VSC851-FX 查看數據表（PDF） - Vitesse Semiconductor

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VSC851-FX

1.6 Gb/s 32 X 32 Crosspoint Switch

Vitesse Semiconductor 

VITESSE

SEMICONDUCTOR CORPORATION

1.6 Gb/s 32x32

Crosspoint Switch

Data Sheet

VSC851

Table 2: Configuration, Broadcast, FlowThru Mode.

Parameters

Description

Min Typ Max Units

Conditions

TLSW

LSTROBE pulse width

5

—

—

nS —

TGSW

GSTROBE pulse width

5

—

—

nS —

TGSZ

GSTROBE to Z+/Z- Outputs Delay

1.5

—

5.0

nS —

TLSZ

LSTROBE to Z+/Z- Outputs Delay

2

—

6.0

nS GSTROBE high

TALSSU

A[4:0] to LSTROBE setup time

3.5

—

—

nS —

TALSH

A[4:0] to LSTROBE hold time

1

—

—

nS —

TDLSSU

D[4:0] to LSTROBE setup time

3.5

—

—

nS —

TDLSH

D[4:0] to LSTROBE hold time

1

—

—

nS —

TGLSU

GSTROBE to LSTROBE setup time

2.5

—

—

nS —

TGLH

GSTROBE to LSTROBE hold time

2

—

—

nS —

TBLSSU

BROADCAST to LSTROBE setup time

4

—

—

nS —

TBLSH

BROADCAST to LSTROBE hold time

1

—

—

nS —

TFLSSU

FLOWTHRU to LSTROBE setup time

4

—

—

nS —

TFLSH

FLOWTHRU to LSTROBE hold time

1

—

—

nS —

Figure 2: Configuration Mode Timing

A[0:4]

(Output Address)

LSTROBE

D[0:4]

(Input Address)

GSTROBE

I+ [0:15]

I- [0:15]

Z+ [0:31]

Z- [0:31]

TALSSU

TDLSSU

TALSH

TLSW

TDLSH

TGLSU

TGSW

TGSZ

TLSZ

TLSW

TGLH

TDLY

Page 4

© VITESSE SEMICONDUCTOR CORPORATION

741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896

G52167-0 Rev. 4.1

10/21/99

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