IC MCU 8BIT 3MHZ 52-PLCC

MC68HC11E0CFNE3

Manufacturer Part NumberMC68HC11E0CFNE3
DescriptionIC MCU 8BIT 3MHZ 52-PLCC
ManufacturerFreescale Semiconductor
SeriesHC11
MC68HC11E0CFNE3 datasheets
 


Specifications of MC68HC11E0CFNE3

Core ProcessorHC11Core Size8-Bit
Speed3MHzConnectivitySCI, SPI
PeripheralsPOR, WDTNumber Of I /o38
Program Memory TypeROMlessRam Size512 x 8
Voltage - Supply (vcc/vdd)4.5 V ~ 5.5 VData ConvertersA/D 8x8b
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
Package / Case52-PLCCController Family/series68HC11
No. Of I/o's38Ram Memory Size512Byte
Cpu Speed3MHzNo. Of Timers1
Embedded Interface TypeSCI, SPIDigital Ic Case StyleLCC
Rohs CompliantYesProcessor SeriesHC11E
CoreHC11Data Bus Width8 bit
Data Ram Size512 BInterface TypeSCI, SPI
Maximum Clock Frequency3 MHzNumber Of Programmable I/os38
Number Of Timers8Maximum Operating Temperature+ 85 C
Mounting StyleSMD/SMTMinimum Operating Temperature- 40 C
On-chip Adc8 bit, 8 ChannelLead Free Status / RoHS StatusLead free / RoHS Compliant
Eeprom Size-Program Memory Size-
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Freescale Semiconductor, Inc.
2.10.1 Port A
Port A can be read at any time. Inputs return the pin level; outputs return the pin driver
input level. If written, port A stores the data in an internal latch. It drives the pins only
if they are configured as outputs. Writes to port A do not change the pin state when
the pins are configured for timer output compares.
Out of reset, port A bits 7 and [3:0] are general high impedance inputs, while bits [6:4]
are outputs, driving low. Bidirectional lines PA7 and PA3 in PACTL are not changed
and do not have any effect on those bits. When the output compare functions associ-
ated with these pins are disabled, the DDR bits in PACTL govern the I/O state.
Refer to SECTION 6 PARALLEL I/O.
2.10.2 Port B
Port B is an 8-bit general-purpose I/O port with a data register (PORTB) and a data
direction register (DDRB). In single-chip mode, port B pins are general-purpose I/O
pins (PB[7:0]). In the expanded multiplexed mode, all of the port B pins act as the high-
order address bits (ADDR[15:8]) of the address bus.
Port B can be read at any time. Inputs return the sensed levels at the pin, while outputs
return the input level of the port B pin drivers. If port B is written, the data is stored in
an internal latch and can be driven only if port B is configured as general-purpose out-
puts in single-chip or bootstrap modes.
Port B pins are general-purpose inputs out of reset in single-chip and bootstrap
modes. These pins are outputs (the high order address bits) out of reset in expanded
multiplexed and test modes.
Refer to SECTION 6 PARALLEL I/O.
2.10.3 Port C
Port C is an 8-bit general-purpose I/O port with a data register (PORTC) and a data
direction register (DDRC). In the single-chip mode, port C pins are general-purpose I/
O pins (PC[7:0]). In the expanded multiplexed mode, port C pins are configured as
multiplexed address/data pins. During the address cycle, bits [7:0] of the address are
output on PC[7:0]. During the data cycle, bits [7:0] (PC[7:0]) are bidirectional data pins
controlled by the R/W signal.
Port C can be read at any time. Inputs return the sensed levels at the pin, while outputs
return the input level of the port C pin drivers. If port C is written, the data is stored in
an internal latch and can be driven only if port C is configured for general-purpose out-
puts in single-chip or bootstrap mode. Port C pins are general-purpose inputs out of
reset in single-chip and bootstrap modes. These pins are multiplexed low-order ad-
dress and data bus lines out of reset in expanded multiplexed and test modes.
The CWOM control bit in the PIOC register disables port C's P-channel output driver.
CWOM simultaneously affects all eight bits of port C. Because the N-channel driver is
not affected by CWOM, setting CWOM causes port C to become an open-drain-type
TECHNICAL DATA
For More Information On This Product,
PIN DESCRIPTIONS
Go to: www.freescale.com
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