W72M64VK-XBX Datasheet, PDF (5/16 Pages) White Electronic Designs Corporation – 2Mx64 3.3V Simultaneous Operation Flash Multi-Chip Package

White Electronic Designs
W72M64VK-XBX
AC CHARACTERISTICS – WRITE/ERASE/PROGRAM OPERATIONS – WE# CONTROLLED
VCC = 3.3V ± 0.3V, -55°C ≤ TA ≤ +125°C
Parameter
Symbol
-90
-100
-120
Unit
Min
Max
Min
Max
Min
Max
Write Cycle Time (3)
tAVAV
tWC
90
100
120
ns
Chip Select Setup Time (3)
tELWL
tCS
0
0
0
ns
Write Enable Pulse Width
tWLWH
tWP
35
50
50
ns
Address Setup Time
tAVWL
tAS
0
0
0
ns
Data Setup Time
tDVWH
tDS
45
50
50
ns
Data Hold Time
tWHDX
tDH
0
0
0
ns
Address Hold Time
tWLAX
tAH
45
50
50
ns
Write Enable Pulse Width High (3)
tWHWL
tWPH
30
30
30
ns
Duration of Byte Programming Operation (1) tWHWH1
300
300
300
µs
Sector Erase (2)
tWHWH2
5
5
5
sec
Read Recovery Time before Write (3)
tGHWL
0
0
0
ns
VCC Setup Time
tVCS
50
50
50
µs
Chip Programming Time (4)
42
42
42
sec
Address Setup Time to OE# low during toggle
tASO
15
15
15
ns
bit polling
Write Recovery Time from RY/BY# (3)
tRB
0
0
0
ns
Program/Erase Valid to RY/BY#
tBUSY
90
90
90
ns
NOTES:
1. Typical value for tWHWH1 is 7µs.
2. Typical value for tWHWH2 is 0.4 sec.
3. Guaranteed by design, but not tested.
4. Typical value is 36 sec. The typical chip programming time is considerably less than the maximum chip
programming time listed, since most bytes program faster than the maximum program times listed.
AC CHARACTERISTICS – READ-ONLY OPERATIONS
VCC = 3.3V ± 0.3V, -55°C ≤ TA ≤ +125°C
Parameter
Read Cycle Time (1)
Symbol
-90
-100
-120
Unit
Min
Max
Min
Max
Min
Max
tAVAV
tRC
90
100
120
ns
Address Access Time
tAVQV
tACC
90
100
120
ns
Chip Select Access Time
tELQV
tCE
90
100
120
ns
Output Enable to Output Valid
tGLQV
tOE
40
40
50
ns
Chip Select High to Output High Z
tEHQZ
tDF
20
20
20
ns
Output Enable High to Output High Z
tGHQZ
tDF
20
20
20
ns
Output Hold from Addresses, CS# or OE#
tAXQX
tOH
0
0
0
ns
Change, Whichever occurs first
Output Enable Hold Time (1) Read
tOEH
0
0
0
Toggle and
Data# Polling
10
10
10
1. Guaranteed by design, not tested.
April 2005
Rev. 0
5
White Electronic Designs Corporation • [phone] • www.wedc.com