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. It 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 include meeting timing specifications, buffering signals, and switching between power wells.

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