參數(shù)資料
型號(hào)： DS80C390
英文描述： Dual CAN High-Speed Microprocessor
中文描述： 雙CAN高速微處理器
文件頁(yè)數(shù)： 34/58頁(yè)
文件大?。?/td> 5486K
代理商： DS80C390
DS80C390
34 of 58
110199
AC ELECTRICAL CHARACTERISTICS (Multiplexed address/data bus)
40 MHz
VARIABLE CLOCK
MIN
0
1
0.375 t
MCS
- 5
0.125 t
MCS
- 5
PARAMETER
Oscillator Freq.
SYMBOL MIN MAX
1 / t
CLCL
MAX
40
40
UNITS
MHz
(Ext. Osc)
(Ext. Crystal)
0
1
40
40
ALE Pulse Width
Port 0 Instruction Address or
4
CE0
Valid to ALE Low
Address Hold after ALE Low
ALE Low to Valid Instruction In
ALE Low to
PSEN
Low
PSEN
Pulse Width
PSEN
Low to Valid Instruction In
Input Instruction Hold after
PSEN
Input Instruction Float after
PSEN
Port 0 Address to Valid Instruction
In
Port 2, 4 Address to Valid
Instruction In
PSEN
Low to Address Float
t
LHLL
t
AVLL
ns
ns
t
LLAX1
t
LLIV
t
LLPL
t
PLPH
t
PLIV
t
PXIX
t
PXIZ
t
AVIV1
0.125 t
MCS
- 5
ns
ns
ns
ns
ns
ns
ns
ns
0.625 t
MCS
- 20
0.125 t
MCS
- 5
0.5 t
MCS
- 5
0.5 t
MCS
- 20
0
0
0.25 t
MCS
- 5
0.75 t
MCS
- 20
t
AVIV2
0.875 t
MCS
- 25
ns
t
PLAZ
0
0
ns
NOTES FOR AC ELECTRICAL CHARACTERISTICS:
1.
All parameters apply to both commercial and industrial temperature operation unless otherwise noted.
2.
The value t
MCS
is a function of the machine cycle clock in terms of the processor’s input clock
frequency. These relationships are described in the “Stretch Value Timing” table.
3.
All signals characterized with load capacitance of 80 pF except Port 0, ALE,
PSEN
,
RD
and
WR
with 100 pF.
4.
Interfacing to memory devices with float times (turn off times) over 25 ns may cause bus contention.
This will not damage the parts, but will cause an increase in operating current.
5.
Specifications assume a 50% duty cycle for the oscillator. Port 2 and ALE timing will change in
relation to duty cycle variation.
6.
Some AC timing characteristic drawings contain references to the CLK signal. This waveform is
provided to assist in determining the relative occurrence of events, and cannot be used to determine
the timing of signals relative to the external clock.
相關(guān)PDF資料
PDF描述
DS80C390-QNR Dual CAN High-Speed Microprocessor
DS80C390-FCR Dual CAN High-Speed Microprocessor
DS80C390-FNR Dual CAN High-Speed Microprocessor
DS80C390-QCR Dual CAN High-Speed Microprocessor
DS80C410 Network Microcontrollers with Ethernet and CAN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS80C390_00 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User’s Guide Supplement
DS80C390_05 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Dual CAN High-Speed Microprocessor
DS80C390+FCR 制造商:Maxim Integrated Products 功能描述:MICRO DUAL CAN LQFP PB-FREE - Trays
DS80C390+QCR 制造商:Maxim Integrated Products 功能描述:MICRO DUAL CAN PLCC PB-FREE - Rail/Tube
DS80C390+QNR 制造商:Maxim Integrated Products 功能描述:MICRO DUAL CAN PLCC IND PB-FREE - Rail/Tube
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