
28F400BL-T/B, 28F004BL-T/B
The 4-Mbit low power flash products also provide
excellent design solutions for Handy Digital Cellular
Phone applications requiring low voltage supply,
high performance, high density storage capability
coupled with modular software designs, and a small
form factor package (x8-only bus). The 4-Mbit’s
blocking scheme allows for an easy segmentation of
the embedded code with; 16-Kbytes of Hardware-
Protected Boot code, 4 Main Blocks of program
code and 2 Parameter Blocks of 8-Kbytes each for
frequently updatable data storage and diagnostic
messages
codes). Figure 2 is an example of such an applica-
tion with the 28F004BL-T.
(e.g.,
phone
numbers,
authorization
These are a few actual examples of the wide range
of applications for the 4-Mbit low power Boot Block
flash memory family which enable system designers
achieve the best possible product design. Only your
imagination limits the applicability of such a versatile
low power product family.
290450–7
Figure 1. 28F400BL Interface to Intel386
TM
EX Embedded Processor
290450–23
Figure 2. 28F004BL Interface to INTEL 80L188EB Low Voltage 8-bit Embedded Processor
5