am42bds6408h Meet Spansion Inc., am42bds6408h Datasheet - Page 17

• Manufacturer Part Number: am42bds6408h
• Description: Cmos 1.8 Volt-only Simultaneous Read/write, Burst Mode Flash Memory, And 8 Mbit 512 K X 16-bit Sram
• Manufacturer: Meet Spansion Inc.

“bank address” is the address bits required to uniquely
select a bank. Similarly, a “sector address” is the
address bits required to uniquely select a sector.
I
represents the active current specification for the write
mode. The AC Characteristics section contains timing
specification tables and timing diagrams for write oper-
ations.
Accelerated Program Operation
The device offers accelerated program operations
through the ACC function. ACC is primarily intended to
allow faster manufacturing throughput at the factory.
If the system asserts V
matically enters the aforementioned Unlock Bypass
October 23, 2003
CC2
in the
“DC Characteristics” section on page 49
HH
on this input, the device auto-
A D V A N C E
Am42BDS6408H
I N F O R M A T I O N
mode and uses the higher voltage on the input to
reduce the time required for program operations. The
system would use a two-cycle program command
sequence as required by the Unlock Bypass mode.
Removing V
to normal operation. Note that sectors must be
unlocked prior to raising ACC to V
ACC pin must not be at V
accelerated programming, or device damage may
result. In addition, the ACC pin must not be left floating
or unconnected; inconsistent behavior of the device
may result .
When at V
V
IH
for all other conditions.
IL
, ACC locks all sectors. ACC should be at
HH
from the ACC input returns the device
HH
for operations other than
HH
. Note that the
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