AM41DL3228GB40IS AMD [Advanced Micro Devices], AM41DL3228GB40IS Datasheet - Page 61

• Manufacturer Part Number: AM41DL3228GB40IS
• Description: 32 Megabit (4 M x 8-Bit/2 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory and 8 Mbit (1 M x 8-Bit/512 K x 16-Bit) Static RAM
• Manufacturer: AMD [Advanced Micro Devices]

AC CHARACTERISTICS
Notes:
1. UB#s and LB#s controlled, CIOs must be high.
2. t
3. t
4. t
5. A write occurs during the overlap (t
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asserting UB#s or LB#s for a single byte operation or simultaneously asserting UB#s and LB#s for a double byte operation. A
write ends at the earliest transition when CE1#s goes high and WE# goes high. The t
to the end of write.
CW
WR
AS
is measured from the address valid to the beginning of write.
is measured from CE1#s going low to the end of write.
is measured from the end of write to the address change. t
CE1#s
CE2s
Address
UB#s, LB#s
WE#
Data In
Data Out
Figure 32. SRAM Write Cycle—UB#s and LB#s Control
WP
) of low CE#1 and low WE#. A write begins when CE1#s goes low and WE# goes low when
High-Z
(See Note 4)
t
P R E L I M I N A R Y
AS
Am41DL32x8G
(See Note 2)
WR
t
CW
t
t
AW
WC
applied in case a write ends as CE1#s or WE# going high.
(See Note 5)
t
t
CW
(See Note 2)
BW
t
WP
t
DW
Data Valid
WP
t
WR
is measured from the beginning of write
t
DH
(See Note 3)
High-Z
September 5, 2002