PCA9504ADGG中文资料Glue chip 4数据手册恩XP规格书

描述 Description

Overview 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.
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 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).

特性 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 Cel 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