am42bds640ag Meet Spansion Inc., am42bds640ag Datasheet - Page 43

• 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
Notes:
1. Figure shows total number of wait states set to four cycles. The total number of wait states can be programmed from two
2. If any burst address occurs at a 64-word boundary, one additional clock cycle is inserted, and is indicated by RDY.
3. The device is in synchronous mode.
4. A17 = 0.
42
DQ15-DQ0
cycles to seven cycles. Clock is set for active falling edge.
A21-A0
AVD#
CE#f
RDY
CLK
OE#
t
Hi-Z
ACS
t
AVC
t
ACH
Aa
1
t
CES
Figure 12. CLK Synchronous Burst Mode Read
t
AVD
2
4 cycles for initial access shown.
t
OE
t
P R E L I M I N A R Y
ACC
(Falling Active Clock)
t
IACC
3
Am42BDS640AG
t
RACC
4
t
RDYS
Da
5
t
BDH
Da + 1
t
BACC
t
t
CEZ
OEZ
Da + n
November 1, 2002
Hi-Z
Hi-Z