WED9LAPC2C16V8BC 查看數據表（PDF） - White Electronic Designs => Micro Semi
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WED9LAPC2C16V8BC Datasheet PDF : 24 Pages
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White Electronic Designs WED9LAPC2C16V8BC
Symbol
CADDR
CDATA
CWE#
COE#
VCADDR
VCDATA
VCBS
VCDQM
VCRAS#
VCCAS#
VCWE#
GCK
VCC
VSS
PIN CONFIGURATION (CONTINUED)
PIN DESCRIPTION
Pin Name
CRAM Address
CRAM Data
CRAM write enable
CRAM output enable
VCRAM address
VCRAM data
VCRAM bank select
VCRAM DQM
VCRAM row address strobe
VCRAM column address strobe
VCRAM write enable
Global clock
Power supply
Ground
Description
Address pins for the SSRAM that serves as the control RAM (CRAM)
Data I/O pins for the SSRAM control memory (CRAM)
Write enable control for the SSRAM control memory (CRAM)
Output enable control pin for the SSRAM control memory (CRAM)
Address pins for the SDRAM memory that serves as the virtual connection memory (VCRAM)
Data I/O pins for the SDRAM virtual connection memory (VCRAM)
Bank address pin for the SDRAM virtual connection memory (VCRAM)
DQM (data mask) pin for the SDRAM virtual conection memory (VCRAM)
RAS# pin for the SDRAM virtual connection memory (VCRAM)
CAS# pin for the SDRAM virtual connection memory (VCRAM)
Write enable pin for the SDRAM virtual connection memory (VCRAM)
Common clock pin for both the CRAM and VCRAM memory arrays
Power supply pins
Ground Pins
FIG. 1 BLOCK DIAGRAM 512K X 32 SSRAM / 1M X 64
CADDR0-18
GCLK
CWE#
COE#
512K x 32 SBSRAM
ADDR0-18
CK
GW#
OE#
DQ0-7
DQ8-15
DQ16-23
DQ24-31
CDATA0-31
VCADDR0-10
VCBS
VCDQM
VCRAS#
VCCAS#
VCWE#
ADDR
BA
DQM0#
DQM1#
DQM2#
DQM3#
RAS#
CAS#
WE#
CK
512K x 32 x 2 SDRAM
DQ0-15
DQ16-31
VCDATA0-31
ADDR
BA
DQM0#
DQM1#
DQM2#
DQM3#
RAS#
CAS#
WE#
CK
512K x 32 x 2 SDRAM
DQ0-15
DQ16-31
VCDATA32-63
VCDATA0-63
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
July, 2000
Rev. 0
2
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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