MC68HRC908JK3CP Freescale Semiconductor, MC68HRC908JK3CP Datasheet - Page 156
MC68HRC908JK3CP
Manufacturer Part Number
MC68HRC908JK3CP
Description
IC MCU FLASH 8B 8MHZ RC 4K 20DIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC908JK1CDW.pdf
(212 pages)
Specifications of MC68HRC908JK3CP
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LED, LVD, POR, PWM
Number Of I /o
15
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.3 V
Data Converters
A/D 12x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Connectivity
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68HRC908JK3CP
Manufacturer:
FREECAL
Quantity:
20 000
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I/O Ports
Technical Data
154
NOTE:
DDRB[7:0] — Data Direction Register B Bits
Avoid glitches on port B pins by writing to the port B data register before
changing data direction register B bits from 0 to 1.
the port B I/O logic.
When DDRBx is a logic 1, reading address $0001 reads the Hotbox data
latch. When DDRBx is a logic 0, reading address $0001 reads the
voltage level on the pin. The data latch can always be written, regardless
of the state of its data direction bit.
of the port B pins.
DDRB Bit
1. X = don’t care
2. Hi-Z = high impedance
3. Writing affects data register, but does not affect the input.
These read/write bits control port B data direction. Reset clears
DDRB[7:0], configuring all port B pins as inputs.
0
1
1 = Corresponding port B pin configured as output
0 = Corresponding port B pin configured as input
READ DDRB ($0005)
WRITE DDRB ($0005)
WRITE PTB ($0001)
READ PTB ($0001)
PTB Bit
X
X
(1)
Table 12-2. Port B Pin Functions
Figure 12-8. Port B I/O Circuit
I/O Ports
RESET
I/O Pin Mode
Input, Hi-Z
Output
(2)
DDRBx
PTBx
Table
Accesses to DDRB
DDRB7-DDRB0
DDRB7-DDRB0
Read/Write
12-2summarizes the operation
MC68H(R)C908JL3
To Analog-To-Digital Converter
Freescale Semiconductor
Figure 12-8
Read
Accesses to PTB
Pin
Pin
PTB[7:0]
PTB[7:0]
—
shows
Write
Rev. 1.1
PTBx
(3)
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