am49lv128bm Meet Spansion Inc., am49lv128bm Datasheet - Page 72

• Manufacturer Part Number: am49lv128bm
• Description: Stacked Multi-chip Package Mcp ,128 Megabit 8 M ? 16-bit ,uniform Sector Flash Memory And 32 Mbit 2 M ? 16-bit Pseudo-static Ram With Page Mode Featuring Mirrorbit Technology,supplemental Datasheet
• Manufacturer: Meet Spansion Inc.

TIMING DIAGRAMS
Note: CE2 must be High for Write Cycle.
Note: CE2 must be High for Write Cycle.
70
DQ8-DQ15
DQ0-DQ7
ADDRESS
DQ DQ15
DQ0-DQ7
(Input)
(Input)
ADDRESS
CE1#
WE#
UB#
8-
LB#
(Input)
(Input)
CE1#
WE#
UB#
LB#
Low
Figure 36. Write Timing #3-3 (WE#/LB#/UB# Byte Write Control)
Figure 37. Write Timing #3-4 (WE#/LB#/UB# Byte Write Control)
Low
t
BS
t
AS
t
AS
t
AS
ADDRESS VALID
ADDRESS VALID
t
VALID DATA INPUT
BW
t
WC
t
BW
t
t
WC
BWO
DATA INPUT
t
t
BW
t
DS
DS
DATA INPUT
VALID
t
DS
Am49LV128BM
VALID
t
t
DH
t
DH
BR
t
BR
t
DH
t
BR
t
BH
t
AS
t
AS
t
t
BS
AS
ADDRESS VALID
ADDRESS VALID
t
t
VALID DATA INPUT
WC
BW
t
BW
t
WC
t
DATA INPUT
t
BWO
t
BW
t
DS
DS
DATA INPUT
VALID
t
DS
VALID
t
BH
t
t
t
DH
DH
BR
t
t
BR
t
DH
BR
June 17, 2004