MC68HC11E0CFNE3 Freescale Semiconductor, MC68HC11E0CFNE3 Datasheet - Page 63

• Manufacturer Part Number: MC68HC11E0CFNE3
• Description: IC MCU 8BIT 3MHZ 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC11E0CFNE3

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 3MHz
• 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
• Controller Family/series: 68HC11
• No. Of I/o's: 38
• Ram Memory Size: 512Byte
• Cpu Speed: 3MHz
• No. Of Timers: 1
• Embedded Interface Type: SCI, SPI
• Digital Ic Case Style: LCC
• Rohs Compliant: Yes
• Processor Series: HC11E
• Core: HC11
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 3 MHz
• Number Of Programmable I/os: 38
• Number Of Timers: 8
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details

PORTA — Port A Data
PORTB — Port B Data
6.1 Port A
6.2 Port B
TECHNICAL DATA
Alt. Func:
RESET:
RESET:
RESET:
or Boot:
or Test:
And/or:
S. Chip
Expan.
The MC68HC11D3 has four 8-bit I/O ports; A, B, C, and D. In single-chip and bootstrap
modes, all ports are parallel I/O data ports. In expanded multiplexed and test modes,
ports B and C, and lines DATA6/AS and DATA7/R/W are a memory expansion bus
with port B as the high order address bus, port C as the multiplexed address and data
bus, AS as the demultiplexing signal, and R/W as the data bus direction control. Refer
to Table 6-1, which is a summary of the ports and their shared functions:
Port A bits handle the timer functions and can also be used as general-purpose I/O. In
both the normal operating modes, port A can be configured for four timer input capture
(IC) and three timer output compare (OC) functions, or four OC and three IC functions
with either a pulse accumulator input (PAI) or a fifth OC function.
*This pin is not bonded in the 40-pin version.
In single-chip mode, all port B pins are general-purpose I/O (PB[7:0]). In expanded
multiplexed mode, all port B pins act as high-order address bits (ADDR[15:8]).
Port C
Port D
Port A
Port B
Port
ADDR15
OC1
Bit 7
PA7
Bit 7
PB7
PB7
PAI
HiZ
Input Pins
ADDR14
PA6*
OC2
OC1
PB6
PB6
Freescale Semiconductor, Inc.
—
—
—
6
0
6
3
For More Information On This Product,
Reset configures pins as high-order address outputs
Output Pins
ADDR13
OC3
OC1
PA5
PB5
PB5
Go to: www.freescale.com
5
0
5
Table 6-1 I/O Ports
—
—
—
3
PARALLEL I/O
Reset configures pins as HiZ inputs
SECTION 6
PARALLEL I/O
ADDR12
PA4*
OC4
OC1
PB4
PB4
Bidirectional Pins
4
0
4
2
8
8
8
ADDR11
IC4/OC5
OC1
PA3
PB3
PB3
HiZ
3
3
Low Order Address and Data Bus
ADDR10
PA2
PB2
PB2
HiZ
IC1
—
2
2
SCI, SPI, AS, and R/
High Order Address
Shared Functions
TImer
ADDR9
PA1
PB1
PB1
HiZ
IC2
—
1
1
$0000
$0004
ADDR8
Bit 0
Bit 0
PA0
PB0
PB0
HiZ
IC3
—
6-1