AM42DL16X4D Datasheet, PDF (13/61 Pages) SPANSION – Stacked Multi-Chip Package (MCP) Flash Memory and SRAM

PRELIMINARY
Table 2. Device Bus Operations—Flash Byte Mode, CIOf = V_SS
Operation
(Notes 1, 2)
CE#f CE1#s CE2s OE# WE# Addr.
LB#s
(Note 3)
UB#s
(Note 3)
RESET#
WP#/ACC
(Note 4)
DQ7–
DQ0
DQ15–
DQ8
H
X
Read from Flash L
X
L
LH
A_IN
X
X
H
L/H
D_OUT High-Z
H
X
Write to Flash
L
X
HL
L
A_IN
X
X
H
(Note 3)
D_IN
High-Z
Standby
V_CC ±
H
0.3 V _X
X
XX
L
X
X
X
V_CC ±
0.3 V
H
High-Z High-Z
L
X
Output Disable
L
L
H HH
X
H
L/H
High-Z High-Z
X
L
Flash Hardware
Reset
X
H
X
X
XX
L
X
X
X
L
L/H
High-Z High-Z
H
X
SADD,
Sector Protect
(Note 5)
L
X
L
H
L
A6 = L,
A1 = H,
X
A0 = L
X
V_ID
L/H
D_IN
X
H
X
SADD,
Sector Unprotect
(Note 5)
L
X
L
H
L
A6 = L,
A1 = H,
X
A0 = L
X
V_ID
(Note 6)
D_IN
X
Temporary
Sector Unprotect
X
H
X
x
L
XX
A_IN
X
X
V_ID
(Note 6)
D_IN
High-Z
L
L
Read from SRAM H
L
H
LH
A_IN
H
L
H
L
H
L
L
Write to SRAM
H
L
H XL
A_IN
H
L
H
L
H
D_OUT
D_OUT
X
High-Z D_OUT
D_OUT High-Z
D_IN
D_IN
X
High-Z
D_IN
D_IN
High-Z
Legend: L = Logic Low = V_IL, H = Logic High = V_IH, V_ID = 11.5–12.5 V, V_HH = 9.0 ± 0.5 V, X = Don’t Care, SADD = Flash Sector
Address, A_IN = Address In (for Flash Byte Mode, DQ15 = A-1), D_IN = Data In, D_OUT = Data Out
Notes:
1. Other operations except for those indicated in this column are inhibited.
2. Do not apply CE#f = V_IL, CE1#s = V_IL and CE2s = V_IH at the same time.
3. Don’t care or open LB#s or UB#s.
4. If WP#/ACC = V_IL , the boot sectors will be protected. If WP#/ACC = V_IH the boot sectors protection will be removed.
If WP#/ACC = V_ACC (9V), the program time will be reduced by 40%.
5. The sector protect and sector unprotect functions may also be implemented via programming equipment. See the “The autoselect
mode provides manufacturer and device identification, and sector protection verification, through identifier codes output on
DQ7–DQ0. The autoselect codes can be accessed in-system through the command register. Refer to the Autoselect Command
Sequence section for more information.Sector/Sector Block Protection and Unprotection” section.
6. If WP#/ACC = V_IL, the two outermost boot sectors remain protected. If WP#/ACC = V_IH, the two outermost boot sector protection
depends on whether they were last protected or unprotected using the method described in “The autoselect mode provides
manufacturer and device identification, and sector protection verification, through identifier codes output on DQ7–DQ0. The
autoselect codes can be accessed in-system through the command register. Refer to the Autoselect Command Sequence section
for more information.Sector/Sector Block Protection and Unprotection”. If WP#/ACC = V_HH, all sectors will be unprotected.
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Am42DL16x4D
January 9, 2002