MC68HC705C8ACFN Freescale Semiconductor, MC68HC705C8ACFN Datasheet - Page 81

IC MCU 4MHZ 8K OTP 44-PLCC

MC68HC705C8ACFN

Manufacturer Part Number
MC68HC705C8ACFN
Description
IC MCU 4MHZ 8K OTP 44-PLCC
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet

Specifications of MC68HC705C8ACFN

Core Processor
HC05
Core Size
8-Bit
Speed
2.1MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
24
Program Memory Size
8KB (8K x 8)
Program Memory Type
OTP
Ram Size
304 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-

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7.4 Port B
7.4.1 Port B Data Register
MC68HC705C8A — Rev. 3
MOTOROLA
Address:
Port B is an 8-bit, general-purpose, bidirectional I/O port. Port B pins can
also be configured to function as external interrupts. The port B pullup
devices are enabled in mask option register 1 (MOR1). See
Option Register 1
The port B data register (PORTB) shown in
latch for each of the eight port B pins.
PB7–PB0 — Port B Data Bits
Reset:
Read:
Write:
These read/write bits are software programmable. Data direction of
each bit is under the control of the corresponding bit in data direction
register B. Reset has no effect on port B data.
Freescale Semiconductor, Inc.
For More Information On This Product,
$0001
Bit 7
PB7
Go to: www.freescale.com
Figure 7-4. Port B Data Register (PORTB)
Parallel Input/Output (I/O)
PB6
6
and
4.3.3 Port B
PB5
5
Unaffected by reset
PB4
4
Interrupts.
PB3
3
Figure 7-4
PB2
Parallel Input/Output (I/O)
2
contains a data
PB1
1
Technical Data
9.5.2 Mask
Bit 0
PB0
Port B
81

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