56-Pin Plastic TSSOP0°C to +70°CPCA9504ADGGSOT364-1
2000 Aug 16853-2206 24368
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Philips SemiconductorsProduct specification
PCA9504AGlue chip 4
PIN DESCRIPTION
PIN(S)SYMBOLFUNCTION
13IVREF3IN3.3 V input
2PV_5P0_STBY5 V system standby power supply
3PV_3P3_STBY3 V system standby power supply
43IUGPO_FLUSH_CACHE / GP2_INGPO from SIO / ICH2 / Buffer 2 input
5REFA20M / GP1_INBA20M signal from ICH2 / NAND 1 input B
6REFINIT / GP1_INAINIT signal from the ICH2 / Buffer 1 input A
75V ODFLUSH_OUT_CPU / GP1_OUTOpen drain signal, goes to the CPU / NAND 1 output
85V ODINIT_OUT / GP2_OUTDelayed INIT signal into the CPU / Buffer 2 output
93ICLK_INEither 33MHz or 66MHz clock, based on SEL_33_66 pin
103IUSEL_33_66Strapping option for 33MHz or 66MHz CLK_IN
11, 29, 43GGNDGround
123IPCRISTPCI reset signal
133OPCRIST_OUTCopy of PCRIST, increased drive-strength
143IUAUD_ENAudio enable input (GPO from ICH2 / SIO)
153OAUD_RSTAudio reset output
165OIDE_RSTDRVIDE reset output, 5 V push/pull
173IOD3V_DDCSCLDDCSCL input/output 3.3 V side
185IOD5V_DDCSCLDDCSCL input/output 5 V side
193IOD3V_DDCSDADDCSDA input/output 3.3 V side
205IOD5V_DDCSDADDCSDA input/output 5 V side
213IUCPU_PRESENTCPU present signal from the processor
223ISLP_S3Signal from ICH2 for transitioning to the S3 power state
235V ODPS_ONPower supply turn-on signal
245V ODHD_LEDHard drive front panel LED output
255IUPRIMARY_HDIDE primary drive active input
265IUSCSISCSI drive active input
275IUSECONDARY_HDIDE secondary drive active input
285V ODBACKFEED_CUTSignal used for STR circuitry
305OLATCHED_BACKFEED_CUTSignal used for STR circuitry
315V ODFLUSH_OUT_FWHOpen drain signal, goes to the FWH
325IUPWRGD_PSPower good signal from power supply
335IUFPRSTReset signal from the front panel
343OPWRGD_3V3.3 V power good output
355V ODSCK_BJT_GATEGate signal from the SCK BJT in suspend to RAM
363ISLP_S5Signal from the ICH2 for transitioning to the S5 power state
373IUGRN_BLNKPower LED input, from SIO GPIO
383IUYLW_BLNKPower LED input, from SIO GPIO
395V ODYLW_LEDPower LED output
405V ODGRN_LEDPower LED output
415IDTEST_ENTest enable, 100K internal pull-down to GND
423ORSMRSTReset for the ICH2 resume well
44AOREF5VHighest system supply reference voltage
455IVREF5IN5V system primary supply input
463IUMUTE_AUDSignal from SIO to mute audio on power up/down
475OAUD_SHDNSignal to audio amp to signal shutdown
48AOREF5V_STBYHighest system standby voltage
493IHSYNC_3VHSYNCH input from chipset video
2000 Aug 16
3
Philips SemiconductorsProduct specification
PCA9504AGlue chip 4
PIN DESCRIPTION CONTINUED
PIN(S)SYMBOLFUNCTION
503IVSYNC_3VVSYNCH input from chipset video
515OHSYNC_5VHSYNCH output to monitor
525OVSYNC_5VVSYNCH output to monitor
53AIV
543IV/3OSTRAPStrapping option for GP or FLUSH mode
555IGP3_INGeneric logic gate 3 input
565V ODGP3_OUTGeneric logic gate 3 output
TYPEDESCRIPTION
3I3.3 V input signal
3IU3.3 V input signal with internal pull-up
5I5 V input signal
5IU5 V input signal with internal pull-up
5ID5 V input signal with internal pull-down
PPower (input)
GGround (input)
3O3.3 V output signal
5O5 V output signal
3V OD3.3 V open-drain output signal
5V OD5 v open-drain output signal
AOAnalog output
AIAnalog input
3IOD3.3 V input/output open-drain
5IOD5 V input/output open-drain
REFLInput voltage levels referenced to V
_VREFAnalog voltage reference for determining INIT/A20M input thresh-
1. The pin is internally pulled up to default to FLUSH mode.
2000 Aug 16
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4
PIN NAME & (PIN NUMBER)
Philips SemiconductorsProduct specification
SYMBOL
PARAMETER
CONDITION
UNIT
SYMBOL
PARAMETER
CONDITIONS
UNIT
PCA9504AGlue chip 4
ABSOLUTE MAXIMUM RATINGS
1
LIMITS
MINMAX
V_5P0_STBYDC 5.0V supply–0.5+6.0V
V_3P3_STBYDC 3.3V supply–0.5+6.0V
V
I (5V)
V
O (5V)
V
I (3.3V)
V
O (3.3V)
DC input voltage (5 V pins)Note 2–0.5V_5P0_STBY+0.5V
Output voltage range (5 V pins)Note 2–0.5V_5P0_STBY+0.5V
DC input voltage (3.3 V pins)Note 2–0.5V_3P3_STBY+0.5V
Output voltage range (3.3 V pins)Note 2–0.5V_3P3_STBY+0.5V
SPDSupply power dissipation100MW
ESDStatic Discharge voltage2000V
T
T
STG
OTR
Storage temperature range–55+150°C
Operating Temperature Range070°C
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other condition beyond those indicated under “recommended operating condition” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability .
2. The input and output voltage rating may be exceeded if the input and output current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
LIMITS
MINMAX
V
DD3
V
DDL
V
I
V
O
T
A
DC 3.3 V supply voltage3.03.6V
DC 2.5 V supply voltage4.755.25V
DC input voltage0V
DC output voltage0
V
V
DD3
DDL
DD3
V
V
Operating ambient temperature range in free air0+70°C