Ac switching characteristics – Cypress CY7C1041DV33 User Manual
Page 5
CY7C1041DV33
Document #: 38-05473 Rev. *E
Page 5 of 13
AC Switching Characteristics
Over the Operating Range
[8]
Parameter
Description
–10 (Industrial)
–12 (Automotive)
Unit
Min
Max
Min
Max
Read Cycle
t
power
V
CC
(Typical) to the First Access
100
100
μs
t
RC
Read Cycle Time
10
12
ns
t
AA
Address to Data Valid
10
12
ns
t
OHA
Data Hold from Address Change
3
3
ns
t
ACE
CE LOW to Data Valid
10
12
ns
t
DOE
OE LOW to Data Valid
5
6
ns
t
LZOE
OE LOW to Low-Z
0
0
ns
t
HZOE
OE HIGH to High-Z
5
6
ns
t
LZCE
CE LOW to Low-Z
3
3
ns
t
HZCE
CE HIGH to High-Z
5
6
ns
t
PU
CE LOW to Power Up
0
0
ns
t
PD
CE HIGH to Power Down
10
12
ns
t
DBE
Byte Enable to Data Valid
5
6
ns
t
LZBE
Byte Enable to Low-Z
0
0
ns
t
HZBE
Byte Disable to High-Z
6
6
ns
Write Cycle
t
WC
Write Cycle Time
10
12
ns
t
SCE
CE LOW to Write End
7
8
ns
t
AW
Address Setup to Write End
7
8
ns
t
HA
Address Hold from Write End
0
0
ns
t
SA
Address Setup to Write Start
0
0
ns
t
PWE
WE Pulse Width
7
8
ns
t
SD
Data Setup to Write End
5
6
ns
t
HD
Data Hold from Write End
0
0
ns
t
LZWE
WE HIGH to Low-Z
3
3
ns
t
HZWE
WE LOW to High-Z
5
6
ns
t
BW
Byte Enable to End of Write
7
8
ns
Notes
8. Test conditions assume signal transition time of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified I
OL
/I
OH
and 30-pF load capacitance.
9. t
POWER
gives the minimum amount of time that the power supply should be at typical V
CC
values until the first memory access is performed.
10. t
HZOE
, t
HZCE
, t
HZBE,
and t
HZWE
are specified with a load capacitance of 5 pF as in part (c) of
. Transition is measured when the outputs enter
a high impedance state.
11. At any given temperature and voltage condition, t
HZCE
is less than t
LZCE
, t
HZOE
is less than t
LZOE
, t
HZBE
is less than t
LZBE
, and t
HZWE
is less than t
LZWE
for any given
device.