MC68HC711E20CFN2 Freescale Semiconductor, MC68HC711E20CFN2 Datasheet - Page 43

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

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

2.13.4 Port D
2.13.5 Port E
M68HC11E Family — Rev. 3.2
MOTOROLA
CAUTION:
Pins PD5–PD0 can be used for general-purpose I/O signals. These pins
alternately serve as the serial communication interface (SCI) and serial
peripheral interface (SPI) signals when those subsystems are enabled.
Use port E for general-purpose or analog-to-digital (A/D) inputs.
If high accuracy is required for A/D conversions, avoid reading port E
during sampling, as small disturbances can reduce the accuracy of that
result.
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•
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PD0 is the receive data input (RxD) signal for the SCI.
PD1 is the transmit data output (TxD) signal for the SCI.
PD5–PD2 are dedicated to the SPI:
– PD2 is the master in/slave out (MISO) signal.
– PD3 is the master out/slave in (MOSI) signal.
– PD4 is the serial clock (SCK) signal.
– PD5 is the slave select (SS) input.
Pin Descriptions
Pin Descriptions
Technical Data
Port Signals
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