PCA9553 Philips Semiconductors, PCA9553 Datasheet
PCA9553
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PCA9553 Summary of contents
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... PCA9553 2 4-bit I C LED driver with programmable blink rates Product data sheet Supersedes data of 2003 May 02 Philips Semiconductors INTEGRATED CIRCUITS 2004 Oct 01 ...
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... LED on and off. This greatly increases the amount of traffic on 2 the I C-bus and uses up one of the master’s timers. The PCA9553 LED Blinker instead requires only the initial set-up command to program BLINK RATE 1 and BLINK RATE 2 (i.e., the frequency and duty cycle). From then on, only one command from the bus master is required to turn each individual open drain output ON, OFF cycle at BLINK RATE 1 or BLINK RATE 2 ...
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... CONTROL SDA POWER- RESET OSCILLATOR V SS 2004 Oct BLINK0 PWM0 PRESCALER 0 REGISTER REGISTER PWM1 BLINK1 PRESCALER 1 REGISTER REGISTER NOTE: ONLY ONE I/O SHOWN FOR CLARITY Figure 2. Block diagram 3 Product data sheet PCA9553 INPUT REGISTER LED SELECT (LSx) REGISTER LEDx SW01036 ...
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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 PCA9553 which will be stored in the Control Register ...
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... POWER-ON RESET When power is applied to V the PCA9553 in a reset condition until V this point, the reset condition is released and the PCA9553 registers are initialized to their default states, with all outputs in the off state. Thereafter, V must be lowered below 0 reset the device ...
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... Figure 8). SW00363 Figure 7. Definition of start and stop conditions SLAVE MASTER TRANSMITTER/ TRANSMITTER RECEIVER Figure 8. System configuration 6 Product data sheet PCA9553 SDA SCL P STOP condition SW00365 MASTER TRANSMITTER/ MULTIPLEXER ...
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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 2004 Oct 01 not acknowledge acknowledge Figure 9. Acknowledgement on the I C-bus 7 Product data sheet PCA9553 9 clock pulse for acknowledgement SW00368 ...
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... R/W slave address SDA start condition READ FROM PORT DATA INTO DATA 1 PORT NOTES: 1. This figure assumes the command byte has previously been programmed with 00h. 2. PCA9553/01 shown. 2004 Oct command byte R/W acknowledge ...
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... above V and prevents additional supply current consumption when SW02086 Figure 15. Device supplied by a lower voltage 9 Product data sheet PCA9553 5 V SW01039 becomes lower than V and less than the LED supply DD 3 LED V DD ...
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... C LED driver with programmable blink rates Programming example The following example will show how to set LED0 and LED1 off. It will then set LED2 to blink at 1 Hz, 50% duty cycle. LED3 will be set to blink at 4 Hz, 25% duty cycle. PCA9553/01 is used in this example. Table 1. Start ...
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... 2.3 V; Note 0 3.0 V; Note 0 4.5 V; Note 3 – — 11 Product data sheet PCA9553 MIN MAX UNIT –0.5 6 – 0.5 5 — — 100 mA — 400 mW –65 +150 C –40 +85 C TYP ...
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... Oct 01 STANDARD MODE 2 I C-BUS MIN 0 4.7 4.0 4.7 4 — — — 250 4.7 4.0 — — — — 100 1 12 Product data sheet PCA9553 FAST MODE 2 I C-BUS UNITS MAX MIN MAX 100 0 400 kHz — 1.3 — s — 0.6 — s — 0.6 — s — 0.6 — ...
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... MIN –40 Figure 17. Typical frequency variation over process at V 2004 Oct 01 0 +25 +70 TEMPERATURE ( +25 +70 TEMPERATURE ( Product data sheet PCA9553 +20% +10% 0% PERCENT VARIATION –10% –20% –30% –40% +85 SW02311 +20% +10% 0% PERCENT VARIATION –10% –20% –30% –40% ...
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... 500 D.U. FOR SDA AND SCL > the pulse generators. O Figure 20. Test circuitry for switching times 14 Product data sheet PCA9553 t t HD;STA SU;STA SU;STO P SU00645 STOP BIT 8 ACKNOWLEDGE CONDITION (D0) (A) (P) t VD;ACK t SU;STO SW02333 ...
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... Philips Semiconductors 2 4-bit I C LED driver with programmable blink rates SO8: plastic small outline package; 8 leads; body width 3.9 mm 2004 Oct 01 15 Product data sheet PCA9553 SOT96-1 ...
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... Philips Semiconductors 2 4-bit I C LED driver with programmable blink rates TSSOP8: plastic thin shrink small outline package; 8 leads; body width 3 mm 2004 Oct 01 16 Product data sheet PCA9553 SOT505-1 ...
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... Supersedes data of 2002 Dec 13 (9397 750 10859). _1 20021213 Product data (9397 750 10859); ECN 853–2397 29264 of 09 December 2002. 2004 Oct 01 2 C-bus address from ‘25h’ to ‘2Bh’ 2 C-bus address from ‘09h’ to ‘0Ah’ . POR 17 Product data sheet PCA9553 ...
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... Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Fax: + 24825 Document number: 18 Product data sheet PCA9553 2 C patent Koninklijke Philips Electronics N.V. 2004 All rights reserved. Published in the U.S.A. Date of release: 10-04 ...