參數(shù)資料
型號(hào): DOC4106
廠商: Atmel Corp.
英文描述: Single-Chip Microcontroller with MP3 Decoder and Man-Machine Interface
中文描述: 單片微控制器,帶有MP3解碼器和人機(jī)界面
文件頁(yè)數(shù): 42/47頁(yè)
文件大?。?/td> 791K
代理商: DOC4106
42
AT8xC51SND1C
4106F–8051–10/02
Waveforms
Figure 28.
Flash Memory – ISP Waveforms
Note:
ISP
must be driven through a pull-down resistor (see Section “In-System Programming”,
page 28).
Figure 29.
Flash Memory – Internal Busy Waveforms
External Clock Drive and Logic Level References
Definition of Symbols
Table 56.
External Clock Timing Symbol Definitions
Timings
Table 57.
External Clock AC Timings
V
DD
= 2.7 to 3.3V, T
A
= 0 to 70
°
C
Waveforms
Figure 30.
External Clock Waveform
RST
T
SVRL
ISP1
T
RLSX
FBUSY Bit
T
BHBL
Signals
Conditions
C
Clock
H
High
L
Low
X
No Longer Valid
Symbol
Parameter
Min
Max
Unit
T
CLCL
Clock Period
50
ns
T
CHCX
High Time
10
ns
T
CLCX
Low Time
10
ns
T
CLCH
Rise Time
3
ns
T
CHCL
Fall Time
3
ns
T
CR
Cyclic Ratio in X2 mode
40
60
%
0.45 V
T
CLCL
V
DD
- 0.5
V
IH1
V
IL
T
CHCX
T
CLCH
T
CHCL
T
CLCX
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