QL4036-4PQ208C View Datasheet(PDF) - QuickLogic Corporation
Part Name
Description
MFG CO.
QL4036-4PQ208C
QuickLogic Corporation
'QL4036-4PQ208C' PDF : 12 Pages View PDF
QL4036 - QuickRAMTM
AC CHARACTERISTICS at VCC = 3.3V, TA = 25°C (K = 1.00)
(To calculate delays, multiply the appropriate K factor in the "Operating Range" section by the following numbers.)
Logic Cells
Symbol
Parameter
tPD
tSU
tH
tCLK
tCWHI
tCWLO
tSET
tRESET
tSW
tRW
Combinatorial Delay [6]
Setup Time [6]
Hold Time
Clock to Q Delay
Clock High Time
Clock Low Time
Set Delay
Reset Delay
Set Width
Reset Width
Propagation Delays (ns)
Fanout [5]
1
2
3
4
8
1.4
1.7
1.9
2.2
3.2
1.7
1.7
1.7
1.7
1.7
0.0
0.0
0.0
0.0
0.0
0.7
1.0
1.2
1.5
2.5
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.0
1.3
1.5
1.8
2.8
0.8
1.1
1.3
1.6
2.6
1.9
1.9
1.9
1.9
1.9
1.8
1.8
1.8
1.8
1.8
RAM Cell Synchronous Write Timing
Symbol
Parameter
1
TSWA
WA Setup Time to WCLK
1.0
THWA
WA Hold Time to WCLK
0.0
TSWD
WD Setup Time to WCLK
1.0
THWD
WD Hold Time to WCLK
0.0
TSWE
WE Setup Time to WCLK
1.0
THWE
WE Hold Time to WCLK
0.0
TWCRD
WCLK to RD (WA=RA) [5]
5.0
Propagation Delays (ns)
Fanout
2
3
4
8
1.0
1.0
1.0
1.0
0.0
0.0
0.0
0.0
1.0
1.0
1.0
1.0
0.0
0.0
0.0
0.0
1.0
1.0
1.0
1.0
0.0
0.0
0.0
0.0
5.3
5.6
5.9
7.1
Notes:
[5]Stated timing for worst case Propagation Delay over process variation at VCC=3.3V and TA=25°C. Multiply by
the appropriate Delay Factor, K, for speed grade, voltage and temperature settings as specified in the Operating
Range.
[6]These limits are derived from a representative selection of the slowest paths through the QuickRAM logic cell
including typical net delays. Worst case delay values for specific paths should be determined from timing anal-
ysis of your particular design.
6-39
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