Part Number : IT8502
Function : Power IO Controller IC Chip
Package : LQFP/QFP 128 pin
Manufactures : ITE Tech. INC.
Images :
Pinout 1
Pinout 2
Description :
The IT8502 is a highly integrated embedded controller with system functions suitable for mobile system applications. The IT8502 directly interfaces to the LPC bus and provides ACPI embedded controller function, keyboard controller (KBC) and matrix scan, external flash interface for system BIOS and EC code, PWM and ADC for hardware monitor, PS/2 interface for external keyboard/mouse devices, BRAM and system wake up functions for system power management. It also supports the external flash ( or EPROM ) to be shared by the host and EC side.
• 4K SRAM
• Up to 16MB Serial Flash
• 12 ADC Channels, 10-bit
• 6 DAC Channels, 8-bit
• 8 PWM Channels
• 8502 No CIR; 8512 2 MCE CIR Ports
• SPI Flash Read Protection
• SPI Flash Write Protection
• PM3 I/O Channel (62/66, 68/6C, 6A/6E)
• Ext. WDT Can Stop After Starting
ITE IT8502E/JX-L EC 外围线路图： EC reset timing 和 warm reset timing 图： EC 不动先确认一下几个地方： 1.Y2 开机后是否有起振？ 2. –PCUHOLD 是否为高电平？ 3. PCURST#信号是否为高电平？ 4. LID#信号是否为高电平？ 5. 3VPCU 是否正常供给 EC？ ６. NBSWON#信号波形是否正常？ ７. LFRAME#信号是否有动起来？ […]
Preview page
Ordering Information
1. IT8502E : LQFP 128L
2. IT8502F : QFP 128L
3. IT8502G : TFBGA 128
IT8502 Datasheet
PDF File : [ Download ]