參數(shù)資料
型號(hào)： SAE81C91
廠商： INFINEON TECHNOLOGIES AG
元件分類： 微控制器/微處理器
英文描述： 2 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PQCC28
封裝： PLASTIC, LCC-28
文件頁(yè)數(shù)： 35/41頁(yè)
文件大?。?/td> 521K
代理商： SAE81C91
07Feb95@09:05h Intermediate Version
Semiconductor Group
39
SAE 81C90/91
Figure 12
SI-Write-Timing
AC Characteristics (PI Timing)
V
CC = 5 V ± 10 %;
V
SS = 0 V
T
A = – 40 to + 110 C;
C
L = 50 pF
Parameter
Symbol
Limit Values
Unit
Test Condition
min.
max.
Read-Cycle time
t
CYR
DC
4
t
OSC
ns
Write-Cycle time
t
CYW
DC
4
t
OSC
ns
ALE pulse width
t
LHLL
DC
30
ns
Address setup to ALE low
t
AVLL
SR
10
ns
Address hold after ALE low
t
LLAX
SR
10
ns
RD pulse width
t
RLRH
SR
2
t
OSC + 30
ns
WR pulse width
t
WLWH SR
2
t
OSC + 30
ns
ALE low to WR active
t
LLWL
SR
20
ns
ALE low to RD active
t
LLRL
SR
20
ns
Data float after RD high
t
RFDX DC
0
20
ns
RD low to data valid
t
RLDV DC
2
t
OSC + 20
ns
Data setup before WR high
t
DVWH SR
10
ns
Data hold after WR high
t
WHDX SR
5
ns
CS low to RD low
t
CLRL / SR
0
ns
CS low to WR low
t
CLWL SR
0
ns
WR high to next ALE low
t
WHLL SR
1.5
t
OSC
ns
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