LG GCE-8240B Service Manual page 40

Pin Name Pin #
RCASH# /
RWEH# / 27
UDQM
2.4.10 POWER SUPPLY
POWER SUPPLY
Pin Name
VDD
IOVDD
VSS 10, 23, 35, 47, 60, 68, 75, 84, 93, 109, 135, 174, 190
AVDD
AVSS
VREF
2VREF
46
Typ e
DRAM Column Address Strobe High: For dual-CAS# DRAM Mode,
O
RCASH# is the column address strobe for the upper data byte (R
DRAM Write Enable High: For dual-WE# DRAM mode, RWEH# enables
O
writing of the upper data byte (RD
SDRAM Data Mask High: In SDRAM Mode, UDQM is driven high to disable
O
RAM data output or block write data for RD15 8.
Pin #
22, 83, 108, 189
9, 34, 46, 57, 74, 92, 134, 173
152, 153, 157, 158, 199, 206
1, 150, 155, 156, 165, 195, 200
164, 196
205
Description
8).
Description
Digital Power 2.5 Volts
I/O Power 3.3 Volts
Digital Ground
Analog Power 3.3 Volts
Analog Ground
Reference voltage 1.65 Volts
Reference voltage 3.3 Volts
.