MC68HC908QT2CPE Freescale, MC68HC908QT2CPE Datasheet - Page 154
MC68HC908QT2CPE
Manufacturer Part Number
MC68HC908QT2CPE
Description
Manufacturer
Freescale
Datasheet
1.MC68HC908QT2CPE.pdf
(184 pages)
Specifications of MC68HC908QT2CPE
Cpu Family
HC08
Device Core Size
8b
Frequency (max)
8MHz
Total Internal Ram Size
128Byte
# I/os (max)
6
Number Of Timers - General Purpose
2
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
On-chip Adc
4-chx8-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Through Hole
Pin Count
8
Package Type
PDIP
Program Memory Type
Flash
Program Memory Size
1.5KB
Lead Free Status / RoHS Status
Compliant
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Electrical Specifications
16.8 5-V Oscillator Characteristics
154
Internal oscillator frequency
Deviation from trimmed Internal oscillator
Crystal frequency, XTALCLK
External RC oscillator frequency, RCCLK
External clock reference frequency
Crystal load capacitance
Crystal fixed capacitance
Crystal tuning capacitance
Feedback bias resistor
RC oscillator external resistor
Crystal series damping resistor
1. Bus frequency, f
2. Deviation values assumes trimming @25•C and midpoint of voltage range.
3. Values are based on characterization results, not tested in production.
4. No more than 10% duty cycle deviation from 50%.
5. Consult crystal vendor data sheet.
12.8 MHz, fixed voltage, fixed temp
12.8 MHz, V
12.8 MHz, V
f
f
f
OSCXCLK
OSCXCLK
OSCXCLK
= 1 MHz
= 4 MHz
= > 8 MHz
DD
DD
± 10%, 0 to 70°C
± 10%, –40 to 125°C
Characteristic
OP
14
12
10
8
6
4
2
0
, is oscillator frequency divided by 4.
0
(5)
(3)
(3)
(1)
(1)
Figure 16-4. RC versus Frequency (5 Volts @ 25•C)
(1) (4)
10
MC68HC908QY/QT Family Data Sheet, Rev. 6
(1)
(2)(3)
20
f
f
Symbol
OSCXCLK
OSCXCLK
ACC
f
f
INTCLK
RCCLK
R
R
R
C
C
C
EXT
R
L
1
2
B
S
EXT
INT
30
(k Ω )
Min
0.5
—
—
—
—
dc
—
—
—
—
—
—
1
2
40
See
Figure 16-4
2 x C
2 x C
± 0.4
12.8
Typ
± 2
20
20
10
—
—
—
—
1
0
50
L
L
5 V 25°C
Freescale Semiconductor
Max
± 5
24
12
32
10
—
—
—
—
—
—
—
—
—
60
MHz
MHz
MHz
MHz
Unit
MΩ
kΩ
pF
—
—
—
%
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