Cypress CY62137FV30 사양 시트 - 페이지 5
{카테고리_이름} Cypress CY62137FV30에 대한 사양 시트을 온라인으로 검색하거나 PDF를 다운로드하세요. Cypress CY62137FV30 13 페이지. Mobl 2-mbit (128k x 16) static ram
페이지 인쇄Switching Characteristics
[11, 12]
Over the Operating Range
Parameter
Read Cycle
t
Read Cycle Time
RC
t
Address to Data Valid
AA
t
Data Hold From Address Change
OHA
t
CE LOW to Data Valid
ACE
t
OE LOW to Data Valid
DOE
t
OE LOW to Low Z
LZOE
t
OE HIGH to High Z
HZOE
t
CE LOW to Low Z
LZCE
t
CE HIGH to High Z
HZCE
t
CE LOW to Power Up
PU
t
CE HIGH to Power Down
PD
t
BLE/BHE LOW to Data Valid
DBE
t
BLE/BHE LOW to Low Z
LZBE
t
BLE/BHE HIGH to High Z
HZBE
[16]
Write Cycle
t
Write Cycle Time
WC
t
CE LOW to Write End
SCE
t
Address Setup to Write End
AW
t
Address Hold from Write End
HA
t
Address Setup to Write Start
SA
t
WE Pulse Width
PWE
t
BLE/BHE LOW to Write End
BW
t
Data Setup to Write End
SD
t
Data Hold From Write End
HD
t
WE LOW to High Z
HZWE
t
WE HIGH to Low Z
LZWE
Notes
11. Test conditions for all parameters, other than tri-state parameters, assume signal transition time of 3 ns (1V/ns) or less, timing reference levels of V
levels of 0 to V
, and output loading of the specified I
CC(typ)
12. AC timing parameters are subject to byte enable signals (BHE or BLE) not switching when chip is disabled. Please see
13. At any temperature and voltage condition, t
14. t
, t
, t
, and t
transitions are measured when the outputs enter a high impedance state.
HZOE
HZCE
HZBE
HZWE
15. If both byte enables are toggled together, this value is 10 ns.
16. The internal write time of the memory is defined by the overlap of WE, CE = V
signals terminate a write by going INACTIVE. The data input setup and hold timing are referenced to the edge of the signal that terminates the write.
Document Number: 001-07141 Rev. *F
Description
[13]
[13, 14]
[13]
[13, 14]
[13, 15]
[13, 14]
[13, 14]
[13]
/I
as shown in
"AC Test Loads and Waveforms"
OL
OH
is less than t
, t
is less than t
HZCE
LZCE
HZBE
IL
CY62137FV30 MoBL
45 ns (Ind'l/Auto-A)
Min
Max
45
45
10
45
22
5
18
10
18
0
45
45
5
18
45
35
35
0
0
35
35
25
0
18
10
on page 4.
application note AN13842
, t
is less than t
, and t
LZBE
HZOE
LZOE
, BHE and/or BLE = V
. All signals are ACTIVE to initiate a write and any of these
IL
55 ns (Auto-E)
Unit
Min
Max
55
ns
55
ns
10
ns
55
ns
25
ns
5
ns
20
ns
10
ns
20
ns
0
ns
55
ns
55
ns
10
ns
20
ns
55
ns
40
ns
40
ns
0
ns
0
ns
40
ns
40
ns
25
ns
0
ns
20
ns
10
ns
/2, input pulse
CC(typ)
for further clarification.
is less than t
for any device.
HZWE
LZWE
Page 5 of 12
®
[+] Feedback
[+] Feedback