m28w640fc Numonyx, m28w640fc Datasheet - Page 15

• Manufacturer Part Number: m28w640fc
• Description: 64 Mbit 4mbx16, Boot Block 3v Supply Flash Memory
• Manufacturer: Numonyx

M28W640FCT, M28W640FCB
3.5
3.6
Automatic Standby
Automatic Standby provides a low power consumption state during Read mode. Following a
read operation, the device enters Automatic Standby after 150ns of bus inactivity even if
Chip Enable is Low, V
will still output data if a bus Read operation is in progress.
Reset
During Reset mode when Output Enable is Low, V
outputs are high impedance. The memory is in Reset mode when Reset is at V
consumption is reduced to the Standby level, independently from the Chip Enable, Output
Enable or Write Enable inputs. If Reset is pulled to V
operation is aborted and the memory content is no longer valid.
Table 2.
1. X = V
Bus Read
Bus Write
Output Disable
Standby
Reset
Operation
IL
or V
IH
Bus operations
, V
PPH
V
V
V
V
E
X
= 12V ± 5%
IH
IL
IL
IL
IL
, and the supply current is reduced to I
V
V
V
G
X
X
(1)
IH
IH
IL
V
V
V
W
X
X
IH
IH
IL
V
V
V
V
RP
V
IH
IH
IH
IH
IL
IL
, the memory is deselected and the
SS
during a Program or Erase, this
WP
X
X
X
X
X
DD1
V
Don't Care
Don't Care
Don't Care
Don't Care
. The data Inputs/Outputs
DD
V
or V
PP
PPH
Bus operations
IL
Data Output
. The power
DQ0-DQ15
Data Input
Hi-Z
Hi-Z
Hi-Z
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