A29L040AL datasheet(5/30 Pages) AMICC

5 / 30 page

A29L040A Series

PRELIMINARY (March, 2005, Version 0.0)

AMIC Technology, Corp.

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 (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 +0.2V. 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 and

OE is -0.5V.

During voltage transitions, A9 and

OE 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.

*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

these

any other

conditions

above

those

indicated

the

operational

sections

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.

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

A0 – A18

I/O0 - I/O7

Read

AIN

DOUT

Write

AIN

DIN

CMOS Standby

VCC

± 0.3 V

High-Z

TTL Standby

High-Z

Output Disable

High-Z

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.

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