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AD5233BRU10-REEL7 Datenblatt(PDF) 5 Page - Analog Devices |
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AD5233BRU10-REEL7 Datenblatt(HTML) 5 Page - Analog Devices |
5 / 14 page PRELIMINARY TECHNICAL DATA Nonvolatile Memory Digital Potentiometers AD5231/AD5232/AD5233 REV PrF 5 22 MAR '01 Information contained in this Preliminary data sheet describes a product in the early definition stage. There is no guarantee that the information contained here will become a final product in its present form. For latest information contact Walt Heinzer/Analog Devices, Santa Clara, CA. TEL(408)382-3107; FAX (408)382-2708; walt.heinzer@analog.com AD5231 PIN CONFIGURATION O1 CLK SDI SDO GND VSS T1 B1 O2 RDY CS CS CS CS PR PR PR PR WP WP WP WP VDD A1 W1 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 AD5231 PIN FUNCTION DESCRIPTION # Name Description 1 O1 Non-Volatile Digital Output #1, ADDR(O1) = 1H, data bit position D0 2 CLK Serial Input Register clock pin. Shifts in one bit at a time on positive clock CLK edges. 3 SDI Serial Data Input Pin. 4 SDO Serial Data Output Pin. Open Drain Output requires external pull-up resistor. Commands 9 & 10 activate the SDO output. See Instruction operation Truth Table. Other commands shift out the previously loaded bit pattern delayed by 24 clock pulses. This allows daisy-chain operation of multiple packages. 5 GND Ground pin, logic ground reference. 6 VSS Negative Supply. Connect to zero volts for single supply applications. 7 T1 Used as digital input during factory test mode. Leave pin floating or connect to VDD or VSS. 8 B1 B terminal of RDAC1. 9 W1 Wiper terminal of RDAC1, ADDR(RDAC1) = 0H 10 A1 A terminal of RDAC1. 11 VDD Positive Power Supply Pin. Should be ≥ the input-logic HIGH voltage. 12 WP Write Protect Pin. When active low WP prevents any changes to the present contents except retrieving EEMEM contents and RESET. 13 PR Hardware over ride preset pin. Refreshes the scratch pad register with current contents of the EEMEM register. Factory default loads midscale 200H until EEMEM loaded with a new value by the user ( PR is activated at the rising logic high transition) 14 CS Serial Register chip select active low. Serial register operation takes place when CS returns to logic high. 15 RDY Ready. Active-high open drain output. Identifies completion of commands 2, 3, 8, 9, 10. 16 O2 Non-Volatile Digital Output #2, ADDR(O2) = 1H, data bit position D1. AD5232 PIN CONFIGURATION CLK SDI SDO GND VSS A1 W1 B1 RDY CS CS CS CS PR PR PR PR WP WP WP WP VDD A2 W2 B2 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 AD5232 PIN FUNCTION DESCRIPTION # Name Description 1 CLK Serial Input Register clock pin. Shifts in one bit at a time on positive clock edges. 2 SDI Serial Data Input Pin. Shifts in one bit at a time on positive clock CLK edges. 3 SDO Serial Data Output Pin. Open Drain Output requires external pull-up resistor. Commands 9 & 10 activate the SDO output. See Instruction operation Truth Table. Other commands shift out the previously loaded bit pattern delayed by 16 clock pulses. This allows daisy-chain operation of multiple packages. 4 GND Ground pin, logic ground reference 5 VSS Negative Supply. Connect to zero volts for single supply applications. 6 A1 A terminal of RDAC1. 7 W1 Wiper terminal of RDAC1, ADDR(RDAC1) = 0H. 8 B1 B terminal of RDAC1. 9 B2 B terminal of RDAC2. 10 W2 Wiper terminal of RDAC2, ADDR(RDAC2) = 1H. 11 A2 A terminal of RDAC2. 12 VDD Positive Power Supply Pin. Should be ≥ the input-logic HIGH voltage. 13 WP Write Protect Pin. When active low, WP prevents any changes to the present contents, except retrieving EEMEM content and RESET. 14 PR Hardware over ride preset pin. Refreshes the scratch pad register with current contents of the EEMEM register. Factory default loads midscale 80H until EEMEM loaded with a new value by the user ( PR is activated at the logic high transition). 15 CS Serial Register chip select active low. Serial register operation takes place when CS returns to logic high. 16 RDY Ready. Active-high open drain output. Identifies completion of commands 2, 3, 8, 9, 10. |
Ähnliche Teilenummer - AD5233BRU10-REEL7 |
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Ähnliche Beschreibung - AD5233BRU10-REEL7 |
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