your nearest Catalyst Semiconductor Sales office. ...
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... 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. ...