AM186ED AMD [Advanced Micro Devices], AM186ED Datasheet - Page 50

• Manufacturer Part Number: AM186ED
• Description: High Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers
• Manufacturer: AMD [Advanced Micro Devices]

CAPACITANCE
Note:
Capacitance limits are guaranteed by characterization.
POWER SUPPLY CURRENT
For the following typical system specification shown in
Figure 11, I
of system clock. For the following typical system
specification shown in Figure 12, I
measured at 5.9 mA per MHz of system clock. The
typical system is measured while the system is
executing code in a typical application with nominal
voltage and maximum case temperature. Actual power
supply current is dependent on system design and may
be greater or less than the typical I
here.
Typical current in Figure 11 is given by:
Typical current in Figure 12 is given by:
Please note that dynamic I
pendent upon chip activity, operating frequency, output
buffer logic, and capacitive/resistive loading of the out-
puts. For these I
set to the following modes:
50
Symbol
No DC loads on the output buffers
Output capacitive load set to 35 pF
AD bus set to data only
PIOs are disabled
Timer, serial port, refresh, and DMA are enabled
C
C
IN
IO
I
I
CC
CC
Input Capacitance
Output or I/O Capacitance
CC
= 4.0 mA freq(MHz)
= 5.9 mA freq(MHz)
has been measured at 4.0 mA per MHz
CC
Figure 12. Typical I
measurements, the devices were
I
CC
Parameter Description
(mA)
CC
200
280
240
160
120
80
40
0
measurements are de-
CC
figure presented
Am186ED/EDLV Microcontrollers
CC
cc
10
P R E L I M I N A R Y
has been
Versus Frequency for Am186ED Microcontroller
Clock Frequency (MHz)
20
20 MHz
@ 1 MHz
@ 1 MHz
Table 10 shows the variables that are used to calculate
t he t y p i c a l p o we r c o n s um p t i o n v a l u e f o r t h e
Am186EDLV microcontroller.
Table 10. Typical Power Consumption Calculation
I
CC
Test Conditions
25 MHz
Figure 11. Typical I
(mA)
MHz
20
25
30
MHz I
100
for the Am186EDLV Microcontroller
140
120
40
20
80
60
0
Am186EDLV Microcontroller
33 MHz
CC
Typical I
Volts / 1000 = P
40
40 MHz
4.0
4.0
Clock Frequency (MHz)
CC
10
cc
Min
Versus Frequency for
Preliminary
50
Volts
3.6
3.6
20
20 MHz
Max
10
20
Typical Power
in Watts
25 MHz
0.288
0.360
Unit
pF
pF
30