Datasheet > A29801B

A29801B

更新时间： 2024-09-18 00:55:27

品牌	Logo	应用领域
联笙电子 - AMICC		/
页数	文件大小	规格书
40页	489K
描述
1M X 8 Bit / 512K X 16 Bit CMOS 5.0 Volt-only, Boot Sector Flash Memory

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A29801B 数据手册

A29801B 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 …... -65°C to +150°C

Ambient Temperature with Power Applied... -55°C to +125°C

Voltage with Respect to Ground

VCC (Note 1) …………………………………… -2.0V to +6.5V

A9,

(Note 2) ………………… -2.0V to +11.5V

RESET

All other pins (Note 1) …………….……………. -2.0V to 6.5V

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, 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 +1.5V

for periods up to 20ns.

Commercial Devices

Ambient Temperature (T^A) ……………………… 0°C to +70°C

Extended Range Devices

Ambient Temperature (TA) …………………… -40°C to +85°C

2. Minimum DC input voltage on A9,

and

RESET

and

VCC Supply Voltages

VCC for all devices …………………………… +4.5V to +5.5V

Operating ranges define those limits between which the

functionally of the device is guaranteed.

0.5V. During voltage transitions, A9,

RESET

may overshoot VSS to -2.0V for periods of up to 20ns.

Maximum DC input voltage on A9 is +11.5V which may

overshoot to 12.5V 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

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.

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

Table 1. A29801B Device Bus Operations

Operation

A0 – A18

(Note 1)

I/O0 - I/O7

I/O8 - I/O15

=VIH

RESET

=VIL

BYTE

Read

Write

AIN

DOUT

DIN

DOUT

I/O8~I/O14=High-Z

I/O¹⁵=A-1

DIN

I/O8~I/O14=High-Z

I/O¹⁵=A-1

CMOS Standby

High-Z

VCC ±

0.3 V

VCC ±

0.3 V

Output Disable

Hardware Reset

High-Z

D^IN

High-Z

Sector Protect

(See Note 2)

V^ID

Sector Address,

A6=L, A1=H, A0=L

Sector Unprotect

(See Note 2)

V^ID

Sector Address,

A6=H, A1=H, A0=L

D^IN

Temporary Sector

Unprotect

AIN

DIN

Legend:

L = Logic Low = V^IL, H = Logic High = VIH, VID = 10.5 ± 1.0V, X = Don't Care, DIN = Data In, DOUT = Data Out, AIN = Address In

Notes:

1. Addresses are A18:A0 in word mode (

2. See the “Sector Protection/Unprotection” section and Temporary Sector Unprotect for more information.

=VIH), A18: A in byte mode (

=VIL).

BYTE

-1

PRELIMINARY (June, 2016, Version 0.0)

AMIC Technology, Corp.

1...3 4 567 8 9...40

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