64WQ datasheet(32/46 Pages) NUMONYX

32 / 46 page

32WQ and 64WQ Family with Asynchronous RAM

Datasheet

November 2007

Order Number: 251407-13

32WQ and 64WQ Family with Asynchronous RAM

Read

Flash#1 and #2 must be in High-Z

PSRAM

DOUT

1, 5, 2

Write

PSRAM

DIN

5, 2

Output

Disable

Any flash mode allowed

HHH

PSRAM

High-Z

6, 2

Standby

PSRAM

High-Z

6, 2

Deep

Power-

Down

PSRAM

High-Z

6, 9, 2

Notes:

For asynchronous read operation, all die may be simultaneously selected, but may not simultaneously drive the memory

bus. For synchronous burst-mode reads, only two die (one flash and the PSRAM) may be simultaneously selected.

WAIT is only valid during synchronous flash reads. WAIT is driven if F-CE# is asserted.

F1-CE# for Flash Die#1, F2-CE# for Flash Die#2. F1-OE# is for Flash Die#1, F2-OE# for Flash Die#2.

For either flash die, F[2:1]-OE# and F-WE# should never be asserted simultaneously. If done so on a particular flash

die, F[2:1]-OE# will override F-WE#.

For PSRAM, R-OE# and R-WE# should never be asserted simultaneously.

X can be VIL or VIH for inputs, VPPL,VPPH or VPPLK for F-VPP.

Flash CFI query and status register accesses use D[7:0] only, all other reads use D[15:0].

Refer to W30/W18 datasheet for Valid DIN during flash writes.

Deep power-down is not applicable to 38F2020W0ZTQ1, 38F2020W0ZBQ1, 38F2030W0YTQ1, 38F2030W0YBQ1,

38F2030W0ZTQ2, 38F2030W0ZBQ2, 38F1030W0ZTQ0, 38F1030W0ZBQ0.

Table 16: Flash + PSRAM Bus Operations

Mode

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