PCA9504A

Logic Family :
Number of Lines (Input / Output) :
Propagation Delay Time :
Operating Supply Voltage :
Power Dissipation :
Operating Temperature Range :
Package / Case :
Packaging : Tube


Features:

• Dual, Strapping, Selectable Feature Sets
• Audio-disable Circuit
• Mute Audio Circuit
• 5 V reference generation
• 5 V standby reference generation
• HD single color LED driver
• IDE reset signal generation/PCIRST# buffers
• PWROK (PWRGD_3V) signal generation
• Power Sequencing / BACKFEED_CUT
• Power Supply turn on circuitry
• RMSRST# generation
• Voltage translation for DDC to VGA monitor
• HSYNCH / VSYNCH voltage translation to VGA monitor
• 3-state buffers for test
• Extra GP Logic gates
• Power LED Drivers
• Flash FLUSH# / INIT# circuit
• 5 V I²C to 3.3 V SMBus conversion to 400 kHz
• Requires both 3.3 V and 5.0 V operating voltages
• 0 to +70 °C operating temperature range
• ESD protection exceeds 1000 V HBM per JESD22-A114 and 750 V CDM per JESD22-C101
• Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
• Package offered: TSSOP56


Pinout




Specifications

symbol	partameter	conditions	LIMITS		unit
			MIN	MAX
V_5P0_STBY	DC 5.0V supply		-0.5	+6.0	V
V_3P3_STBY	DC 3.3V supply		-0.5	+6.0	V
VI (5V)	DC input voltage (5 V pins)	Note 2	-0.5	V_5P0_STBY+0.5	V
VO (5V)	Output voltage range (5 V pins)	Note 2	-0.5	V_5P0_STBY+0.5	V
VI (3.3V)	DC input voltage (3.3 V pins)	Note 2	-0.5	V_3P3_STBY+0.5	V
VO (3.3V)	Output voltage range (3.3 V pins)	Note 2	-0.5	V_3P3_STBY+0.5	V
SPD	Supply power dissipation			100	MW
ESD	Static Discharge voltage		2000		V
TSTG	Storage temperature range		-55	150	°C
TOTR	Operating Temperature Range		0	70	°C

Description

The PCA9504A Glue Chip 4 is a highly integrated and cost-efficient custom ASIC that reduces logic part count, overall component cost, and board space requirements for PC designers and manufacturers. The Glue Chip 4 supports the latest generation of high-volume platforms based on Intel[ processors and chipsets that require additional external circuitry in order to function properly. PCA9504A is used on entry servers/workstations (840 and 860 chipsets), high-end desktops (820 and 850 chipsets), as well as mid range (815, 830 and 845 chipsets) and low-end (810 chipset) motherboards. Some of these functionalities of PCA9504A include meeting timing specifications, buffering signals, and switching between power wells.

The PCA9504A Glue Chip 4 integrates miscellaneous motherboard logic and analog functions into a single, small footprint 56-pin TSSOP device. The Glue Chip 4 of PCA9504A typically resides on the motherboard close to the I/O controller Hub (ICH) and is optimized for the Intel 82801BA I/O controller hub (ICH2).