Cypress Semiconductor CY7C1364C Manual do Utilizador descarregar pdf (Página 10)

CY7C1360V25

CY7C1362V25

CY7C1364V25

PRELIMINARY

Cycle Description

[1, 2, 3]

Next Cycle Add. Used ZZ CE

ADSP ADSC ADV OE DQ Write

Unselected None L X X 1 X 0 X X Hi-Z X

Unselected None L 1 X 0 0 X X X Hi-Z X

Unselected None L X 0 0 0 X X X Hi-Z X

Unselected None L 1 X 0 1 0 X X Hi-Z X

Unselected None L X 0 0 1 0 X X Hi-Z X

Begin Read External L 0 1 0 0 X X X Hi-Z X

Begin Read External L 0 1 0 1 0 X X Hi-Z Read

Continue Read Next L X X X 1 1 0 1 Hi-Z Read

Continue Read Next L X X X 1 1 0 0 DQ Read

Continue Read Next L X X 1 X 1 0 1 Hi-Z Read

Continue Read Next L X X 1 X 1 0 0 DQ Read

Suspend Read Current L X X X 1 1 1 1 Hi-Z Read

Suspend Read Current L X X X 1 1 1 0 DQ Read

Suspend Read Current L X X 1 X 1 1 1 Hi-Z Read

Suspend Read Current L X X 1 X 1 1 0 DQ Read

Begin Write Current L X X X 1 1 1 X Hi-Z Write

Begin Write Current L X X 1 X 1 1 X Hi-Z Write

Begin Write External L 0 1 0 1 0 X X Hi-Z Write

Continue Write Next L X X X 1 1 0 X Hi-Z Write

Continue Write Next L X X 1 X 1 0 X Hi-Z Write

Suspend Write Current L X X X 1 1 1 X Hi-Z Write

Suspend Write Current L X X 1 X 1 1 X Hi-Z Write

ZZ “sleep” None H X X X X X X X Hi-Z X

Note:

1. X = ”don't care,” 1 = HIGH, 0 = LOW.

2. Write is defined by BWE

, BW

, and GW. See Write Cycle Description table.

3. The DQ pins are controlled by the current cycle and the OE

signal. OE is asynchronous and is not sampled with the clock.

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Cypress Semiconductor CY7C1364C Manual do Utilizador Página 10