WED9LAPC2C16V8BC 데이터 시트보기 (PDF) - White Electronic Designs => Micro Semi

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WED9LAPC2C16V8BC

512K x 32 SSRAM / 1M x 64 SDRAM

White Electronic Designs => Micro Semi 

White Electronic Designs WED9LAPC2C16V8BC

512K x 32 SSRAM / 1M x 64 SDRAM

EXTERNAL MEMORY SOLUTION FOR LUCENT’S LUCTAPC640 ATM PORT CONTROLLER

FEATURES

 Clock speeds:

 SSRAM: 100 MHz

 SDRAM: 100 MHz

 100% tested to timing requirements of

LUCTAPC640’s memory interface

 Packaging:

 192 pin BGA, 21mm x 21mm

 3.3V Operating supply voltage

 Direct control interface to both the CRAM and

VCRAM ports on the LUCTAPC640

 62% space savings vs. monolithic solution

 Reduced system inductance and capacitance

DESCRIPTION

The WED9LAPC2C16V8BC is a 3.3V, 512K x 32

Synchronous Pipeline SRAM and a 1M x 64 Synchronous

DRAM array packaged in a 21mm x 21mm 192 lead

BGA.

The WED9LAPC2C16V8BC provides the memory

required for the CRAM (Control Memory) and VCRAM

(Virtual Connection Memory) memory ports for Lucent’s

LUCTAPC640 ATM port controller. When used in conjunction

with the WED9LAPC2B16P8BC, which provides memory for

the BRAM (Buffer Memory) and PRAM (Pointer Memory)

memory ports, the entire memory requirement of the

LUCTAPC640 can be met using these 2 BGA devices.

The WED9LAPC2C16V8BC is 100% tested to the timing

requirements of the LUCTAPC640’s memory interface

timing for both Commercial and Industrial temperature

ranges.

PIN CONFIGURATION

PINOUT CRAM AND VCRAM MCM -- TOP VIEW

1

A CADDR

B CWE#

C COE#

D

VSS

E

GCK

2

CADDR

CADDR

CADDR

CADDR

VSS

F

VSS

VCDATA_b

G VCDATA_b VCDATA_b

H VCDATA_b VCDATA_b

J

VCC

VCDATA_b

K VCDATA_b VCDATA_b

L VCDATA_b VCDATA_b

M

VSS

VCDATA_b

N VCDATA_b VCDATA_b

P VCDATA_b VCDATA_b

R

VCC

VCDATA_b

T VCDATA_b VCDATA_b

3

VCC

CDATA

CDATA

CADDR

NC

VCDATA_b

VCDATA_b

VCDATA_b

VCDATA_b

VCDATA_b

VCDATA_b

VCDATA_b

VCDATA_b

VCDATA_b

VCDATA_b

VSS

4

CDATA

CDATA

CDATA

VCC

VCC

5

CDATA

CDATA

CDATA

VCC

6

VSS

CDATA

CDATA

VCC

7

CDATA

CDATA

CDATA

VSS

8

CDATA

CDATA

CDATA

VSS

VCC

VSS

VSS

VSS

VCC

VCC

VCC

VSS

VCDATA_b

VCDATA_b

VCDATA_b

VSS

VCDATA_b

VCBS

VCDQM

VSS

VCC

VCC

VSS

VCADDR0 VCADDR2

VCADDR8 VCADDR1 VCADDR3

VCCAS# VCWE# VCRAS#

9

VCC

CDATA

CDATA

VSS

VCC

VCADDR10

VCADDR4

VCADDR5

10

CDATA

CDATA

CDATA

VCC

11

CDATA

CDATA

CDATA

VCC

12

VSS

CDATA

CDATA

VCC

13

CDATA

CDATA

CDATA

VSS

VSS

14

CDATA

CDATA

CDATA

CADDR

CADDR

15

VCC

CADDR

CADDR

CADDR

CADDR

16

CADDR

CADDR

CADDR

CADDR

CADDR

VSS

VCADDR6

VCADDR7

VCADDR9/AP

VSS

VSS

VCDATA_a

VCC

VCC

CADDR0 CADDR1

VSS

VCC

VCDATA_a VCDATA_a VCDATA_a

VSS

VCDATA_a VCDATA_a VCDATA_a

VSS

VCDATA_a VCDATA_a

VCC

VSS

VCDATA_a VCDATA_a VCDATA_a

VCC

VCDATA_a VCDATA_a VCDATA_a

VCC

VCDATA_a VCDATA_a

VSS

VSS

VCC

VCC

VCDATA_a VCDATA_a

VCDATA_a VCDATA_a VCDATA_a VCDATA_a VCDATA_a

VCDATA_a VCDATA_a VCDATA_a VCDATA_a

VCC

VCDATA_a VCDATA_a

VSS

VCDATA_a VCDATA_a

White Electronic Designs Corp. reserves the right to change products or specifications without notice.

JJuulyly,20200000Rev. 0

RECeOv. #015168

1

White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

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