TE28F008BE-B120 데이터 시트보기 (PDF) - Intel

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TE28F008BE-B120

8-MBIT SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY

Intel 

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8-MBIT SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY

The 28F800 products are available in the 44-lead

PSOP (Plastic Small Outline) package (a

ROM/EPROM-compatible pinout) and the 48-lead

TSOP (Thin Small Outline, 1.2 mm thick) package

as shown in Figures 2, and 3, respectively. The

28F800 is not available in 56-lead TSOP. The

28F008B products are available in the 40-lead

TSOP package as shown in Figure 1.

Refer to DC Characteristics, Section 4.4

(commercial temperature) and Section 4.11

(extended temperature), for complete current and

voltage specifications. Refer to AC Characteristics,

Section 4.5 (commercial temperature) and Section

4.12 (extended temperature), for read, write and

erase performance specifications.

1.3 Applications

The 8-Mbit boot block flash memory family

combines high-density, low-power, high-

performance, cost-effective flash memories with

blocking and hardware protection capabilities. Their

flexibility and versatility reduce costs throughout the

product life cycle. Flash memory is ideal for Just-In-

Time production flow, reducing system inventory

and costs, and eliminating component handling

during the production phase.

When your product is in the end-user’s hands, and

updates or feature enhancements become

necessary, flash memory reduces the update costs

by allowing user-performed code changes instead

of costly product returns or technician calls.

The 8-Mbit boot block flash memory family provides

full-function, blocked flash memories suitable for a

wide range of applications. These applications

include ROM-able applications storage, digital

cellular phone program and data storage,

telecommunication boot/firmware, printer firmware/

font storage and various other embedded

applications where program and data storage are

required.

The 8-Mbit flash memory products are also

excellent design solutions for digital cellular phone

and telecommunication switching applications

requiring very low power consumption, high-

performance, high-density storage capability,

modular software designs, and a small form factor

package. The 8-Mbit’s blocking scheme allows for

easy segmentation of the embedded code with

16 Kbytes of hardware-protected boot code, eight

main blocks of program code and two parameter

blocks of 8 Kbytes each for frequently updated data

storage and diagnostic messages (e.g., phone

numbers, authorization codes).

Intel’s boot block architecture provides a flexible

solution for the different design needs of various

applications. The asymmetrically-blocked memory

map allows the integration of several memory

components into a single flash device. The boot

block provides a secure boot PROM; the parameter

blocks can emulate EEPROM functionality for

parameter store with proper software techniques;

and the main blocks provide code and data storage

with access times fast enough to execute code in

place, decreasing RAM requirements.

SEE NEW DESIGN RECOMMENDATIONS

7

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