BU2098F-E2 Rohm Semiconductor, BU2098F-E2 Datasheet
BU2098F-E2
Specifications of BU2098F-E2
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BU2098F-E2 Summary of contents
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... TECHNICAL NOTE Serial-in / Parallel-out Driver Series Serial / Parallel 2-input Drivers BU2098F, BU2090F, BU2090FS ●Description Serial-in-parallel-out driver is a open drain output driver. It incorporates a built-in shift register and a latch circuit to turn on a maximum of 12 LED by a 2-line interface, linked to a microcontroller. A open drain output provides maximum of 25mA current. ...
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... Parameter Power supply voltage Power dissipation1 Power dissipation2 Operating temperature range Storage temperature range Output voltage Input voltage Allowable loss of single unit * Reduced by 3mW/℃ over 25℃. (BU2098F Reduced by 3mW/℃ over 25℃ Reduced by 5mW/℃ over 25℃ Reduced by 5.0mW for each increase 1℃ over 25℃.(When mounted on a board 70mm×70mm×1.6mm Glass-epoxy PCB) ...
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... BU2098F PIN No. Pin Name I N.C. 14 SCL 15 SDA I BU2090F/FS PIN No. Pin Name I DATA 3 CLOCK Q10 15 Q11 Address input, internally pull- Open drain output - GND O Open drain output - Non connected I Serial clock input Serial data input/output - Power supply - GND I Serial data input ...
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... BU2090F/FS DATA, CLOCK GND (V ) GND (V SS BU2098F A0～ GND (V ) GND (V ) GND ( Shift Register Shift Register BU2090F/FS Q0～Q11 GND ( BU2098F SDA GND (V ) GND (V ) GND ( 4/ Write t 8bit c Buffer Write t 12bit c Buffer h BU2098F Q0～Q7 OUT GND ( BU2098F SCL GND ( Q0～Q7 Q0～Q11 OUT V DD GND ( ...
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... V Parameter SCL clock frequency Bus free time between start-stop condition Hold time start condition Low period of the SCL clock High period of the SCL clock Set up time Re-start condition Data hold time Data set up time ...
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The start condition is a “HIGH” to “LOW” transition of the SDA line while SCL is “HIGH”. ○Stop condition The stop condition is a “LOW” to “HIGH” transition of the SDA line while SCL is “HIGH”. SDA ...
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... SLAVE ADDRESS Slave address Write Data Fixed for BU2098F ACK ACK DATA P “0” (Write) DATA slave address ACK ACK Sr “0” (Write) Fig.4 DATA transmit R/W ACK D7 D6 Table 1 for WRITE format A0～A2 Each bit can be defined by the input levels of pins A0～A3. ...
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... Slave address ・RESET CONDITION After reset, Q0～Q7 pins are ON. (LEDs are all ON.) ・RISING TIME OF POWER SUPPLY V must rise within 10ms. If the rise time would exceed 10ms afraid not to reset the BU2098F R/W ACK D7 D6 Fig.5 Timing chart for WRITE Power Supply ON ...
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V Parameter Minimum clock frequency Data shift set up time Data shift hold time Data latch set up time Data latch hold time Data latch ”L” set up time Data latch ”L” hold time ...
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... Slave address Device code SCL Start condition SDA 【BU2090F/FS】 CLOCK DATA D11 D10 Q11 Q10 External terminal ACK Note) Diagram shows a status where a pull-up resistor is connected to output Note1) Note2) Output terminal is provided with a pull-up resistor. 10/12 ...
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Notes 1. Absolute maximum ratings An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break down the devices, thus making impossible to identify breaking mode, such as a short circuit ...
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Designations (Selections) for Ordering ROHM model name BU SOP16 <Dimension> 10.0±0 1.27 0.4±0.1 SSOP-A16 <Dimension> 6.6±0 0.15±0.1 0.1 0.8 0.36±0 Product number Package type F ...
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Appendix No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product ...