W39V040A Datasheet, PDF (22/34 Pages) Winbond – 512K × 8 CMOS FLASH MEMORY WITH LPC INTERFACE

W39V040A
10. LPC INTERFACE MODE AC CHARACTERISTICS
AC Test Conditions
PARAMETER
Input Pulse Levels
Input Rise/Fall Slew Rate
Input/Output Timing Level
Output Load
CONDITIONS
0.6 VDD to 0.2 VDD
1 V/nS
0.4 VDD / 0.4 VDD
1 TTL Gate and CL = 10 pF
Read/Write Cycle Timing Parameters
(VDD = 3.3V ±0.3V, VSS = 0V, TA = 0 to 70° C)
PARAMETER
SYMBOL
W39V040A
MIN.
MAX.
Clock Cycle Time
TCYC
30
-
Input Set Up Time
TSU
7
-
Input Hold Time
THD
0
-
Clock to Data Valid
TKQ
2
11
Note: Minimum and Maximum time has different loads. Please refer to PCI specification.
UNIT
nS
nS
nS
nS
Reset Timing Parameters
PARAMETER
VDD Stable to Reset Active
Clock Stable to Reset Active
Reset Pulse Width
Reset Active to Output Float
Reset Inactive to Input Active
SYMBOL
TPRST
TKRST
TRSTP
TRSTF
TRST
MIN.
1
100
100
-
1
TYP.
-
-
-
-
-
MAX.
-
-
-
50
-
Note: All AC timing signals observe the following guidelines for determining setup and hold times:
(a) High level signal's reference level is input high and (b) low level signal's reference level is input low.
Ref. to the AC testing condition.
UNIT
mS
µS
nS
nS
µS
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