PCA9558 PHILIPS [NXP Semiconductors], PCA9558 Datasheet
PCA9558
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PCA9558 Summary of contents
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... PCA9558 2 8-bit I C and SMBus I/O port with 5-bit multiplexed/1-bit latched 6-bit I and 2 k bit EEPROM Product data Supersedes data of 2000 Dec 04 hilips Semiconductors INTEGRATED CIRCUITS 2 C EEPROM 2002 May 24 ...
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... LEDs. Monitored or collected information can be read through the I EEPROM. 2K serial EEPROM — used to store information such as card identification or revision/maintenance history on every motherboard/linecard and can be read or written via I when required. The PCA9558 has 1 address pin allowing devices to be placed on the same I PIN CONFIGURATION 2 C-bus I/Os ...
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... General purpose Input/Output 0 through 7 (open drain outputs) Active-LOW Select of MUX_IN inputs or EEPROM contents for MUX_OUT outputs Open drain multiplexed outputs Open drain outputs from non-volatile memory Active-LOW control forces all MUX outputs to logic 0 Active-HIGH EEPROM write protect Power supply : +3 Product data PCA9558 ...
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... INTERFACE LOGIC SCL INPUT SDA FILTER POWER- RESET GND 256 BYTE EEPROM WRITE PROTECT I/O_OUT_LOW 2002 May 24 6-BIT EEPROM MULTIPLEXER CONTROL LOGIC GPIO 4 Product data PCA9558 NON_MUXED_OUT LATCH 1 MUX_OUTA MUX_OUTB 5-BIT MUX_OUTC MUX_OUTD MUX_OUTE 0 8 I/O0–7 SW00633 ...
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... Mux Data Data E Data D Data C 2 Figure MUX_OUT Data Byte 0 MUX_IN E MUX_IN D MUX_IN C 2 Figure MUX_IN Data Byte 5 Product data PCA9558 LSB 1 A0 R/W# SW00615 2 C bus is powered down the component CC SW00634 LSB Mux Mux Data B Data A SW00456 LSB ...
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... EEPROM to drive on the MUX_OUTx and NON_MUXED_OUT pins. In this configuration, the NON_MUXED_OUT will latch data when the PCA9558 acknowledges the I MUX_OUTx or NON_MUXED_OUT while in this mode. When the MUX_OUT_LOW signal is a logic 0 and the multiplexer is configured so that the MUX_OUTx pins are being driven by the 6-bit EEPROM, the MUX_OUTx pins will be driven to a logic 0 ...
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... A read of the present value of the inputs MUX_INx can be done via 2 the I C. This is done by addressing the PCA9558 in a write mode and entering the correct command code. The preset value on the MUX_INx inputs is latched at the command code ACKNOWLEDGE. A REPEATED START is then sent with the R/W bit set to a logic 1, ...
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... COMMAND BYTE SLAVE ADDRESS 2 Figure read of MUX_INx inputs 8 Product data PCA9558 ACKNOWLEDGE FROM SLAVE P DATA BYTE SW00637 ACKNOWLEDGE NO ACKNOWLEDGE FROM SLAVE FROM MASTER DATA FROM SLAVE R/W SW00638 ACKNOWLEDGE NO ACKNOWLEDGE ...
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... A write operation to the 6-bit EEPROM requires that an address byte be written after the command byte. This address points to the 6-bit address space in the EEPROM array. Upon receipt of this address, the PCA9558 waits for the next byte that will be written to the EEPROM. The master then ends the transaction with a STOP 2 condition on the I C ...
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... WORD ADDRESS ACKNOWLEDGE ACKNOWLEDGE FROM SLAVE FROM SLAVE EEPROM ADDRESS SLAVE ADDRESS 10 Product data PCA9558 ACKNOWLEDGE FROM SLAVE A DATA N A AUTO-INCREMENT WORD ADDRESS ACKNOWLEDGE FROM SLAVE DATA N AUTO-INCREMENT WORD ADDRESS SW00642 15 ACKNOWLEDGE ...
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... EEPROM. Because of being able to address any location in the EEPROM block using the 2nd command byte, the designer using the PCA9558 on the SMBus will have to program around it, an easy thing to do. The device designers had to deal with the specifics of addressing the EEPROM and chose the ...
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... I C/SMBus to poll the PCA9558 devices located on the system cards for status or version control type of information. The PCA9558 may be programmed at manufacturing to store information regarding board build, firmware version, 2002 May 24 Multi–card systems in Telecom, Networking and Base Station ...
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... 0 Product data PCA9558 RATING UNIT 2.5 to 4.6 V –0 +0 –0 +0 –60 to +150 C LIMITS UNIT UNIT MIN MAX 3 3.6 V –0.5 0.9 V 2.7 4.0 V — 0.4 V — ...
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... mA 100 mA 100 mA Product data PCA9558 LIMITS UNIT UNIT TYP. MAX. 3.0 — 3.6 V — — — — — 2.3 2.6 V — 0 — 0 — — ...
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... T Write cycle time W NOTE: 1. WRITE CYCLE time can only be measured indirectly during the write cycle. During this time, the device will not acknowledge its I 2002 May 24 PARAMETER PARAMETER 15 Product data PCA9558 LIMITS UNIT UNIT MIN. TYP. MAX. — — ...
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... V CC GENERATOR SW00766 DEFINITIONS R = Load resistor Load capacitance includes jig and probe capacitance Termination resistance should be equal pulse generators. 16 Product data PCA9558 t t HD;STA SU;STA SU;STO P SU00645 OUT L D.U. ...
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... Philips Semiconductors 2 8-bit I C and SMBus I/O port with 5-bit multiplexed/1-bit 2 latched 6-bit I C EEPROM and 2 k bit EEPROM TSSOP28: plastic thin shrink small outline package; 28 leads; body width 4.4 mm 2002 May 24 17 Product data PCA9558 SOT361-1 ...
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... May components conveys a license under the Philips’ system provided the system conforms to the Fax: + 24825 Document order number: 18 Product data PCA9558 2 C patent Koninklijke Philips Electronics N.V. 2002 All rights reserved. Printed in U.S.A. Date of release: 05-02 9397 750 09889 ...