4Mb
SMART 3 BOOT BLOCK FLASH MEMORY
FUNCTIONAL BLOCK DIAGRAM
8
Input
Buffer
BYTE#
1
I/O
Control
Logic
7
16KB Boot Block
18 (19)
9
9
(10)
Input
Buffer
Addr.
A0–A17/(A18)
A9
Buffer/
Latch
8KB Parameter Block
8KB Parameter Block
96KB Main Block
Input
Buffer
A-1
Input Data
Latch/Mux
16
128KB Main Block
X - Decoder/Block Erase Control
Addr.
Power
(Current)
Control
Counter
128KB Main Block
DQ15/(A - 1)
1
DQ8–DQ14
1
128KB Main Block
WP#
CE#
OE#
WE#
RP#
V
CC
V
PP
V
PP
Switch/
Pump
Command
Execution
Logic
State
Machine
Y-
Decoder
7
Y - Select Gates
8
Sense Amplifiers
Write/Erase-Bit
Compare and Verify
DQ0–DQ7
Output
Buffer
DQ15
Status
Register
Identification
Register
7
Output
Buffer
8
Output
Buffer
MUX
8
NOTE:
1. Does not apply to MT28F004B3.
4Mb Smart 3 Boot Block Flash Memory
F45_3.p65 – Rev. 3, Pub. 12/01
3
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2001, Micron Technology, Inc.
MICRON [ MICRON TECHNOLOGY ]
