cat5140 ON Semiconductor, cat5140 Datasheet
cat5140
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cat5140 Summary of contents
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... I C interface. On power up, the wiper position is reset to the most recent value stored in the non−volatile memory register (IVR). The CAT5140 is available free, RoHS compliant 8−lead MSOP package, and operates over the industrial temperature range of −40°C to +85°C. Features • ...
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... WP: Write Protect Input The WP pin when tied low prevents any write operations within the device. SCL: Serial Clock The CAT5140 serial clock input pin is used to clock all data transfers into or out of the device. SDA: Serial Data The CAT5140 bidirectional serial data pin is used to transfer data into and out of the device ...
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Table 5. POTENTIOMETER CHARACTERISTICS Parameter Potentiometer Resistance ‘−50’ Potentiometer Resistance ‘−00’ Potentiometer Resistance Tolerance Power Rating Wiper Current Wiper Resistance Integral Non−Linearity Differential Non−Linearity Integral Non−Linearity Differential Non−Linearity Voltage Resolution Zero Scale Error Full ...
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Table 7. CAPACITANCE (T = 25° 1.0 MHz Test Input/Output Capacitance (SDA) Input Capacitance (SCL, WP) Table 8. POWER UP TIMING (Notes 8 and 9) Parameter Power−up to Read Operation Power−up to Write Operation 8. This ...
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SCL SDA Start Condition LOW SCL t SU:STA t HD:STA SDA IN SDA OUT SCL from Master Data Output from Transmitter Data Output from Receiver Start Start SCL SDA IN t SU:WP WP Figure 2. Start and ...
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... START condition and its slave address. If the device has been selected along with a write operation, it responds with an acknowledge after receiving each 8−bit byte. When the CAT5140 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 CAT5140 will continue to transmit data ...
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... NoACK. Address 7: RESERVED The user should not read or write to this address. CAT5140 will respond with NoACK and it will take no action. Address 07h can be accessed only in a sequential read and its content is FFh. Address 6−2: Non−Volatile General Purpose Memory (I/O) 8− ...
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... Address 1: Device ID (Read Only) Bit 7 defines the DPP device manufacturer; Catalyst/On Semiconductor = high (1) Bit 7 6 Name writing to address 1 has no effect. Attempts will return an ACK but no data will be written. Address 0: IVR/WR Register (I/O) Address 00h accesses one of two memory registers: the initial value register (IVR) or the wiper register (WR) depending upon the value of bit 7 in Access Control Register (ACR) which is at address 08h, above. WR controls the wiper’ ...
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Single write to either a volatile or non−volatile register. Note that Bit 7 of ACR determines which memory type is being written. Table 15. SINGLE WRITE (1) (2) Start Slave 0 Address R/W A single write to either a volatile ...
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E E1 TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-187. PACKAGE DIMENSIONS MSOP 8, 3x3 CASE 846AD−01 ISSUE O SYMBOL MIN A A1 ...
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... N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5773−3850 http://onsemi.com 11 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative CAT5140/D ...