MC68HC11E0CFNE2 Freescale Semiconductor, MC68HC11E0CFNE2 Datasheet - Page 21

IC MCU 8BIT 2MHZ 52-PLCC

MC68HC11E0CFNE2

Manufacturer Part Number
MC68HC11E0CFNE2
Description
IC MCU 8BIT 2MHZ 52-PLCC
Manufacturer
Freescale Semiconductor
Series
HC11r
Datasheets

Specifications of MC68HC11E0CFNE2

Core Processor
HC11
Core Size
8-Bit
Speed
2MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
38
Program Memory Type
ROMless
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
52-PLCC
Controller Family/series
68HC11
No. Of I/o's
38
Ram Memory Size
512Byte
Cpu Speed
2MHz
No. Of Timers
1
Embedded Interface Type
SCI, SPI
Digital Ic Case Style
LCC
Rohs Compliant
Yes
Processor Series
HC11E
Core
HC11
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SCI, SPI
Maximum Clock Frequency
2 MHz
Number Of Programmable I/os
38
Number Of Timers
8
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
RoHS Compliant part Electrostatic Device

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1.4.1 V
Power is supplied to the MCU through V
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.
Freescale Semiconductor
DD
and V
OPTIONAL POWER-ON DELAY AND MANUAL RESET SWITCH
RESET SWITCH
MANUAL
SS
4.7 kΩ
Figure 1-8. External Reset Circuit with Delay
V DD
Figure 1-7. External Reset Circuit
M68HC11E Family Data Sheet, Rev. 5.1
4.7 k Ω
1.0 µF
MC34(0/1)64
GND
V DD
IN
DD
2
3
RESET
and V
MC34164
GND
IN
1
RESET
SS
V DD
. V
4.7 kΩ
DD
is the power supply, V
MC34064
TO RESET
OF M68HC11
GND
V DD
IN
RESET
V DD
4.7 kΩ
SS
is ground. The MCU
TO RESET
OF M68HC11
Pin Descriptions
21

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