AM42BDS640AG Datasheet, PDF (51/72 Pages) Advanced Micro Devices – 64 Megabit (4 M x 16-Bit) CMOS 1.8 Volt-only, Simultaneous Operation, Burst Mode Flash Memory and 16 Mbit (1 M x 16-Bit) Static RAM

PRELIMINARY
AC CHARACTERISTICS
Erase/Program Operations
Parameter
JEDEC
Standard Description
All Speed
Options Unit
t_AVAV
t_AVWL
t_WC
Write Cycle Time (Note 1)
t_AS
Address Setup Time ^Synchronous
(Note 2)
Asynchronous
Min
80
ns
5
Min
ns
0
t_WLAX
t_AH
Address Hold Time
(Note 2)
Synchronous
Asynchronous
7
Min
ns
45
t_DVWH
t_WHDX
t_GHWL
t_WHEH
t_WLWH
t_WHWL
t_WHWH1
t_WHWH1
t_WHWH2
t_ACS
t_ACH
t_DS
t_DH
t_GHWL
t_CAS
t_CH
t_WP
t_WPH
t_SR/W
t_WHWH1
t_WHWH1
t_WHWH2
Address Setup Time to CLK (Note 2)
Address Hold Time to CLK (Note 2)
Data Setup Time
Data Hold Time
Read Recovery Time Before Write
CE# Setup Time to AVD#
CE# Hold Time
Write Pulse Width
Write Pulse Width High
Latency Between Read and Write Operations
Programming Operation (Note 3)
Accelerated Programming Operation (Note 3)
Sector Erase Operation (Notes 3, 4)
Chip Erase Operation (Notes 3, 4)
Min
5
ns
Min
7
ns
Min
45
ns
Min
0
ns
Min
0
ns
Min
0
ns
Min
0
ns
Min
50
ns
Min
30
ns
Min
0
ns
Typ
8
µs
Typ
2.5
µs
0.2
Typ
sec
26.8
t_ELWL
t_VID
t_VIDS
t_VCS
t_CSW1
t_CSW2
t_CHW
t_CS
t_AVSW
t_AVHW
t_AVHC
t_AVDP
V_ACC Rise and Fall Time
V_ACC Setup Time (During Accelerated Programming)
V_CC Setup Time
Clock Setup Time to WE# (Asynchronous)
Clock Setup Time to WE# (Synchronous)
Clock Hold Time from WE#
CE# Setup Time to WE#
AVD# Setup Time to WE#
AVD# Hold Time to WE#
AVD# Hold Time to CLK
AVD# Low Time
Min
500
ns
Min
1
µs
Min
50
µs
Min
5
ns
Min
1
ns
Min
1
ns
Min
0
ns
Min
5
ns
Min
5
ns
Min
5
ns
Min
12
ns
Notes:
1. Not 100% tested.
2. In asynchronous timing, addresses are latched on the falling edge of WE#. In synchronous mode, addresses are latched on the
first of either the rising edge of AVD# or the active edge of CLK.
3. See the “Flash Erase And Programming Performance” section for more information.
4. Does not include the preprogramming time.
50
Am42BDS640AG
November 1, 2002