参数资料
型号: AT89C51SND1C
厂商: Atmel Corp.
元件分类: DC/DC变换器
英文描述: DC-DC Converter, 15Watt, Input VDC: ?9~36, Output VDC: 15, Max Output Current(A): 1, Package: 2x1, Isolation(VDC): 1500, Operating Temp. -40??C to +75??C, Low Ripple & Noise, High Efficiency up to 85%, Low Profile Metal Package, Continuous Auto-Recovery, Single & Dual Ouput Regulated
中文描述: 单片微控制器,带有MP3解码器和人机界面
文件页数: 43/47页
文件大小: 791K
代理商: AT89C51SND1C
43
AT8xC51SND1C
4106F–8051–10/02
Figure 31.
AC Testing Input/Output Waveforms
Notes:
1. During AC testing, all inputs are driven at
V
DD
-0.5V for a logic 1 and 0.45V for a logic 0.
2. Timing measurements are made on all outputs at V
IH
min for a logic 1 and V
IL
max for a logic 0.
Figure 32.
Float Waveforms
Note:
For timing purposes, a port pin is no longer floating when a 100 mV change from load voltage occurs and begins to float when a
100 mV change from the loading V
OH
/V
OL
level occurs with I
OL
/I
OH
=
±
20 mA.
0.45 V
DD
- 0.5
0.7
V
DD
0.3
V
DD
V
IH
min
V
IL
max
INPUTS
OUTPUTS
V
LOAD
V
OH
- 0.1 V
V
OL
+ 0.1 V
V
LOAD
+ 0.1 V
V
LOAD
- 0.1 V
Timing Reference Points
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