CY7C1399B
Switching Characteristics
Over the Operating Range
[6]
(Continued)
1399B-15
Parameter
Read Cycle
t
RC
t
AA
t
OHA
t
ACE
t
DOE
t
LZOE
t
HZOE
t
LZCE
t
HZCE
t
PU
t
PD
Write Cycle
[9, 10]
t
WC
t
SCE
t
AW
t
HA
t
SA
t
PWE
t
SD
t
HD
t
HZWE
t
LZWE
Write Cycle Time
CE LOW to Write End
Address Set-Up to Write End
Address Hold from Write End
Address Set-Up to Write Start
WE Pulse Width
Data Set-Up to Write End
Data Hold from Write End
WE LOW to High Z
[9]
WE HIGH to Low Z
[7]
3
15
10
10
0
0
10
8
0
7
3
20
12
12
0
0
12
10
0
7
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Read Cycle Time
Address to Data Valid
Data Hold from Address Change
CE LOW to Data Valid
OE LOW to Data Valid
OE LOW to Low Z
[7]
OE HIGH to High Z
[7, 8]
CE LOW to Low Z
[7]
CE HIGH to High Z
[7, 8]
CE LOW to Power-Up
CE HIGH to Power-Down
0
15
3
7
0
20
0
6
3
7
3
15
6
0
6
15
15
3
20
7
20
20
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Description
Min.
Max.
1399B-20
Min.
Max.
Unit
Data Retention Characteristics
(Over the Operating Range - L version only)
Parameter
V
DR
I
CCDR
t
CDR
t
R
Description
V
CC
for Data Retention
Data Retention Current
Chip Deselect to Data
Retention Time
Operation Recovery Time
Com’l
V
CC
= V
DR
= 2.0V,
CE > V
CC
– 0.3V,
V
IN
> V
CC
– 0.3V or
V
IN
< 0.3V
Conditions
Min.
2.0
0
0
t
RC
20
Max.
Unit
V
µA
ns
ns
Document #: 38-05071 Rev. *C
Page 5 of 10
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