DS2152
AC CHARACTERISTICS -
MULTIPLEXED PARALLEL
(0°C to 70°C; VDD=5V ± 5% for DS2152L;
PORT (MUX=1)
PARAMETER
Cycle Time
-40°C to +85°C; VDD=5V ± 5% for DS2152LN)
SYMBOL MIN TYP MAX UNITS NOTES
tCYC
200
100
ns
ns
PWEL
Pulse Width, DS Low or RD High
PWEH
100
ns
Pulse Width, DS High or RD Low
Input Rise/Fall Times
tR, tF
tRWH
20
50
ns
ns
10
50
20
R/ W Hold Time
tRWS
tCS
ns
ns
R/ W Setup Time Before DS High
CS Setup Time Before DS, WR or RD
active
tCH
0
ns
CS Hold Time
Read Data Hold Time
Write Data Hold Time
Muxed Address Valid to AS or ALE Fall
Muxed Address Hold Time
tDHR
tDHW
tASL
tAHL
tASD
10
0
15
10
20
ns
ns
ns
ns
ns
Delay Time, DS, WR or RD to AS or ALE
Rise
Pulse Width AS or ALE High
PWASH
tASED
30
10
ns
ns
Delay Time, AS or ALE to DS, WR or RD
tDDR
tDSW
20
50
80
ns
ns
Output Data Delay Time from DS or RD
Data Setup Time
(see Figures 16-1 to 16-3 for details)
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DALLAS [ DALLAS SEMICONDUCTOR ]
