Toshiba Satellite 1400 Series Maintenance Manual page 30

1 Hardware Overview
– 64xx64x2 Pixel Hardware Pop-up Icon available in all modes –8 separate
bitmaps can be stored
– 33MHz PCI bus support
– 300MHz RAMDAC with gamma correction
– DDC1 and DDC2B+ support for Plug and Play monitors
– SM Bus I/F
• Name: Trident XP (into Northbridge) for Celeron Model
– RAM Size: 16MB (UMA)
! IPSC
• One 3DA3DT336PSC chip is used
! Thermo Sensor
• One ADM1032AR is used.
! RS232 Driver
• One MAXIM3243 chip is used.
! LAN
• One ED82562 chip is used. (Satellite 2400 series)
• One GD82551 chip is used (Satellite 1400 series)
! KBC/EC (Keyboard Controller/Embedded Controller)
• One M306K7F8LRP EA chip functions as both KBC and EC.
• KBC has the following functions:
– Scan controller to check status of keyboard matrix
– Interface controller between the keyboard scan controller and the system
• EC has the following functions:
– Power supply sequence control
– System I/F
– Thermal conditions control
– Flash rewriting
! PSC (Power Supply Controller)
• One TMP87PM48U chip is used.
• This controller controls the power sources.
! Onboard memory: 0MB
1-16
1.2 System Unit Block Diagram
Satellite 1400/2400 Series Maintenance Manual (960-364/365)