PCA9531 Philips Semiconductors (Acquired by NXP), PCA9531 Datasheet
PCA9531
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PCA9531 Summary of contents
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... PCA9531 2 8-bit I C LED dimmer Product data Philips Semiconductors INTEGRATED CIRCUITS 2003 Nov 10 ...
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... The active low hardware reset pin (RESET) and Power On Reset (POR) initializes the registers to their default state causing the bits to be set high (LED off). Three hardware address pins on the PCA9531 allow eight devices to operate on the same bus. ORDER CODE TOPSIDE MARK ...
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... A0 Address input 0 A1 Address input 1 A2 Address input 2 LED drivers 0-3 V Supply ground SS LED drivers 4-7 Active low reset input Serial clock line Serial data line Supply voltage DD 3 Product data PCA9531 SDA DD 12 SCL A2 1 LED0 2 RESET 11 LED1 3 10 LED7 LED2 ...
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... SDA POWER- RESET RESET OSCILLATOR V SS 2003 Nov PWM0 PRESCALER 0 REGISTER REGISTER PWM1 PRESCALER 1 REGISTER REGISTER NOTE: ONLY ONE I/O SHOWN FOR CLARITY Figure 3. Block diagram 4 Product data PCA9531 INPUT REGISTER LED SELECT (LSx) REGISTER 0 1 LEDx BLINK0 BLINK1 SW02040 ...
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... The last bit of the address byte defines the operation to be performed. When set to logic 1 a read is selected while a logic 0 selects a write operation. CONTROL REGISTER Following the successful acknowledgement of the slave address, the bus master will send a byte to the PCA9531 which will be stored in the Control Register ...
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... DD the PCA9531 in a reset state until V has reached V DD point, the reset condition is released and the PCA9531 registers are initialized to their default states, all the outputs in the off state. EXTERNAL RESET A reset can be accomplished by holding the RESET pin low for a minimum of t ...
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... In this event, the transmitter must leave the data line HIGH to enable the master to generate a stop condition. DATA OUTPUT BY TRANSMITTER DATA OUTPUT BY RECEIVER SCL FROM MASTER S START condition 2003 Nov 10 not acknowledge acknowledge Figure 9. Acknowledgement on the I C-bus 7 Product data PCA9531 9 clock pulse for acknowledgement SW00368 ...
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... Figure 11. READ from register data from port A1 A0 DATA R/W acknowledge from slave DATA 2 DATA Figure 12. READ input port register 8 Product data PCA9531 data to register DATA acknowledge acknowledge from slave from slave DATA 1 VALID t pv SW01081 acknowledge acknowledge from slave ...
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... The supply current , above V and prevents additional supply current consumption when 100 k SW02086 Figure 15. Device supplied by a lower voltage 9 Product data PCA9531 5 V GPIO SW02041 , increases as V becomes lower than less than the LED supply DD 3 LED ...
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... LED4 and LED5 to blink 50% duty cycle. LED6 and LED7 will be set to be dimmed at 25% of their maximum brightness (duty cycle = 25%). Table 1. Start PCA9531 address with A0-A2 = low PSC0 subaddress + auto-increment Set prescaler PSC0 to achieve a period of 1 second: Blink period + 1 + PSC0 ) 1 152 ...
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... 0 2.3 V; Note 0 3.0 V; Note 0 5.0 V; Note 3 Product data PCA9531 MIN MAX UNIT -0.5 6 0.5 5 — +25 mA — 200 mA — 400 mW °C -65 +150 °C -40 +85 MIN TYP MAX UNIT 2 ...
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... RC time constant of the SDA bus. RESET 12 Product data PCA9531 2 C FAST MODE BUS UNITS UNITS MAX MIN MAX 100 0 400 kHz µs — 1.3 — µs — ...
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... Figure 16. Typical frequency variation over process at V MAX AVG MIN -40 Figure 17. Typical frequency variation over process at V 2003 Nov 10 0 +25 +70 TEMPERATURE (° +25 +70 TEMPERATURE (° Product data PCA9531 +20% +10% 0% PERCENT VARIATION -10% -20% -30% -40% +85 SW01085 +20% +10% 0% PERCENT VARIATION -10% -20% -30% -40% +85 SW01086 ...
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... SDA t t BUF LOW SCL t HD;STA P S 2003 Nov 10 Figure 18. Definition of RESET timing HD;DAT HIGH SU;DAT Sr Figure 19. Definition of timing 14 Product data PCA9531 ACK OR READ CYCLE t REC 50% 50 REC 50% LED OFF SW01087 t t HD;STA SU;STA SU;STO P SU00645 ...
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... Load resistor Load capacitance includes jig and probe capacitance Termination resistance should be equal to the output T impedance Z of the pulse generators. O Figure 21. Test circuitry for switching times 15 Product data PCA9531 STOP ACKNOWLEDGE CONDITION (A) (S) t VD;DAT t t VD;ACK SU;STO SW02143 and V ...
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... Philips Semiconductors 2 8-bit I C LED dimmer SO16: plastic small outline package; 16 leads; body width 3.9 mm 2003 Nov 10 16 Product data PCA9531 SOT109-1 ...
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... Philips Semiconductors 2 8-bit I C LED dimmer TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm 2003 Nov 10 17 Product data PCA9531 SOT403-1 ...
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... Philips Semiconductors 2 8-bit I C LED dimmer HVQFN16: plastic thermal enhanced very thin quad flat package; no leads; 16 terminals; body 0.85 mm 2003 Nov 10 18 Product data PCA9531 SOT629-1 ...
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... Philips Semiconductors 2 8-bit I C LED dimmer REVISION HISTORY Rev Date Description _1 20031110 Product data (9397 750 12292); ECN 853-2407 30411 dated 06 September 2003. Initial version 2003 Nov 10 19 Product data PCA9531 ...
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... Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Fax: + 24825 Document order number: 20 Product data PCA9531 2 C patent Koninklijke Philips Electronics N.V. 2002 All rights reserved. Printed in U.S.A. Date of release: 11-03 ...