cat5251 Catalyst Semiconductor, cat5251 Datasheet
cat5251
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cat5251 Summary of contents
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... The CAT5251 can be used as a potentiometer two terminal, variable resistor intended for circuit level or system level adjustments in a wide variety of applications available in the -40°C to 85°C industrial operating temperature range and offered in a 24-lead SOIC and TSSOP package ...
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... SI: Serial Input SI is the serial data input pin. This pin is used to input all opcodes, byte addresses and data to be written to the CAT5251. Input data is latched on the rising edge of the serial clock. SO: Serial Output SO is the serial data output pin. This pin is used to transfer data out of the CAT5251 ...
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... Latch-up protection is provided for stresses up to 100mA on address and data pins from – © Catalyst Semiconductor, Inc. Characteristics subject to change without notice DEVICE OPERATION The CAT5251 is four resistor arrays integrated with an SPI bus data SPI serial interface logic, four 8-bit wiper control registers and sixteen 8-bit, non-volatile memory data registers ...
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... CAT5251 POTENTIOMETER CHARACTERISTICS Over recommended operating conditions unless otherwise stated. Symbol Parameter R Potentiometer Resistance (-00) POT R Potentiometer Resistance (-50) POT Potentiometer Resistance Tolerance R Matching POT Power Rating I Wiper Current W R Wiper Resistance W V Voltage on any TERM H V Noise N Resolution (2) Absolute Linearity (3) Relative Linearity ...
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... CAT5251 (1) PIN CAPACITANCE Applicable over recommended operating range from T Symbol Parameter C Output Capacitance (SO) OUT C ¯¯¯ , SCK, SI, WP Input Capacitance (CS IN A.C. CHARACTERISTICS Over recommended operating conditions unless otherwise stated. Symbol Parameter t Data Setup Time SU t Data Hold Time H t SCK High Time ...
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... CAT5251 WRITE CYCLE LIMITS Over recommended operating conditions unless otherwise stated. Symbol Parameter t Write Cycle Time WR RELIABILITY CHARACTERISTICS Over recommended operating conditions unless otherwise stated. Symbol Parameter (1) N Endurance END (1) T Data Retention DR (1) V ESD Susceptibility ZAP (1) I Latch-Up LTH Figure 1. Sychronous Data Timing ...
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... Catalyst Semiconductor, Inc. Characteristics subject to change without notice INSTRUCTION BYTE The next byte sent to the CAT5251 contains the instruction and register pointer information. The four most significant bits used provide the instruction opcode I3-I0. The R1 and R0 bits point to one of the four data registers of each associated potentiometer ...
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... Finally loaded with the content of its data register zero (DR0) upon power-up. The Wiper Control Register is a volatile register that loses its contents when the CAT5251 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 CAT5251; 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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... CAT5251 Figure 10. Increment/Decrement INC/DEC Command Issued SCK INSTRUCTION FORMAT Read Wiper Control Register (WCR) DEVICE ADDRESSES ¯¯¯ Write Wiper Control Register (WCR) DEVICE ADDRESSES ¯¯¯ Read Data Register (DR) DEVICE ADDRESSES ¯ ...
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... CS Write Cycle 1 0 INSTRUCTION High Voltage ¯¯¯ CS Write Cycle INSTRUCTION ¯¯¯ INSTRUCTION I/D I CAT5251 (1) DATA . . . I/D I/D ¯¯¯ CS Doc. No. MD-2017 Rev. F ...
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... CAT5251 PACKAGING OUTLINE DRAWINGS (1)(2) SOIC 24-Lead 300mils ( PIN#1 IDENTIFICATION TOP VIEW D A 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 degrees. (2) Complies with JEDEC standard MS-013. Doc. No. MD-2017 Rev. F ...
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... 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 degrees. (2) Complies with JEDEC standard MO-153. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice θ1 13 CAT5251 SYMBOL MIN NOM MAX A 1.20 A1 0.05 0.15 A2 0.80 1. ...
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... Y: TSSOP ORDERING PART NUMBER CAT5251WI-50 CAT5251WI-00 CAT5251YI-50 CAT5251YI-00 Notes: (1) All packages are RoHS compliant (Lead-free, Halogen-free). (2) This device used in the above example is a CAT5251WI-50-T1 (SOIC, Industrial Temperature, 50kΩ, Tape & Reel). Doc. No. MD-2017 Rev. F (1) I Temperature Range Resistance dustrial (- 40º ...
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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 ...