AM29LV641GH55RPCI datasheet(12/55 Pages) SPANSION

부품명	AM29LV641GH55RPCI

상세설명	64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O Control

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Am29LV641G

June 14, 2005

ADV ANCE

I N FO RMAT I O N

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 loca-

tion. The register is a latch used to store the com-

mands, 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. Table 1 lists the device bus operations, the in-

puts and control levels they require, and the resulting

output. The following subsections describe each of

these operations in further detail.

Table 1.

Device Bus Operations

Legend: L = Logic Low = V

IL, H = Logic High = VIH, VID = 8.5–12.5 V, VHH = 11.5–12.5 V, X = Don’t Care, SA = Sector Address,

A

IN = Address In, DIN = Data In, DOUT = Data Out

Notes:

1. Addresses are A21:A0. Sector addresses are A21:A15.

2. The sector protect and sector unprotect functions may also be implemented via programming equipment. See the “Sector Group

Protection and Unprotection” section.

3. All sectors are unprotected when shipped from the factory (The SecSi Sector may be factory protected depending on version

ordered.)

4. D

IN or DOUT as required by command sequence, data polling, or sector protect algorithm (see Figure 2).

VersatileI/O

™ (V

IO) Control

The VersatileI/O (V

IO) control allows the host system

to set the voltage levels that the device generates at

its data outputs and the voltages tolerated at its data

inputs to the same voltage level that is asserted on the

V

IO pin. This allows the device to operate in 1.8 V or 3

V system environment as required.

For example, a V

I/O of 1.65–1.95 volts allows for I/O at

the 3 volt level, driving and receiving signals to and

from other 3 V devices on the same bus.

Requirements for Reading Array Data

To read array data from the outputs, the system must

drive the CE# and OE# pins to V

IL. CE# is the power

control and selects the device. OE# is the output con-

trol and gates array data to the output pins. WE#

should remain at V

IH.

The internal state machine is set for reading array data

upon device power-up, or after a hardware reset. This

ensures that no spurious alteration of the memory

content occurs during the power transition. No com-

mand is necessary in this mode to obtain array data.

Standard microprocessor read cycles that assert valid

addresses on the device address inputs produce valid

data on the device data outputs. The device remains

Operation

CE#

OE#

WE#

RESET#

ACC

Addresses

(Note 2)

DQ15–

DQ0

Read

L

H

X

A

IN

D

OUT

Write (Program/Erase)

L

H

L

H

X

AIN

(Note 4)

Accelerated Program

L

H

L

H

V

HH

A

IN

(Note 4)

Standby

VCC ±

0.3 V

XX

VCC ±

0.3 V

H

X

High-Z

Output Disable

L

H

X

High-Z

Reset

X

L

X

High-Z

Sector Group Protect (Note 2)

L

H

L

VID

X

SA, A6 = L,

A1 = H, A0 = L

(Note 4)

Sector Group Unprotect

(Note 2)

LH

L

VID

X

SA, A6 = H,

A1 = H, A0 = L

(Note 4)

Temporary Sector Group

Unprotect

XX

X

V

ID

X

A

IN

(Note 4)

유사한 부품 번호 - AM29LV641GH55RPCI

제조업체	부품명	데이터시트	상세설명
Advanced Micro Devices	AM29LV641GH55RPCI	1Mb / 55P	64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O??Control

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유사한 설명 - AM29LV641GH55RPCI

제조업체	부품명	데이터시트	상세설명
Advanced Micro Devices	AM29LV641G	1Mb / 55P	64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O??Control
	AM29LV640D	1Mb / 57P	64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileI Control
	AM29LV641MH	1Mb / 60P	64 Megabit (4 M x 16-Bit) MirrorBit??3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O??Control
	AM29LV640MU	1Mb / 54P	64 Megabit (4 M x 16-Bit) MirrorBit??3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O??Control
	AM29LV640MU	1Mb / 59P	64 Megabit (4 M x 16-Bit) MirrorBit??3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O??Control
SPANSION	AM29LV641MH	1Mb / 60P	64 Megabit (4 M x 16-Bit) MirrorBit 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O Control
Advanced Micro Devices	AM29LV642D	986Kb / 53P	128 Megabit (8 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O Control
	AM29LV642D	1Mb / 54P	128 Megabit (8 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O??Control
	AM29LV065M	499Kb / 11P	64 Megabit (8 M x 8-Bit) MirrorBit 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O Control
SPANSION	AM29LV640MH	1Mb / 62P	64 Megabit (4 M x 16-Bit/8 M x 8-Bit) MirrorBit 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O Control

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