128Mb, 64Mb, 32Mb
Q-FLASH MEMORY
FUNCTIONAL BLOCK DIAGRAM
(128Mb)
Input
Buffer
I/O
Control
Logic
128KB Memory Block (0)
128KB Memory Block (1)
128KB Memory Block (2)
Addr.
A0–A23
Buffer/
Latch
X - Decoder/Block Erase Control
Power
(Current)
Control
Addr.
Counter
Write
Buffer
DQ0–DQ15
128KB Memory Block (125)
128KB Memory Block (126)
128KB Memory Block (127)
CE0
CE1
CE2
OE#
WE#
RP#
V
CC
STS
V
PEN
CE Logic
Command
Execution
Logic
State
Machine
Y-
Decoder
Y - Select Gates
Sense Amplifiers
Write/Erase-Bit
Compare and Verify
V
PP
Switch/
Pump
Status
Register
Identification
Register
Query
Output
Buffer
FUNCTIONAL BLOCK DIAGRAM
(64Mb)
Input
Buffer
I/O
Control
Logic
128KB Memory Block (0)
128KB Memory Block (1)
128KB Memory Block (2)
Addr.
A0–A22
Buffer/
Latch
X - Decoder/Block Erase Control
Power
(Current)
Control
Addr.
Counter
Write
Buffer
DQ0–DQ15
128KB Memory Block (61)
128KB Memory Block (62)
128KB Memory Block (63)
CE0
CE1
CE2
OE#
WE#
RP#
V
CC
STS
V
PEN
CE Logic
Command
Execution
Logic
State
Machine
Y-
Decoder
Y - Select Gates
Sense Amplifiers
Write/Erase-Bit
Compare and Verify
V
PP
Switch/
Pump
Status
Register
Identification
Register
Query
Output
Buffer
128Mb, 64Mb, 32Mb Q-Flash Memory
MT28F640J3_7.p65 – Rev. 6, Pub. 8/02
4
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2002, Micron Technology, Inc.
MICRON [ MICRON TECHNOLOGY ]
