AM29BDS640G SPANSION [SPANSION], AM29BDS640G Datasheet - Page 55

• Manufacturer Part Number: AM29BDS640G
• Description: 64 Megabit (4 M x 16-Bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory
• Manufacturer: SPANSION [SPANSION]

AC Characteristics
Notes:
1. Figure shows total number of wait states set to seven cycles. The total number of wait states can be programmed
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. This waveform represents a synchronous burst mode, the device will also operate in reduced wait-state
October 1, 2003 25903C1
DQ15-DQ0
from two cycles to seven cycles. Clock is set for active rising edge.
handshaking under a CLK synchronous burst mode.
A21-A0
AVD#
CE#
OE#
RDY
CLK
Hi-Z
t
AAS
Aa
t
AVC
t
CAS
t
AVD
t
AAH
Figure 16. Reduced Wait-State Handshaking Burst
1
t
OE
P r e l i m i n a r y
Mode Read Starting at an Even Address
2
7 cycles for initial access shown.
t
IACC
3
Am29BDS640G
t
ACC
4
5
6
t
RACC
7
t
RDYS
Da
t
BDH
Da + 1
t
BACC
Da + n
t
t
CEZ
OEZ
Hi-Z
Hi-Z
53