CYM1836PM-15C Ver la hoja de datos (PDF) - Cypress Semiconductor
Número de pieza
componentes Descripción
Fabricante
CYM1836PM-15C Datasheet PDF : 8 Pages
| |||
CYM1836
Switching Characteristics Over the Operating Range[4]
1836–15 1836–20 1836–25 1836–30 1836–35 1836– 45
Parameter Description Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit
READ CYCLE
tRC
Read Cycle Time 15
20
25
30
35
45
ns
tAA
Address to Data
15
20
25
30
35
45 ns
Valid
tOHA
Output Hold from 3
3
3
3
3
3
ns
Address Change
tACS
CS LOW to Data
15
20
25
30
35
45 ns
Valid
tDOE
OE LOW to Data
7
8
8
10
12
15 ns
Valid
tLZOE
OE LOW to
0
0
0
0
0
0
ns
Low Z
tHZOE
OE HIGH to High
7
Z
8
10
11
12
15 ns
tLZCS
CS LOW to
Low Z[5]
3
3
3
3
3
3
ns
tHZCS
CS HIGH to High
Z[5, 6]
7
WRITE CYCLE[7]
10
10
13
15
18 ns
tWC
Write Cycle Time 15
20
25
30
35
45
ns
tSCS
CS LOW to Write 12
15
15
18
20
25
ns
End
tAW
Address Set-Up 12
15
15
18
20
25
ns
to Write End
tHA
Address Hold
0
0
0
0
0
0
ns
from Write End
tSA
Address Set-Up 0
0
0
0
0
0
ns
to Write Start
tPWE
WE Pulse Width 12
15
15
18
20
25
ns
tSD
Data Set-Up to
7
Write End
10
10
13
15
20
ns
tHD
Data Hold from
0
0
0
0
0
0
ns
Write End
tLZWE
WE HIGH to Low 3
3
3
3
3
3
ns
Z
tHZWE
WE LOW to High 0
6
0
8
0 10 0 15 0 15 0 18 ns
Z[6]
Shaded area contains preliminary information.
Notes:
4. Test conditions assume signal transition times of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified
IOL/IOH and 30-pF load capacitance.
5. At any given temperature and voltage condition, tHZCS is less than tLZCS for any given device. These parameters are guaranteed by design and not 100% tested.
6. tHZCS and tHZWE are specified with CL = 5 pF as in part (b) of AC Test Loads and Waveforms. Transition is measured ±500 mV from steady-state voltage.
7. The internal write time of the memory is defined by the overlap of CS 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.
4
Share Link: 