SST38VF166-70-4C-EK Просмотр технического описания (PDF) - Silicon Storage Technology

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SST38VF166-70-4C-EK

16 Megabit FlashBank Memory

Silicon Storage Technology 

16 Megabit FlashBank Memory

SST38VF166

Data Sheet

Common Flash Interface (CFI)

The SST38VF166 also contains the CFI information in

each bank, to describe the characteristics of that bank. See

Tables 8 through 16 for the CFI contents for each bank.

Both flash banks use the same information, as each bank

operates the same. The E2 bank contains the applicable

information for that bank.

In order to obtain the CFI information, the CFI memory

space is accessed by using the CFI entry command. For

details, see Table 6 or 7 for software operation and Figures

33, 34, or 35 for timing waveforms.

CFI Mode Exit

In order to return to the standard Read mode, the CFI

mode must be exited. Exit is accomplished by issuing the

CFI exit command, which returns the device to normal

operation. This command may also be used to reset the

device to the Read mode after any inadvertent transient

condition that apparently causes the device to behave

abnormally, e.g., not read correctly. For details, see Table 6

or 7 for software operation and Figures 36, 37, or 38 for tim-

ing waveforms.

CFI is specified for byte wide information. Since the

SST38VF166 is organized word wide, the first byte (2 nib-

bles) of each CFI word is always 00H.

FUNCTIONAL BLOCK DIAGRAM

Charge

Pump &

Vref.

Address Buffer

and Latches

Y - Decoder

X - Decoder

A18 - A0

OE#

BE#1

BE#2

BE#3

WE#

Control Logic

4K x 16

E2 Bank

512K x 16

Flash

Bank 1

512K x 16

Flash

Bank 2

I/O Buffers and

Data Latches

DQ15 - DQ0

327 ILL F02.1

©2001 Silicon Storage Technology, Inc.

7

327-3 2/01

S71065

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