MC68HC11E1CFN3 Freescale Semiconductor, MC68HC11E1CFN3 Datasheet - Page 109

• Manufacturer Part Number: MC68HC11E1CFN3
• Description: IC MCU 3MHZ 512 EEPROM 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC11E1CFN3

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 38
• Program Memory Type: ROMless
• Eeprom Size: 512 x 8
• 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
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 3 MHz
• Number Of Programmable I/os: 22
• Number Of Timers: 16 bit
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details

6.1 Introduction
6.2 Port A
M68HC11E Family — Rev. 5
MOTOROLA
Data Sheet — M68HC11E Family
All M68HC11 E-series MCUs have five input/output (I/O) ports and up to 38 I/O
lines, depending on the operating mode. Refer to
ports and their shared functions.
Port pin function is mode dependent. Do not confuse pin function with the electrical
state of the pin at reset. Port pins are either driven to a specified logic level or are
configured as high-impedance inputs. I/O pins configured as high-impedance
inputs have port data that is indeterminate.
In port descriptions, an I indicates this condition. Port pins that are driven to a
known logic level during reset are shown with a value of either 1 or 0. Some control
bits are unaffected by reset. Reset states for these bits are indicated with a U.
Port A shares functions with the timer system and has:
Port A
Port B
Port C
Port D
Port E
Port
•
•
•
Three input-only pins
Three output-only pins
Two bidirectional I/O pins
Freescale Semiconductor, Inc.
For More Information On This Product,
Input
Pins
—
—
—
3
8
Parallel Input/Output (I/O) Ports
Go to: www.freescale.com
Output
Pins
—
—
—
3
8
Section 6. Parallel Input/Output (I/O) Ports
Table 6-1. Input/Output Ports
Bidirectional
Pins
—
—
2
8
6
Timer
High-order address
Low-order address and data bus
Serial communications interface (SCI)
and serial peripheral interface (SPI)
Analog-to-digital (A/D) converter
Table 6-1
Shared Functions
for a summary of the
Data Sheet
109