W78M32VP-XBX
Table 36 – AC CHARACTERISTICS — WRITE/ERASE/PROGRAM OPERATIONS —
WE# CONTROLLED
VCC = 3.3V ± 0.3V, -55°C ≤ TA ≤ +125°C
-110
Min Max
110
-120
Parameter
Symbol
Unit
Min Max
Write Cycle Time (3)
tAVAV
tELWL
tWC
tCS
tWP
tAS
120
ns
ns
Chip Select Setup Time (3)
Write Enable Pulse Width
Address Setup Time
0
35
0
0
35
0
tWLWH
tAVWL
tDVWH
tWHDX
tWLAX
tWHWL
tWHWH1
tWHWH2
tGHWL
tVCS
ns
ns
Data Setup Time
tDS
30
0
30
0
ns
Data Hold Time
tDH
tAH
ns
Address Hold Time
45
30
45
30
ns
Write Enable Pulse Width High (3)
Duration of Byte Programming Operation (1)
Sector Erase (2)
tWPH
ns
480
5
480
5
μs
sec
ns
Read Recovery Time before Write (3)
0
0
VCC Setup Time (3)
35
35
μs
sec
ns
Chip Programming Time (4)
200
200
Address Setup Time to OE# low during toggle bit polling
tASO
15
15
Notes:
1. Typical value for tWHWH1 is 6μs.
2. Typical value for tWHWH2 is 0.5 sec.
3. Guaranteed by design, but not tested.
4. Typical value is 50 sec. The typical chip program time is considerably less than the maximum chip programming time listed, since most bytes program faster than the maximum program times listed.
TABLE 37 – AC CHARACTERISTICS — ALTERNATE CS# CONTROLLED ERASE AND PROGRAM OPERATIONS
Parameter
Description
Speed Options
Unit
JEDEC
tVAVAV
tAVWL
Std
tWS
110
120
120
0
Write Cycle Time (1)
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Typ
Typ
Typ
110
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
μs
sec
tAS
Address Setup Time
tELAX
tAH
Address Hold Time
45
30
0
50
30
0
tDVEH
tDS
Data Setup Time
tEHDX
tDH
Data Hold Time
tWHEH
tGHEL
tCH
CE# Hold Time
0
0
tGHEL
tWS
Read Recovery Time Before Write (OE# High to WE# Low)
WE# Setup Time
0
0
tWLEL
0
0
tEHWH
tELEH
tWH
WE# Hold Time
0
0
tCP
CS# Pulse Width
35
30
480
13.5
0.5
35
30
480
13.5
0.5
tEHEL
tCPH
tWHWH1
tWHWH1
tWHWH2
CS# Pulse Width High (1)
Programming Operation
Accelerated Programming Operation
Sector Erase Operation
tWHWH1
tWHWH1
tWHWH2
Note:
1. Not tested.
Microsemi Corporation reserves the right to change products or specifications without notice.
August 2011 © 2011 Microsemi Corporation. All rights reserved.
Rev. 15
23
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