GS8640V18/32/36T-300/250/200/167

Mode Pin Functions

Mode Name

Burst Order ControlOutput Register ControlPower Down Control

Pin Name

LBOFTZZ

State

LHLH or NCL or NCH

Function

Linear BurstInterleaved BurstFlow ThroughPipelineActiveStandby, IDD = ISB

Note:

There is a pull-up device on the FT pin and a pull-down device on the ZZ pin, so those input pins can be unconnected and the chip will operate in the default states as specified in the above tables.Burst Counter Sequences

Linear Burst Sequence

A[1:0]A[1:0]A[1:0]A[1:0]

1st address2nd address3rd address4th address

00011011

01101100

10110001

11000110

Interleaved Burst Sequence

A[1:0]A[1:0]A[1:0]A[1:0]

1st address2nd address3rd address4th address

00011011

01001110

10110001

11100100

Note:

The burst counter wraps to initial state on the 5th clock.Note:

The burst counter wraps to initial state on the 5th clock.

BPR 1999.05.18