MT28F004B3 Micron Semiconductor Products, Inc., MT28F004B3 Datasheet - Page 3

• Manufacturer Part Number: MT28F004B3
• Description: 4Mb Smart 3 Boot Block Flash Memory, 44-pin Sop, 48-pin Tsop I, 40-pin Tsop I, 0.18um Process Technology
• Manufacturer: Micron Semiconductor Products, Inc.

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