CY62157DV20L-55BVI Cypress Semiconductor Corp, CY62157DV20L-55BVI Datasheet - Page 5

• Manufacturer Part Number: CY62157DV20L-55BVI
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY62157DV20L-55BVI

• Lead Free Status / Rohs Status: Not Compliant

Switching Characteristics
Switching Waveforms
Document #: 38-05136 Rev. *B
Read Cycle
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Write Cycle
t
t
t
t
t
t
t
t
t
t
t
Read Cycle No. 1 (Address Transition Controlled)
Notes:
10. At any given temperature and voltage condition, t
11. If both byte enables are toggled together, this value is 10 ns.
12. t
13. The internal Write time of the memory is defined by the overlap of WE, CE
14. Device is continuously selected. OE, CE
15. WE is HIGH for Read cycle.
RC
AA
OHA
ACE
DOE
LZOE
HZOE
LZCE
HZCE
PU
PD
DBE
LZBE
HZBE
WC
SCE
AW
HA
SA
PWE
BW
SD
HD
HZWE
LZWE
DAT A OUT
9.
ADDRESS
Parameter
Test conditions assume signal transition time of 5 ns or less, timing reference levels of V
specified I
HZOE
[11]
, t
HZCE
[13]
OL
, t
.
HZBE
Read Cycle Time
Address to Data Valid
Data Hold from Address Change
CE
OE LOW to Data Valid
OE LOW to Low Z
OE HIGH to High Z
CE
CE
CE
CE
BLE/BHE LOW to Data Valid
BLE/BHE LOW to Low Z
BLE/BHE HIGH to High Z
Write Cycle Time
CE
Address Set-up to Write End
Address Hold from Write End
Address Set-up to Write Start
WE Pulse Width
BLE/BHE LOW to Write End
Data Set-up to Write End
Data Hold from Write End
WE LOW to High Z
WE HIGH to Low Z
, and t
1
1
1
1
1
1
PREVIOUS DATA VALID
LOW or CE
LOW or CE
HIGH or CE
LOW or CE
HIGH or CE
LOW or CE
HZWE
transitions are measured when the outputs enter a high-impedance state.
(Over the Operating Range)
Description
2
2
2
2
2
2
1
HIGH to Data Valid
HIGH to Low Z
HIGH to Power-up
HIGH to Write End
[10]
LOW to High Z
LOW to Power-down
= V
[10, 12]
[10]
[10, 12]
IL
t
, BHE and/or BLE = V
OHA
HZCE
[10]
[10, 12]
is less than t
[14, 15]
t
AA
[10]
[10, 12]
LZCE
IL
, CE
, t
HZBE
[9]
1
2
= V
= V
is less than t
IL
t
IH
RC
, BHE and/or BLE = V
CY62157DV20-55
.
Min.
55
10
10
55
45
45
45
45
25
10
5
0
5
0
0
0
CC(typ.)/2
LZBE
, input pulse levels of 0 to V
, t
Max.
HZOE
55
55
25
20
20
55
55
20
20
IL
is less than t
.
CY62157DV20-70
Min.
70
10
10
70
60
60
50
60
30
10
DATA VALID
5
0
5
0
0
0
CY62157DV20
CC(typ.)
, and output loading of the
Max.
70
70
35
25
25
70
70
25
25
MoBL2
Page 5 of 10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns