am42bds640ag Meet Spansion Inc., am42bds640ag Datasheet - Page 45

• Manufacturer Part Number: am42bds640ag
• Description: 64 Megabit 4 M ? 16-bit Cmos 1.8 Volt-only, Simultaneous Operation, Burst Mode Flash Memory And 16 Mbit 1 M ? 16-bit Static Ram Preliminary
• Manufacturer: Meet Spansion Inc.

AC CHARACTERISTICS
Note: Figure assumes 6 wait states for initial access, 40 MHz clock, and synchronous read. The Set Configuration Register
command sequence has been written with A18=0; device will output RDY one cycle before valid data.
44
DQ15-DQ0
A21-A0
AVD#
CE#f
OE#
RDY
CLK
Hi-Z
t
t
AVDS
ACS
t
ACH
Aa
1
t
CES
t
AVD
Figure 15. Burst with RDY Set One Cycle Before Data
2
6 wait cycles for initial access shown.
t
IACC
3
t
ACC
P R E L I M I N A R Y
t
4
OE
Am42BDS640AG
25 ns typ. (40 MHz)
t
RACC
5
6
t
RDYS
D0
t
BDH
D1
t
BACC
D2
D3
November 1, 2002
t
t
CEZ
OEZ
Da + n
Hi-Z
Hi-Z