MT28C6428P20 Micron Semiconductor Products, Inc., MT28C6428P20 Datasheet - Page 4

• Manufacturer Part Number: MT28C6428P20
• Description: 4 Meg X 16 Asynchronous/page Flash 512K X 16 SRAM Combo Memory
• Manufacturer: Micron Semiconductor Products, Inc.

4 Meg x 16 Asynchronous/Page Flash 512K x 16 SRAM Combo Memory
MT28C6428P20_3.p65 – Rev. 3, Pub. 7/02
A0–A21
F_RST#
F_WE#
F_OE#
F_CE#
DQ0-DQ15
Data Input
I/O Logic
Address
Buffer
Buffer
WSM
Input
CSM
Address Latch
A19
A0
S_CE1#
F_WE#
S_WE#
F_OE#
S_OE#
F_CE#
F_RP#
S_CE2
–
–
A20
A18
Pump Voltage
FLASH FUNCTIONAL BLOCK DIAGRAM
Generators
CNT/WSM
Program/
Register
Address
Erase
Data
4 MEG x 16 ASYNCHRONOUS/PAGE FLASH
BLOCK DIAGRAM
Multiplexer
F_V
Address
S_V
CC
CC
4,096K x 16
512K x 16
FLASH
SRAM
512K x 16 SRAM COMBO MEMORY
4
F_V
Y/Z DEC
Y/Z DEC
X DEC
X DEC
Bank a
Bank b
PP
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Y/Z Gating/Sensing
Y/Z Gating/Sensing
Query/OTP
Bank 1 Blocks
Bank 2 Blocks
PR Lock
F_WP#
F_V
V
DQ0
S_V
S_UB#
S_LB#
CC
SS
Q
SS
–
DQ15
Manufacturer’s ID
Status
Reg.
Multiplexer
Output
Block Lock
Device ID
PR Lock
ID Reg.
Query
OTP
RCR
©2002, Micron Technology, Inc.
ADVANCE
DQ0–DQ15
Output
Buffer