JS48F4400PCZ00 datasheet(7/102 Pages) NUMONYX

7 / 102 page

November 2007

Datasheet

Order Number: 290701-18

Numonyx™ Wireless Flash Memory (W18)

1.0

Introduction

This datasheet contains information about the Numonyx™ Wireless Flash Memory

(W18) device family. This section describes nomenclature used in the datasheet.

Section 2.0 provides an overview of the W18 flash memory device. Section 6.0,

Section 7.0, and Section 8.0 describe the electrical specifications for extended

temperature product offerings. Ordering information can be found in Section C.

The Numonyx™ Wireless Flash Memory (W18) device with flexible multi-partition dual-

operation architecture, provides high-performance Asynchronous and Synchronous

Burst reads. It is an ideal memory for low-voltage burst CPUs. Combining high read

performance with flash memory intrinsic non-volatility, the W18 device eliminates the

traditional system-performance paradigm of shadowing redundant code memory from

slow nonvolatile storage to faster execution memory. It reduces total memory

requirement that increases reliability and reduces overall system power consumption

and cost. The W18 device’s flexible multi-partition architecture allows program or erase

to occur in one partition while reading from another partition. This allows for higher

data write throughput compared to single-partition architectures and designers can

choose code and data partition sizes. The dual-operation architecture allows two

processors to interleave code operations while program and erase operations take place

in the background.

1.1

Nomenclature

Table 1:

Acronyms

APS

Automatic Power Savings

BBA

Block Base Address

CFI

Common Flash Interface

CUI

Command User Interface

Don’t Use

EFP

Enhanced Factory Programming

FDI

Flash Data Integrator

No Connect

OTP

One-Time Programmable

PBA

Partition Base Address

RCR

Read Configuration Register

RWE

Read-While-Erase

RWW

Read-While-Write

SCSP

Stacked Chip Scale Package

SRD

Status Register Data

VF BGA

Very-thin, Fine-pitch, Ball Grid Array

WSM

Write State Machine

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