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