參數(shù)資料
型號: MT8920B
廠商: Mitel Networks Corporation
英文描述: ST-BUS Parallel Access Circuit(串行通信總線(ST-Bus)并行存取電路(在ST總線和并行系統(tǒng)間提供一個簡單接口))
中文描述: 意法半導體總線并行訪問電路(串行通信總線(圣總線)并行存取電路(在圣總線和并行系統(tǒng)間提供一個簡單接口))
文件頁數(shù): 18/29頁
文件大?。?/td> 215K
代理商: MT8920B
MT8920B
CMOS
3-20
Timing is over recommended temperature & power supply voltages.
Typical figures are at 25
°
C, V
DD
=5V, t
CLK
=244 ns, t
CH
=t
CL
=122 ns and are for design aid only: not guaranteed and not subject to production
testing.
Figure 15 - Mode 2 Timing Diagram (No Contention)
AC Electrical Characteristics
- Mode 2 Parallel Bus Timing - (see Figures 15 and 16)
(V
CC
=5.0V
±
5%,T
A
=-40 to 85
°
C)
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
OE Low to Valid Data
t
EVD
t
AA
t
CSD
t
OHZ
t
ASF
t
DST
t
DHT
t
AH
t
WP
t
EC4H
t
EC4L
t
C4BL
t
C4BH
t
EBL
60
ns
Load A, C
L
=130pF, R
L
=740
2
Address Access Time
120
ns
Load A, C
L
=130pF, R
L
= 740
3
CS Low to Valid Data
60
ns
Load A, C
L
=130pF, R
L
=740
4
Output Disable
50
ns
Load A, C
L
=130pF, R
L
=740
5
Address Setup Time
20
ns
6
Data Setup Time
30
ns
7
Data Hold Time
5
ns
8
Address Hold Time
50
ns
9
Write Pulse Width
50
ns
10
OE, R/W High to C4i High
-10
ns
11
OE, R/W Low to C4i Low
10
ns
12
C4i High to Busy Low
50
ns
Load C
13
C4i Low to Busy High
50
ns
Load C
14
OE, R/W High to Busy Low
40
ns
Load C
t
AH
t
ASF
t
WP
t
OHZ
t
DST
t
DHT
t
EVD
t
CSD
t
AA
DATA IN
DATA OUT
A0 - A5
CS
OE
R/W
D0 - D7
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