MT28F002B3 데이터 시트보기 (PDF) - Micron Technology
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MT28F002B3 Datasheet PDF : 31 Pages
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2Mb
SMART 3 BOOT BLOCK FLASH MEMORY
TRUTH TABLE (MT28F200B3)1
FUNCTION
RP# CE# OE# WE# WP# BYTE# A0 A9 VPP DQ0-DQ7 DQ8-DQ14 DQ15/A-1
Standby
H H X X X X X X X High-Z High-Z High-Z
RESET
L X X X X X X X X High-Z High-Z High-Z
READ
READ (word mode)
H L L H X H X X X Data-Out Data-Out Data-Out
READ (byte mode)
HL
L H X L X X X Data-Out High-Z
A-1
Output Disable
H L H H X X X X X High-Z High-Z High-Z
WRITE/ERASE (EXCEPT BOOT BLOCK)2
ERASE SETUP
ERASE CONFIRM3
H L H L X X XX X
20H
X
X
H L H L X X X X VPPH D0H
X
X
WRITE SETUP
WRITE (word mode)4
WRITE (byte mode)4
READ ARRAY5
WRITE/ERASE (BOOT BLOCK)2, 7
H L H L X X X X X 10H/40H
X
X
H L H L X H X X VPPH Data-In Data-In Data-In
H L H L X L X X VPPH Data-In
X
A-1
H L H L X X XX X
FFH
X
X
ERASE SETUP
ERASE CONFIRM3
ERASE CONFIRM3, 6
H L H L X X XX X
20H
X
X
VHH L
H
L X X X X VPPH D0H
X
X
H L H L H X X X VPPH D0H
X
X
WRITE SETUP
H L H L X X X X X 10H/40H
X
X
WRITE (word mode)4
WRITE (word mode)4, 6
WRITE (byte mode)4
WRITE (byte mode)4, 6
READ ARRAY5
VHH L H L X H X X VPPH Data-In Data-In Data-In
H L H L H H X X VPPH Data-In Data-In Data-In
VHH L
H
L X L X X VPPH Data-In
X
A-1
H L H L H L X X VPPH Data-In
X
A-1
H L H L X X XX X
FFH
X
X
DEVICE IDENTIFICATION8, 9
Manufacturer Compatibility
(word mode)10
HL
L H X H L VID X
89H
00H
–
Manufacturer Compatibility
(byte mode)
HL
L H X L L VID X
89H High-Z
X
Device (word mode, top boot)10
HL
L H X H H VID X
74H
22H
–
Device (byte mode, top boot)
Device (word mode, bottom boot) 10
HL
L H X L H VID X
74H High-Z
X
HL
L H X H H VID X
75H
22H
–
Device (byte mode, bottom boot)
HL
L
H X L H VID X
75H High-Z
X
NOTE: 1. L = VIL (LOW), H = VIH (HIGH), X = VIL or VIH (“Don’t Care”).
2. VPPH = VPPH1 (3.3V), VPPH2 (5V) or VPPH3 (12V).
3. Operation must be preceded by ERASE SETUP command.
4. Operation must be preceded by WRITE SETUP command.
5. The READ ARRAY command must be issued before reading the array after writing or erasing.
6. When WP# = VIH, RP# may be at VIH or VHH.
7. VHH = 12V.
8. VID = 12V; may also be read by issuing the IDENTIFY DEVICE command.
9. A1-A8, A10-A16 = VIL.
10. Value reflects DQ8-DQ15.
2Mb Smart 3 Boot Block Flash Memory
F48.p65 – Rev. 1/00
5
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2000, Micron Technology, Inc.
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