SST34HF1641J-70-4E-L1PE datasheet(21/37 Pages) SST

Part #	SST34HF1641J-70-4E-L1PE

Description	16 Mbit Concurrent SuperFlash 4/8 Mbit PSRAM ComboMemory

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Manufacturer	SST [Silicon Storage Technology, Inc]

Direct Link	http://www.sst.com/

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Data Sheet

16 Mbit Concurrent SuperFlash + 4/8 Mbit PSRAM ComboMemory

SST34HF1641J / SST34HF1681J

21

S71336-00-000

8/06

FIGURE 8: PSRAM Write Cycle Timing Diagram (UBS#, LBS# Controlled)1 x16 PSRAM ONLY

ADDRESSES AMSS3-0

WE#

BES1#

BES2

TBWS

TAWS

TWCS

TWPS

TWRS

TASTS

TBYWS

DQ15-8, DQ7-0

VALID DATA IN

TDSS

TDHS

UBS#, LBS#

1336 F06.0

NOTE 2

Note: 1. If OE# is High during the Write cycle, the outputs will remain at high impedance.

2. Because DIN signals may be in the output state at this time, input signals of reverse polarity must not be applied.

3. AMSS = Most Significant PSRAM Address

AMSS = A17 for SST34HF1641J, and A18 for SST34HF1681J

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