A29L040A Series
Absolute Maximum Ratings*
*Comments
Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to this device.
These are stress ratings only. Functional operation of
this device at these or any other conditions above
those indicated in the operational sections of these
specification is not implied or intended. Exposure to
the absolute maximum rating conditions for extended periods
may affect device reliability.
Storage Temperature Plastic Packages . . . . . .0°C to + 70°C
. . . . . . . . . . . . . . . . . . . . . …... for -U series: -40°C to +85°C
Ambient Temperature with Power Applied . . . 0°C to + 70°C
. . . . . . . . . . . . . . . . . . . . . . for -U series: -40°C to +85°C
Voltage with Respect to Ground
VCC (Note 1) . . . . . . . . . . . . . . . . . . . . . . ….. -0.5V to +4.0V
A9 &
(Note 2) . . . . . . . . . . . . . . . . . . . … -0.5 to +12.5V
OE
All other pins (Note 1) . . . . . . . . . . . .... -0.5V to VCC + 0.5V
Output Short Circuit Current (Note 3) . . . . . . . . . … 200mA
Operating Ranges
Notes:
Commercial (C) Devices
Ambient Temperature (TA) . . . . . . . . . . ……. . . 0°C to +70°C
Extended Range Devices
1. Minimum DC voltage on input or I/O pins is -0.5V. During
voltage transitions, input or I/O pins may undershoot VSS
to -2.0V for periods of up to 20ns. Maximum DC voltage
on input and I/O pins is VCC +0.2V. During voltage
transitions, input or I/O pins may overshoot to VCC +2.0V
for periods up to 20ns.
Ambient Temperature (TA) . . . . . . . . . . . ….. -40°C to +85°C
VCC Supply Voltages
2. Minimum DC input voltage on A9 and
is -0.5V.
VCC for all devices . . . . . . . . . . . . . . . . . . +2.7V to +3.6V
Operating ranges define those limits between which the
functionally of the device is guaranteed.
OE
During voltage transitions, A9 and
may overshoot
OE
VSS to -2.0V for periods of up to 20ns. Maximum DC
input voltage on A9 is +12.5V which may overshoot to
14.0V for periods up to 20ns.
3. No more than one output is shorted at a time. Duration of
the short circuit should not be greater than one second.
Device Bus Operations
This section describes the requirements and use of the
device bus operations, which are initiated through the
internal command register. The command register itself does
not occupy any addressable memory location. The register is
composed of latches that store the commands, along with
the address and data information needed to execute the
command. The contents of the register serve as inputs to the
internal state machine. The state machine outputs dictate the
function of the device. The appropriate device bus operations
table lists the inputs and control levels required, and the
resulting output. The following subsections describe each of
these operations in further detail.
Table 1. A29L040A Device Bus Operations
Operation
I/O0 - I/O7
CE
OE
WE
A0 – A18
Read
L
L
H
AIN
DOUT
DIN
Write
L
H
X
X
H
L
X
X
H
AIN
X
CMOS Standby
TTL Standby
Output Disable
VCC ± 0.3 V
High-Z
High-Z
High-Z
H
L
X
X
Legend:
L = Logic Low = VIL, H = Logic High = VIH, VID = 12.0 ± 0.5V, X = Don't Care, DIN = Data In, DOUT = Data Out, AIN = Address In
Note: See the "Sector Protection/Unprotection" section, for more information.
PRELIMINARY (March, 2005, Version 0.0)
4
AMIC Technology, Corp.
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