S29AS008J70BFI030 Spansion Inc., S29AS008J70BFI030 Datasheet - Page 22

• Manufacturer Part Number: S29AS008J70BFI030
• Description: IC 8M FLASH MEMORY
• Manufacturer: Spansion Inc.

Specifications of S29AS008J70BFI030

• Cell Type: NOR
• Density: 8Mb
• Access Time (max): 70ns
• Interface Type: Parallel
• Boot Type: Bottom/Top
• Address Bus: 20/19Bit
• Operating Supply Voltage (typ): 1.8V
• Operating Temp Range: -40C to 85C
• Package Type: FBGA
• Program/erase Volt (typ): 1.65 to 1.95V
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 1.65V
• Operating Supply Voltage (max): 1.95V
• Word Size: 8/16Bit
• Number Of Words: 1M/512K
• Supply Current: 12mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Compliant

7.14
22
7.14.1
7.14.2
7.14.3
7.14.4
Hardware Data Protection
Low V
Write Pulse Glitch Protection
Logical Inhibit
Power-Up Write Inhibit
The command sequence requirement of unlock cycles for programming or erasing provides data protection
against inadvertent writes (refer to
hardware data protection measures prevent accidental erasure or programming, which might otherwise be
caused by spurious system level signals during V
noise.
When V
power-up and power-down. The command register and all internal program/erase circuits are disabled, and
the device resets. Subsequent writes are ignored until V
proper signals to the control pins to prevent unintentional writes when V
Noise pulses of less than 5 ns (typical) on OE#, CE# or WE# do not initiate a write cycle.
Write cycles are inhibited by holding any one of OE# = V
CE# and WE# must be a logical zero (V
If WE# = CE# = V
edge of WE#. The internal state machine is automatically reset to reading array data on power-up.
CC
CC
Write Inhibit
is less than V
IL
and OE# = V
LKO
, the device does not accept any write cycles. This protects data during V
IH
Table 11.1 on page 33
during power up, the device does not accept commands on the rising
S29AS008J
IL
) while OE# is a logical one (V
D a t a
CC
power-up and power-down transitions, or from system
S h e e t
CC
IL
, CE# = V
for command definitions). In addition, the following
is greater than V
IH
or WE# = V
CC
IH
).
LKO
is greater than V
S29AS008J_00_08 July 16, 2009
. The system must provide the
IH
. To initiate a write cycle,
LKO
.
CC