M29W320DT90N6 Micron Technology Inc, M29W320DT90N6 Datasheet - Page 14

• Manufacturer Part Number: M29W320DT90N6
• Manufacturer: Micron Technology Inc

Specifications of M29W320DT90N6

• Cell Type: NOR
• Density: 32Mb
• Access Time (max): 90ns
• Interface Type: Parallel
• Boot Type: Top
• Address Bus: 22/21Bit
• Operating Supply Voltage (typ): 3/3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Program/erase Volt (typ): 2.7 to 3.6/12V
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8/16Bit
• Number Of Words: 4M/2M
• Supply Current: 10mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Not Compliant

2.10
2.11
2.12
2.13
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Ready/Busy Output (RB)
The Ready/Busy pin is an open-drain output that can be used to identify when the device is
performing a Program or Erase operation. During Program or Erase operations Ready/Busy
is Low, V
Erase Suspend mode.
Note that if V
even if RP is at V
After a Hardware Reset, Bus Read and Bus Write operations cannot begin until Ready/Busy
becomes high-impedance. See
The use of an open-drain output allows the Ready/Busy pins from several memories to be
connected to a single pull-up resistor. A Low will then indicate that one, or more, of the
memories is busy.
Byte/Word Organization Select (BYTE)
The Byte/Word Organization Select pin is used to switch between the x8 and x16 Bus
modes of the memory. When Byte/Word Organization Select is Low, V
x8 mode, when it is High, V
V
V
The Command Interface is disabled when the V
Voltage, V
during power up, power down and power surges. If the Program/Erase Controller is
programming or erasing during this time then the operation aborts and the memory contents
being altered will be invalid.
A 0.1µF capacitor should be connected between the V
Ground pin to decouple the current surges from the power supply. The PCB track widths
must be sufficient to carry the currents required during Program and Erase operations, I
V
V
CC
SS
CC
SS
is the reference for all voltage measurements.
provides the power supply for all operations (Read, Program and Erase).
Ground
Supply Voltage
OL
LKO
. Ready/Busy is high-impedance during Read mode, Auto Select mode and
PP
. This prevents Bus Write operations from accidentally damaging the data
/WP is at V
ID
.
IL
IH
, then the 16 KByte outermost boot block will remain protect
, the memory is in x16 mode.
Table 15
and
Figure
CC
Supply Voltage is less than the Lockout
12.
CC
Supply Voltage pin and the V
IL
, the memory is in
SS
CC3
.