Cypress CY62136VN Specificatieblad - Pagina 5

Blader online of download pdf Specificatieblad voor {categorie_naam} Cypress CY62136VN. Cypress CY62136VN 13 pagina's. Mobl 2-mbit (128k x 16) static ram

Pagina afdrukken

Switching Characteristics

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
[12, 13]
Write Cycle
t
Write Cycle Time
WC
t
CE LOW to Write End
SCE
t
Address Set-up to Write End
AW
t
Address Hold from Write End
HA
t
Address Set-up to Write Start
SA
t
WE Pulse Width
PWE
t
BLE / BHE LOW to Write End
BW
t
Data Set-up 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:
9. Test conditions assume signal transition time of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to V
I
/I
and 30-pF load capacitance.
OL
OH
10. At any given temperature and voltage condition, t
11. t
, t
, and t
are specified with C
HZOE
HZCE
HZWE
12. The internal write time of the memory is defined by the overlap of CE LOW and WE LOW. Both signals must be LOW to initiate a write and either signal can
terminate a write by going HIGH. The data input set-up and hold timing should be referenced to the rising edge of the signal that terminates the write.
13. The minimum write cycle time for write cycle 3 (WE controlled, OE LOW) is the sum of t
Document #: 001-06510 Rev. *A
[9]
Over the Operating Range
Description
[10]
[10, 11]
[10]
[10, 11]
[10, 11]
[12]
[10, 11]
[10]
is less than t
, t
HZCE
LZCE
HZOE
= 5 pF as in (b) of AC Test Loads. Transition is measured ±500 mV from steady-state voltage.
L
CY62136VN MoBL
55 ns
Min.
Max.
55
55
10
55
25
5
25
10
25
0
55
25
5
25
55
45
45
0
0
40
50
25
0
20
5
CC
is less than t
, and t
is less than t
LZOE
HZWE
and t
.
HZWE
SD
®
70 ns
Min.
Max.
Unit
70
ns
70
ns
10
ns
70
ns
35
ns
5
ns
25
ns
10
ns
25
ns
0
ns
70
ns
35
ns
5
ns
25
ns
70
ns
60
ns
60
ns
0
ns
0
ns
50
ns
60
ns
30
ns
0
ns
25
ns
10
ns
typ., and output loading of the specified
for any given device.
LZWE
Page 5 of 12
[+] Feedback