am42bds6408h Meet Spansion Inc., am42bds6408h Datasheet - Page 57

• Manufacturer Part Number: am42bds6408h
• Description: Cmos 1.8 Volt-only Simultaneous Read/write, Burst Mode Flash Memory, And 8 Mbit 512 K X 16-bit Sram
• Manufacturer: Meet Spansion Inc.

AC CHARACTERISTICS
Notes:
1. Figure shows total number of wait states set to seven cycles. The total number of wait states can be programmed from two
2. If any burst address occurs at a 64-word boundary, two additional clock cycle are inserted, and is indicated by RDY.
3. The device is in synchronous mode.
Addresses
Note: Figure assumes 7 wait states for initial access and automatic detect synchronous read. D0–D7 in data waveform indicate
the order of data within a given 8-word address range, from lowest to highest. Starting address in figure is the 7th address in
range (A6). See “Requirements for Synchronous (Burst) Read Operation”. The Set Configuration Register command sequence
has been written with A18=1; device will output RDY with valid data.
October 23, 2003
Addresses
cycles to seven cycles. Clock is set for active rising edge.
AVD#
Data
CE#
CLK
OE#
RDY
AVD#
Data
RDY
CE#
CLK
OE#
t
Hi-Z
t
AVC
ACS
Hi-Z
t
CR
t
t
t
CR
ACH
AAS
A6
1
Aa
t
t
AVC
t
CES
CAS
t
AVD
t
AVD
t
2
AAH
Figure 16. 8-word Linear Burst with Wrap Around
1
t
OE
7 cycles for initial access shown.
A D V A N C E
t
Figure 15. Synchronous Burst Mode Read
OE
3
7 cycles for initial access shown.
2
t
IACC
t
ACC
t
IACC
4
3
Am42BDS6408H
t
ACC
5
I N F O R M A T I O N
4
6
5
t
RACC
7
t
RDYS
6
D6
t
t
RACC
BDH
D7
7
t
RDYS
t
BACC
Da
D0
t
BDH
Da + 1
t
D1
BACC
D5
Da + n
t
t
CEZ
OEZ
D6
Hi-Z
Hi-Z
55