AN1740 Freescale Semiconductor / Motorola, AN1740 Datasheet - Page 35
![no-image](/images/no-image-200.jpg)
AN1740
Manufacturer Part Number
AN1740
Description
Applications Using the Analog Subsystem on MC68HC05JJ/JP Series Microcontrollers
Manufacturer
Freescale Semiconductor / Motorola
Datasheet
1.AN1740.pdf
(80 pages)
- Current page: 35 of 80
- Download datasheet (535Kb)
Input Limitations
AN1740
MOTOROLA
Avoid driving input pins below V
OFF, as the input protection diodes will start turning on at about –0.3
volts and inject high currents through the V
the input pins more than 0.3 volts above the V
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
T
V
DD
Figure 16. External Source Control
THERMISTOR
R1
R2
R3
OTHER CONNECTIONS TO PB1–PB4
HAVE BEEN OMITTED FOR CLARITY
TCMP
TCAP
AN4
PB4
AN1
AN2
AN3
V
PB1
PB2
PB3
SS
SS
, even if the channel multiplexers are
MUX4
MUX1
MUX2
MUX3
CHANNEL SELECT BUS
SS
pin. Similarly, avoid driving
DD
V
Analog Signal Multiplexers
supply level.
RTEMP
Application Note
35
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