MC9S08QG8CPBE Freescale, MC9S08QG8CPBE Datasheet - Page 84
MC9S08QG8CPBE
Manufacturer Part Number
MC9S08QG8CPBE
Description
Manufacturer
Freescale
Datasheet
1.MC9S08QG8CPBE.pdf
(314 pages)
Specifications of MC9S08QG8CPBE
Cpu Family
HCS08
Device Core Size
8b
Frequency (max)
20MHz
Interface Type
I2C/SCI/SPI
Total Internal Ram Size
512Byte
# I/os (max)
12
Number Of Timers - General Purpose
1
Operating Supply Voltage (typ)
2.5/3.3V
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
1.8V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Through Hole
Pin Count
16
Package Type
PDIP
Program Memory Type
Flash
Program Memory Size
8KB
Lead Free Status / RoHS Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S08QG8CPBE
Manufacturer:
CYPRESS
Quantity:
310
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1
Chapter 6 Parallel Input/Output Control
6.4.2.3
An output pin can be selected to have high output drive strength by setting the corresponding bit in the
drive strength select register (PTADS). When high drive is selected, a pin is capable of sourcing and
sinking greater current. Even though every I/O pin can be selected as high drive, the user must ensure that
the total current source and sink limits for the chip are not exceeded. Drive strength selection is intended
to affect the DC behavior of I/O pins. However, the AC behavior is also affected. High drive allows a pin
to drive a greater load with the same switching speed as a low drive enabled pin into a smaller load.
Because of this the EMC emissions may be affected by enabling pins as high drive.
6.4.2.4
82
PTADS[5:0]
Reset:
PTADS5 has no effect on the input-only PTA5 pin.
Field
5:0
W
R
Output Drive Strength Selection for Port A Bits — Each of these control bits selects between low and high
output drive for the associated PTA pin. For port A pins that are configured as inputs, these bits have no effect.
0 Low output drive strength selected for port A bit n.
1 High output drive strength selected for port A bit n.
Port A Drive Strength Select (PTADS)
Port A Drive Strength Select (PTADS)
0
7
0
Figure 6-8. Drive Strength Selection for Port A Register (PTADS)
0
0
6
Table 6-5. PTADS Register Field Descriptions
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 5
PTADS5
0
5
1
PTADS4
0
4
Description
PTADS3
3
0
PTADS2
0
2
PTADS1
Freescale Semiconductor
0
1
PTADS0
0
0
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