AM186EM-20KC/W AMD [Advanced Micro Devices], AM186EM-20KC/W Datasheet - Page 53

• Manufacturer Part Number: AM186EM-20KC/W
• Description: High Performance, 80C186-/80C188-Compatible and 80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers
• Manufacturer: AMD [Advanced Micro Devices]

Power Supply Current
For the typical system specification shown in Figure 13,
I
clock. For the typical system specification shown in Fig-
ure 14, I
tem clock. The typical system is measured while the
system is executing code in a typical application with max-
imum voltage and at room temperature. Actual power sup-
ply current is dependent on system design and may be
greater or less than the typical I
Typical current in Figure 13 is given by:
Typical current in Figure 14 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:
................. I
................. I
CC
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
has been measured at 3.0 mA per MHz of system
CC
has been measured at 4.5 mA per MHz of sys-
CC
CC
= 3.0 mA freq(MHz).
= 4.5 mA freq(MHz).
Figure 14.
CC
measurements, the devices were
I
CC
(mA)
CC
Am186/188EM and Am186/188EMLV Microcontrollers
CC
Typical I
200
280
240
measurements are de-
160
120
80
40
0
figure presented here.
CC
Versus Frequency for the Am186EM and Am188EM
P R E L I M I N A R Y
10
20 MHz
Clock Frequency (MHz)
20
Table 7 shows the variables that are used to calculate
the typical power consumption value for each version
of the Am186EMLV and Am188EMLV microcontrol-
lers.
Table 7. Typical Power Consumption Calculation
Figure 13. Typical I
I
25 MHz
CC
(mA)
MHz
16
20
25
for the Am186EMLV and Am188EMLV
MHz I
30
100
140
120
33 MHz
Am186EMLV and Am188EMLV
40
20
80
60
0
CC
Typical I
Volts / 1000 = P
40
3.0
3.0
3.0
Clock Frequency (MHz)
40 MHz
CC
CC
10
Versus Frequency for the
Volts
3.6
3.6
3.6
16 MHz
20
20 MHz
Typical Power
in Watts
0.173
0.216
0.270
25 MHz
30
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