A29L008 Просмотр технического описания (PDF) - AMIC Technology
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A29L008 Datasheet PDF : 36 Pages
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A29L008 Series
Absolute Maximum Ratings*
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, OE & RESET (Note 2) . . . . . . . . . . . . -0.5 to +12.5V
All other pins (Note 1) . . . . . . . . . . . . -0.5V to VCC + 0.5V
Output Short Circuit Current (Note 3) . . . . . . . . . 200mA
Notes:
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 +0.5V. During
voltage transitions, input or I/O pins may overshoot to
VCC +2.0V for periods up to 20ns.
2. Minimum DC input voltage on A9, OE and RESET is
-0.5V. During voltage transitions, A9, OE and RESET
may overshoot 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
*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.
Operating Ranges
Commercial (C) Devices
Ambient Temperature (TA) . . . . . . . . . . . . . . 0°C to +70°C
Extended Range Devices
Ambient Temperature (TA) . . . . . . . . . . . . -40°C to +85°C
VCC Supply Voltages
VCC for all devices . . . . . . . . . . . . . . . . . . +2.7V to +3.6V
Operating ranges define those limits between which the
functionally of the device is guaranteed.
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. A29L008 Device Bus Operations
Operation
CE
OE
WE
RESET
A0 – A19
(Note 1)
I/O0 - I/O7
Read
L
L
H
H
AIN
DOUT
Write
L
H
L
H
AIN
DIN
CMOS Standby
VCC ± 0.3 V
X
X
VCC ± 0.3 V
X
High-Z
Output Disable
L
H
H
H
X
High-Z
Hardware Reset
X
X
X
L
X
High-Z
Sector Protect
(See Note 2)
L
H
L
Sector Address,
VID
A6=L, A1=H, A0=L
DIN, DOUT
Sector Unprotect
(See Note 2)
L
H
L
Sector Address,
VID
A6=H, A1=H, A0=L
DIN, DOUT
Temporary Sector
Unprotect
X
X
X
VID
AIN
DIN
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
Notes:
1. Addresses are A19-A0 in word mode (BYTE=VIH), A18: A-1 in byte mode (BYTE=VIL).
2. See the “Sector Protection/Unprotection” section and Temporary Sector Unprotect for more information.
PRELIMINARY (November, 2002, Version 0.0)
5
AMIC Technology, Corp.
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