MC68HC705KJ1CP Freescale Semiconductor, MC68HC705KJ1CP Datasheet - Page 66

• Manufacturer Part Number: MC68HC705KJ1CP
• Description: IC MCU 4MHZ 1.2K OTP 16-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705KJ1CP

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 10
• Program Memory Size: 1.2KB (1.2K x 8)
• Program Memory Type: OTP
• Ram Size: 64 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

Parallel I/O Ports (PORTS)
7.2.4 Port LED Drive Capability
All outputs can drive light-emitting diodes (LEDs). These pins can sink approximately 10 mA of current to
V
7.2.5 Port A I/O Pin Interrupts
If the PIRQ bit in the mask option register is programmed to logic 1, PA0–PA3 pins function as external
interrupt pins. (See
7.3 Port B
Port B is a 2-bit bidirectional port.
7.3.1 Port B Data Register
The port B data register contains a latch for each port B pin.
PB[3:2] — Port B Data Bits
These read/write bits are software programmable. Data direction of each port B pin is under the control
of the corresponding bit in data direction register B. Reset has no effect on port B data.
66
SS
.
Note:
Address:
PB4–PB5 and PB0–PB1 should be configured as inputs at all times. These
bits are available for read/write but are not available externally. Configuring
them as inputs will ensure that the pulldown devices are enabled, thus
properly terminating them.
Reset:
PB5, PB4, PB1, and PB0 should be configured as inputs at all times. These bits are avail-
Read:
Write:
able for read/write but are not available externally. Configuring them as inputs will ensure
that the pulldown devices are enabled, thus properly terminating them.
MC68HC705KJ1 • MC68HRC705KJ1 • MC68HLC705KJ1 Data Sheet, Rev. 4.1
Chapter 5 External Interrupt Module
$0001
Bit 7
0
Figure 7-6. Port B Data Register (PORTB)
= Unimplemented
6
0
5
See Note
NOTE
Unaffected by reset
4
(IRQ).)
PB3
3
PB2
2
1
See Note
Freescale Semiconductor
Bit 0