Texas Instruments Extensa 660 Series - Page 54

4-2 Theory of Operation
Figure 4-1 Extensa Functional Block Diagram
Bank 1
8, 16MB
(DIMM)
Pentium
P55CLM-
166MHz
CORE CHIP
UMC
UM8891BF-N,
UM8892BF-N,
UM8886BF-N
VGA CHIP
C&T 65548
CRT ON
LCM
INVERTER
FLASH BIOS
256KB
PCMCIA
OMEGA
82C094
KB
CONTROLLER
MITSUBISHI
M38813M4
SUPER I/O
NS PC87336VLJ
GLIDE PAD
EXT. KB/MOUSE
INTERNAL KB
CARD 1
CARD 0
FDD
HDD
PRINTER
CLOCK GEN
ICS
AV9154-43
AC
ADAPTER
DC/DC
CONVERTER
14.318MHz
24MHz
66MHz
14.318MHz X'TAL
BATTERY IN
+3.45V
+5V
+12V
DC-IN
COM1
CD-ROM
(8X, 10X)
AC Input
1MB
VIDEO RAM