MC68HC711E20CFN2 Freescale Semiconductor, MC68HC711E20CFN2 Datasheet - Page 66

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MC68HC711E20CFN2

Manufacturer Part Number
MC68HC711E20CFN2
Description
IC MCU 20K 2MHZ OTP 52-PLCC
Manufacturer
Freescale Semiconductor
Series
HC11r
Datasheets

Specifications of MC68HC711E20CFN2

Core Processor
HC11
Core Size
8-Bit
Speed
2MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
38
Program Memory Size
20KB (20K x 8)
Program Memory Type
OTP
Eeprom Size
512 x 8
Ram Size
768 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
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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Operating Modes and On-Chip Memory
4.2 Introduction
4.3 Operating Modes
4.3.1 Single-Chip Mode
Technical Data
66
NOTE:
This section contains information about the operating modes and the
on-chip memory for M68HC11 E-series MCUs. Except for a few minor
differences, operation is identical for all devices in the E series.
Differences are noted where necessary.
The values of the mode select inputs MODB and MODA during reset
determine the operating mode. Single-chip and expanded multiplexed
are the normal modes.
Each of the two normal modes is paired with a special mode:
In single-chip mode, ports B and C and strobe pins A (STRA) and B
(STRB) are available for general-purpose parallel input/output (I/O). In
this mode, all software needed to control the MCU is contained in
internal resources. If present, read-only memory (ROM) and/or erasable,
programmable read-only memory (EPROM) will always be enabled out
of reset, ensuring that the reset and interrupt vectors will be available at
locations $FFC0–$FFFF.
For the MC68HC811E2, the vector locations are the same; however,
they are contained in the 2048-byte EEPROM array.
In single-chip mode only on-chip memory is available.
Expanded mode, however, allows access to external memory.
Bootstrap, a variation of the single-chip mode, is a special mode
that executes a bootloader program in an internal bootstrap ROM.
Test is a special mode that allows privileged access to internal
resources.
Operating Modes and On-Chip Memory
M68HC11E Family — Rev. 3.2
MOTOROLA

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