參數(shù)資料
型號： DS89C450
英文描述： Ultra-High-Speed Flash Microcontrollers
中文描述： 超高速閃存微控制器
文件頁數(shù)： 6/48頁
文件大?。?/td> 934K
代理商： DS89C450
DS89C430/DS89C440/DS89C450 Ultra-High-Speed Flash Microcontrollers
6 of 48
AC CHARACTERISTICS (continued)
(V
CC
= 4.5V to 5.5V, T
O
= -40°C to +85°C.) (See
Figure 1
,
Figure 2
, and
Figure 3
.)
1-CYCLE
PAGE MODE 1
2-CYCLE
PAGE MODE 1
4-CYCLE
PAGE MODE 1
PAGE MODE 2
NONPAGE MODE
PARAMETER
SYMBOL
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
UNITS
Port 0 Address to Valid Data
In (Note 16)
t
AVDV0
3t
CLCL
- 20
+ t
STC1
3t
CLCL
- 20
+ t
STC1
ns
Port 2 Address to Valid Data
In (Note 16)
t
AVDV2
t
CLCL
- 20
+ t
STC1
1.5t
CLCL
-
20 + t
STC1
3.5t
CLCL
-
20 + t
STC1
3.0t
CLCL
- 20
+ t
STC1
3.5t
CLCL
-
20 + t
STC1
ns
ALE Low to
RD
or
WR
Low
(Note 16)
t
LLRL
(
t
LLWL)
0.5t
CLCL
- 8 +
t
STC2
0.5t
CLCL
+
6 + t
STC2
2t
CLCL
- 8
+ t
STC2
2t
CLCL
+ 6
+ t
STC2
4t
CLCL
- 8
+ t
STC2
4t
CLCL
+ 6 +
t
STC2
0.5t
CLCL
- 8
+ t
STC2
0.5t
CLCL
+ 4
+ t
STC2
0.5t
CLCL
- 8
+ t
STC2
0.5t
CLCL
+ 5
+ t
STC2
ns
Port 0 Address Valid to
RD
or
WR
Low (Note 16)
t
AVRL0
(
t
AVWL0)
1.5t
CLCL
- 5
+ t
STC2
t
CLCL
- 5 +
t
STC2
ns
Port 2 Address Valid to
RD
or
WR
Low (Note 16)
t
AVRL2
(t
AVWL2)
0 + t
STC5
- 5
0.5t
CLCL
- 5
+ t
STC5
1.5t
CLCL
- 5
+ t
STC5
t
CLCL
- 5 +
t
STC5
1.5t
CLCL
- 5
+ t
STC5
ns
Data Out Valid to
WR
Transition (Note 15)
t
QVWX
-5
-5
-5
-5
-5
ns
Data Hold After
WR
(Note 15)
t
WHQX
t
CLCL
+ t
STC2
- 10
t
CLCL
+ t
STC2
- 10
t
CLCL
+ t
STC2
- 10
t
CLCL
+ t
STC2
- 10
t
CLCL
+ t
STC2
- 10
ns
RD
or
WR
High to ALE High
(Note 15)
t
RHLH
(
t
WHLH)
t
STC2
- 2
t
STC2
+ 4
t
STC2
- 2
t
STC2
+ 4
t
STC2
- 2
t
STC2
+ 4
t
STC2
- 2
t
STC2
+ 4
t
STC2
- 2
t
STC2
+ 4
ns
Note:
Specifications to -40°C are guaranteed by design and are not production tested. AC electrical characteristics assume 50% duty cycle for the oscillator and are not 100% tested, but are
guaranteed by design.
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DS89C450+MNG 制造商:Maxim Integrated Products 功能描述:MCU 8BIT CISC 64KB FLASH 5V 40PDIP - Rail/Tube
DS89C450+MNL 制造商:Maxim Integrated Products 功能描述:MCU 8BIT CISC 64KB FLASH 5V 40PDIP - Rail/Tube
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