參數(shù)資料
型號(hào): DS1920
廠商: Maxim Integrated Products, Inc.
英文描述: Temperature Button(溫度按鈕)
文件頁(yè)數(shù): 17/52頁(yè)
文件大?。?/td> 881K
代理商: DS1920
AD14160/AD14160L
–17–
REV. A
40 MHz–5 V
40 MHz–3.3 V
Min
Parameter
Min
Max
Max
Units
Timer
Switching Characteristic:
t
DTEX
CLKIN High to TIMEXP
15.5
15.5
ns
CLKIN
t
DTEX
t
DTEX
TIMEXP
Figure 12. Timer
40 MHz–5 V
40 MHz–3.3 V
Min
Parameter
Min
Max
Max
Units
Flags
Timing Requirements:
t
SFI
t
HFI
t
DWRFI
t
HFIWR
FLAG3-0
IN
Setup Before CLKIN High
1
FLAG3-0
IN
Hold After CLKIN High
1
FLAG3-0
IN
Delay After
RD
/
WR
Low
1
FLAG3-0
IN
Hold After
RD
/
WR
Deasserted
1
8 + 5DT/16
0 – 5DT/16
8 + 5DT/16
0 – 5DT/16
ns
ns
ns
ns
5 + 7DT/16
5 + 7DT/16
0.5
0.5
Switching Characteristics:
t
DFO
t
HFO
t
DFOE
t
DFOD
FLAG3-0
OUT
Delay After CLKIN High
FLAG3-0
OUT
Hold After CLKIN High
CLKIN High to FLAG3-0
OUT
Enable
CLKIN High to FLAG3-0
OUT
Disable
16.5
16.5
ns
ns
ns
ns
4
3
4
3
14.5
14.5
NOTE
1
Flag inputs meeting these setup and hold times will affect conditional instructions in the following instruction cycle.
CLKIN
FLAG3–0
OUT
FLAG OUTPUT
t
DFO
t
HFO
t
DFO
t
DFOD
t
DFOE
CLKIN
RD
,
WR
FLAG INPUT
t
SFI
t
HFI
t
HFIWR
t
DWRFI
FLAG3–0
IN
Figure 13. Flags
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