SAB 82525
SAB 82526
SAF 82525
SAF 82526
Interface Timing
Parameter
Symbol
Limit Values
max.
Unit
min.
SAB
SAF
25
10
10
0
tAA
tAL
ns
ns
ns
ns
ns
ns
ALE pulse width
Address setup time to ALE
Address hold time from ALE
tLA
Address latch setup time to WR, RD
tALS
tAS
tAH
tDRH
Address setup time to WR, RD
Address hold time from WR, RD
10
10
80
90
DMA request delay: SAB
SAF
80
90
ns
ns
70
ns
ns
ns
ns
ns
ns
ns
ns
ns
RD pulse width
tRR
tRD
tDF
60
25
70
25
Data output delay from RD
Data float delay from RD
RD control interval
WR pulse width
35
60
10
10
60
0
tRI
tWW
tDW
tWD
tWI
x
x
Data setup time to WR CS/DS CS
x
x
Data hold time from WR CS/DS CS
WR control interval
tDSD
RD delay after WR set up
Serial Interface Timing
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Receive data setup
20
5
tRDS
tRDH
tCDS
tCDH
tXDD2
tXDD1
tRTD1
tRTD2
tCP
Receive data hold
Collision data setup
5
Collision data hold
30
20
10
10
10
240
90
90
Transmit data delay, falling clock edge
Transmit data delay, rising clock edge
Request to send delay 1
Request to send delay 2
Clock period
68
75
68
75
120
85
120
85
Clock period LOW
tCPL
Clock period HIGH
tCPH
Semiconductor Group
113
SIEMENS [ Siemens Semiconductor Group ]
