Specifications

Chapter 2 Product Overview
8 Reference Manual LittleBoard 735
Major Components (ICs)
Table 2-1 on page 8 lists the major ICs on the LittleBoard 735, including a brief description of each.
Figures 2-3 and 2-4 show the locations of the chips.
Table 2-1. Major Integrated Circuit Descriptions and Functions
Chip Type Mfg. Model Description Function
CPU (U1) Intel Atom N270 CPUs offered at 1.6GHz Embedded
CPU
Memory Hub (U2) Intel 82945GSE Northbridge Memory and Video
controller
Memory and
Video
I/O Hub (U4) Intel 82801GBM
(ICH7-M)
Southbridge I/O controller I/O
Functions
Super I/O
(U15 on back of the
board)
[See Figure 2-4]
SMC SCH3114I-NU Remaining I/O controller I/O
Functions
Ethernet Controller
(U10)
Intel 82574IT 10/100/1000BaseT Gigabit
Ethernet controller
LAN0
Ethernet
Function
Ethernet Controller
(U12)
Intel 82562GT 10/100BaseT Fast Ethernet
controller
LAN1
Ethernet
Function
ISA Bridge (U13) ITE IT8888F PCI-to-ISA bridge ISA Bus
Audio AC’97
CODEC (U14)
Realtek ALC203-LF Audio AC’97 CODEC for audio
signals
Audio
In/Out
RS232 Transceiver
(U17)
Maxim MAX213ECAI+ RS232 Transceiver for COM1
and COM2
Serial Ports 1
and 2
Transceiver
RS485/422
Transceiver (U19)
Linear LTC1334CG#PBF RS422/485 Transceiver for
COM1 and COM2
Serial Ports 1
and 2
Transceiver
RS232 Transceiver
(U21)
Maxim MAX213ECAI+ RS232 Transceiver for COM3
and COM4
Serial Ports 3
and 4
Transceiver
RS485/422
Transceiver (U22)
Linear LTC1334CG#PBF RS422/485 Transceiver for
COM3 and COM4
Serial Ports 3
and 4
Transceiver
Ethernet
Transformer (U25)
Pulse H1102NLT Fast Ethernet Transformer Ethernet
Magnetics