HY29LV320BT-90 datasheet(3/44 Pages) HYNIX

Part #	HY29LV320BT-90

Description	32 Mbit (2M x 16) Low Voltage Flash Memory

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Manufacturer	HYNIX [Hynix Semiconductor]

Direct Link	http://www.skhynix.com/kor/main.do

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3

r1.3/May 02

HY29LV320

BLOCK DIAGRAM

STATE

CONTROL

WE#

CE#

RESET#

COMMAND

REGISTER

A[20:0]

V

CC

DETECTOR

TIMER

ERASE VOLTAGE

GENERATOR AND

SECTOR SWITCHES

PROGRAM

VOLTAGE

GENERATOR

X-DECODER

Y-DECODER

32 Mb FLASH

MEMORY

ARRAY

(67 Sectors)

128-word

FLASH

Security Sector

Y-GATING

DATA LATCH

I/O BUFFERS

I/O CONTROL

RY/BY#

DQ[15:0]

CFI

CONTROL

CFI DATA

MEMORY

A[20:0]

WP#/ACC

OE#

able parts may utilize the Secured Sector as bo-

nus space, reading and writing like any other Flash

sector, or may permanently lock their own code

there.

The WP#/ACC pin provides two functions. The

Write Protect function provides a hardware method

of protecting the boot sectors without using a high

voltage. The Accelerate function speeds up pro-

gramming operations, and is intended primarily to

allow faster manufacturing throughput.

Two power-saving features are embodied in the

HY29LV320. When addresses have been stable

for a specified amount of time, the device enters

the automatic sleep mode. The host can also place

the device into the standby mode. Power con-

sumption is greatly reduced in both these modes.

Common Flash Memory Interface (CFI)

To make Flash memories interchangeable and to

encourage adoption of new Flash technologies,

major Flash memory suppliers developed a flex-

ible method of identifying Flash memory sizes and

configurations in which all necessary Flash device

parameters are stored directly on the device.

Parameters stored include memory size, byte/word

configuration, sector configuration, necessary volt-

ages and timing information. This allows one set

of software drivers to identify and use a variety of

different, current and future Flash products. The

standard which details the software interface nec-

essary to access the device to identify it and to

determine its characteristics is the Common Flash

Memory Interface (CFI) Specification.

The

HY29LV320 is fully compliant with this specification.

Similar Part No. - HY29LV320BT-90

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