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68HC705SP7 датащи(PDF) 107 Page - Freescale Semiconductor, Inc

номер детали 68HC705SP7
подробное описание детали  General Release Specification
PDF  230 Pages
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производитель  FREESCALE [Freescale Semiconductor, Inc]
домашняя страница  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

68HC705SP7 датащи(HTML) 107 Page - Freescale Semiconductor, Inc

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Analog Subsystem
Analog Multiplex Register
MC68HC705JJ7/MC68HC705JP7 — Rev. 3.0
General Release Specification
Analog Subsystem
Figure 8-3. Comparator 2 Input Circuit
-
+
COMP2
SAMPLE
HOLD
DHOLD
CAP
TEMPERATURE
DIODE
INTERNAL
VOFF
VSS
OFFSET
OPT (MOR)
CHANNEL
PB0
SELECTION
BUS
VDD
Table 8-1 Comparator 2 Input Sources
Case
HOLD
(AMUX)
DHOLD
(AMUX)
OPT
(MOR)
VOFF
(ASR)
Voltage
Offset
Source To Negative Input
of Comparator 2
Hold
Sample
Voltage
00
0X
No
Sample capacitor connected to comparator
2 negative input; very low leakage current.
10
11
Yes
Sample capacitor connected to comparator
2 negative input; bottom of capacitor
offset from VSS by approximately 100 mV,
very low leakage current.
Divided
Input
01
X
X
No
Signal on channel selection bus is divided
by 2 and connected to sample capacitor
and comparator 2 negative input
Direct
Input
10
X
X
No
Signal on channel selection bus is
connected directly to sample capacitor
and comparator 2 negative input.
Internal
Temperature
Diode
11
X
X
No
Internal temperature sensing diode
connected directly to sample capacitor
and comparator 2 negative input.
X = Don’t Care
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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