A29002/A290021 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.
Ambient Operating Temperature . . . …... .-55°C to + 125°C
Storage Temperature . . . . . . . …. . . . …… -65°C to + 125°C
Ground to VCC . . . . . . . . . . . . . . …... . . …..….-2.0V to 7.0V
Output Voltage (Note 1) . . . .. . . … . ….... . …...-2.0V to 7.0V
A9,
&
(Note 2) …… . . . . . . . . . . -2.0V to 12.5V
RESET
OE
All other pins (Note 1) . . . . . . . . …… . . . . . . . -2.0V to 7.0V
Output Short Circuit Current (Note 3)…... . . . . . . . . . 200mA
Notes:
Operating Ranges
1. Minimum DC voltage on input or I/O pins is -0.5V. During
voltage transitions, inputs may undershoot VSS to -2.0V
for periods of up to 20ns. Maximum DC voltage on output
and I/O pins is VCC +0.5V. During voltage transitions,
outputs may overshoot to VCC +2.0V for periods up to
20ns.
Commercial (C) Devices
Ambient Temperature (TA) . . ….. . . . . . . . . . 0°C to +70°C
VCC Supply Voltages
VCC for ± 10% devices …. . . . . . . . . . . . . . +4.5V to +5.5V
Operating ranges define those limits between which the
functionally of the device is guaranteed.
2. Minimum DC input voltage on A9 pins is -0.5V. During
voltage transitions, A9,
and
may overshoot
RESET
OE
VSS to -2.0V for periods of up to 20ns. Maximum DC
input voltage on A9 and is +12.5V which may
OE
overshoot to 13.5V for periods up to 20ns. (
N/A on A290021)
is
RESET
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. A29002/A290021 Device Bus Operations
Operation
A0 – A17
I/O0 - I/O7
WE
CE
OE
RESET
(N/A A290021)
Read
Write
L
L
H
X
X
H
X
X
H
L
H
AIN
AIN
X
DOUT
DIN
L
H
CMOS Standby
TTL Standby
X
X
H
X
X
High-Z
High-Z
High-Z
High-Z
X
VCC ± 0.5 V
VCC ± 0.5 V
H
L
X
VCC ± 0.5 V
Output Disable
H
L
X
Reset
X
X
X
Temporary Sector Unprotect (Note)
Legend:
VID
X
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: 1. See the "Sector Protection/Unprotection" section and Temporary Sector Unprotect for more information.
2. This function is not available on A290021.
(December, 2010, Version 1.6)
4
AMIC Technology, Corp.
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