ID242 Datasheet, PDF (5/33 Pages) Sharp Electrionic Components – Flash Memory Card

SHARP
ID242 SERIES PRODUCT OVERVIEW
4
3. Block Diagram
,r ^D<15:0>
A<25:0>
REG#
CEl# ,
1 CE2#
1 _{WE# ,}
OE#
RDpSYk
II,t t’ ^RESET,
Control
:A’ +_{I t4} ^Logic
VPPX
vcc
cl Flash Memory
Data
Add
CE#
RP#
WE#
RY/RY#
OE#
T
VPP2
vcc
II,
t
WP
VPPl
vcc
t
t
Flash Memory
Data *I
* CE#
Add +-
+ WE#
RP# --
+ OE#
RYrBY# --(
VPPl
vcc
t
t
Flash Memory
+ CE#
+ WE#
+ OE#
Data c =
Add + -
RP# --
RYiBY# +’
=rLc
VPPl
b
VPP2
b
. CDl#, CDL%
.
II.
I
,
I
I
:
VPP2
vcc _{i iI i}
vpp1
vcc
II I
II
t
I
:lash Memory
Data 4
Add + - 4
I
RY/BY#
OE#
I
I _{__*1 OE#}
RP# --
RY/BY# -
I
I
,
I
I
I
I
I
*
I
I
I
I
EEPROM
I
I
I
,
-
CE#
Data M
I
I
b WE#
I
I
*
I
-
OE#
Add v
I
I
9
I
I
I
I
Figure 1. Block Giagrarn