MC68HC11E0CFN2 Freescale Semiconductor, MC68HC11E0CFN2 Datasheet - Page 52

• Manufacturer Part Number: MC68HC11E0CFN2
• Description: IC MCU 2MHZ 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC11E0CFN2

• 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
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

Operating Modes and On-Chip Memory
2.4 EPROM/OTPROM
Data Sheet
52
ADPU — Analog-to-Digital Converter Power-Up Bit
CSEL — Clock Select Bit
IRQE — Configure IRQ for Edge-Sensitive Only Operation Bit
DLY — Enable Oscillator Startup Delay Bit
CME — Clock Monitor Enable Bit
Bit 2 — Not implemented
CR[1:0] — COP Timer Rate Select Bits
Certain devices in the M68HC11 E series include on-chip EPROM/OTPROM. For
instance:
Standard MC68HC71E9 and MC68HC711E20 devices are shipped with the
EPROM/OTPROM contents erased (all 1s). The programming operation programs
zeros. Windowed devices must be erased using a suitable ultraviolet light source
before reprogramming. Depending on the light source, erasing can take from 15 to
45 minutes.
Refer to
Selects alternate clock source for on-chip EEPROM charge pump. Refer to
2.5.1 EEPROM and CONFIG Programming and Erasure
on EEPROM use.
CSEL also selects the clock source for the A/D converter, a function discussed
in
Refer to
Refer to
Always reads 0
The internal E clock is divided by 2
These control bits determine a scaling factor for the watchdog timer. Refer to
Section 5. Resets and
•
•
•
Section 3. Analog-to-Digital (A/D)
0 = The oscillator startup delay coming out of stop mode is bypassed and the
1 = A delay of approximately 4000 E-clock cycles is imposed as the MCU is
The MC68HC711E9 devices contain 12 Kbytes of on-chip EPROM
(OTPROM in non-windowed package).
The MC68HC711E20 has 20 Kbytes of EPROM (OTPROM in
non-windowed package).
The MC68HC711E32 has 32 Kbytes of EPROM (OTPROM in
non-windowed package).
Freescale Semiconductor, Inc.
For More Information On This Product,
MCU resumes processing within about four bus cycles.
started up from the stop power-saving mode. This delay allows the
crystal oscillator to stabilize.
Section 3. Analog-to-Digital (A/D)
Section 5. Resets and
Section 5. Resets and
Operating Modes and On-Chip Memory
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Interrupts.
Interrupts.
Interrupts.
15
before it enters the COP watchdog system.
Converter.
Converter.
M68HC11E Family — Rev. 5
for more information
MOTOROLA