參數資料
型號: SAB88C166-5M
廠商: SIEMENS A G
元件分類: 微控制器/微處理器
英文描述: 16-Bit CMOS Single-Chip Microcontrollers with/without oscillator prescaler with 32 KByte Flash EPROM
中文描述: 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100
文件頁數: 39/58頁
文件大?。?/td> 611K
代理商: SAB88C166-5M
SAB 88C166(W)
Semiconductor Group
38
AC Characteristics
(cont’d)
Multiplexed Bus for the SAB 88C166W
V
CC
= 5 V
±
10 %;
T
A
= 0 to + 70 C
C
L
(for Port 0, Port 1, Port 4, ALE, RD, WR, BHE, CLKOUT) = 100 pF
ALE cycle time = 6 TCL + 2
t
A
+
t
C
+
t
F
(150 ns at 20-MHz CPU clock without waitstates)
V
SS
= 0 V
for SAB 88C166W-M
Parameter
Symbol
CPU Clock = 16 MHz
Duty cycle 0.4 to 0.6
Variable CPU Clock
1/CLP = 1 to 20 MHz
Unit
min.
15 +
t
A
max.
min.
max.
ALE high time
t
5
CC
TCL
min
– 10
+
t
A
TCL
min
– 15
+
t
A
TCL
min
– 10
+
t
A
TCL
min
– 10
+
t
A
– 10 +
t
A
ns
Address setup to ALE
t
6
CC
10 +
t
A
ns
Address hold after ALE
t
7
CC
15 +
t
A
ns
ALE falling edge to RD,
WR (with RW-delay)
t
8
CC
15 +
t
A
ns
ALE falling edge to RD,
WR (no RW-delay)
t
9
CC
– 10 +
t
A
ns
Address float after RD,
WR (with RW-delay)
t
10
CC
5
5
ns
Address float after RD,
WR (no RW-delay)
t
11
CC
42.5
TCL
max
+ 5
ns
RD, WR low time
(with RW-delay)
t
12
CC
52.5 +
t
C
CLP – 10
+
t
C
CLP+TCL
min
– 10 +
t
C
ns
RD WR low time
(no RW-delay)
t
13
CC
77.5 +
t
C
ns
RD to valid data in
(with RW-delay)
t
14
SR
47.5 +
t
C
CLP – 20
+
t
C
CLP+TCL
min
– 20 +
t
C
CLP+TCL
min
– 20 +
t
C
2CLP – 25
+
2
t
A
+
t
C
ns
RD to valid data in
(no RW-delay)
t
15
SR
72.5 +
t
C
ns
ALE low to valid data in
t
16
SR
72.5
+
t
A
+
t
C
100
+
2
t
A
+
t
C
ns
Address to valid data in
t
17
SR
ns
Data hold after RD
rising edge
t
18
SR
0
0
ns
Data float after RD
t
19
SR
47.5 +
t
F
CLP – 15
+
t
F
ns
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