MC68HC711E20CFS2 MOTOROLA [Motorola, Inc], MC68HC711E20CFS2 Datasheet - Page 23
MC68HC711E20CFS2
Manufacturer Part Number
MC68HC711E20CFS2
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC711E20CFS2.pdf
(268 pages)
- Current page: 23 of 268
- Download datasheet (4Mb)
1.4.1 V
M68HC11E Family — Rev. 5
MOTOROLA
DD
and V
SS
Power is supplied to the MCU through V
is ground. The MCU operates from a single 5-volt (nominal) power supply.
Low-voltage devices in the E series operate at 3.0–5.5 volts.
Very fast signal transitions occur on the MCU pins. The short rise and fall times
place high, short duration current demands on the power supply. To prevent noise
problems, provide good power supply bypassing at the MCU. Also, use bypass
capacitors that have good
high-frequency characteristics and situate them as close to the MCU as possible.
Bypass requirements vary, depending on how heavily the MCU pins are loaded.
OPTIONAL POWER-ON DELAY AND MANUAL RESET SWITCH
RESET SWITCH
Freescale Semiconductor, Inc.
MANUAL
For More Information On This Product,
4.7 kΩ
Figure 1-8. External Reset Circuit with Delay
Go to: www.freescale.com
General Description
V DD
Figure 1-7. External Reset Circuit
4.7 k Ω
1.0 µF
MC34(0/1)64
GND
V DD
IN
2
3
RESET
MC34164
GND
IN
1
RESET
DD
V DD
and V
4.7 kΩ
SS
MC34064
TO RESET
OF M68HC11
. V
GND
V DD
IN
DD
RESET
is the power supply, V
V DD
General Description
4.7 kΩ
Pin Descriptions
Data Sheet
TO RESET
OF M68HC11
SS
23
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