MC68HC908JL8CP Freescale Semiconductor, MC68HC908JL8CP Datasheet - Page 191

• Manufacturer Part Number: MC68HC908JL8CP
• Description: IC MCU 8K FLASH 8MHZ 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JL8CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 23
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 13x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

17.10 3V Oscillator Characteristics
Freescale Semiconductor
Internal oscillator clock frequency
External reference clock to OSC1
Crystal reference frequency
Crystal load capacitance
Crystal fixed capacitance
Crystal tuning capacitance
Feedback bias resistor
Series resistor
External RC clock frequency
RC oscillator external R
RC oscillator external C
1. Typical value reflect average measurements at midpoint of voltage range, 25 °C only. See
2. No more than 10% duty cycle deviation from 50%.
3. Fundamental mode crystals only.
4. Consult crystal vendor data sheet.
5. Not required for high frequency crystals.
14
12
10
8
6
4
2
0
0
(3), (5)
Characteristic
MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1
(4)
(3)
(3)
10
(3)
(2)
Figure 17-4. RC vs. Frequency (3V @25°C)
Table 17-9. Oscillator Specifications (3V)
Resistor, R
20
EXT
30
f
Symbol
(kΩ)
XTALCLK
f
RCCLK
R
C
f
f
ICLK
OSC
R
R
C
C
C
EXT
EXT
B
S
L
1
2
C
3V @ 25°C
EXT
= 10 pF
40
Min
2M
dc
—
—
—
—
—
—
See
50
10 MΩ
Figure 17-4
2 × C
2 × C
45k
Typ
—
—
—
—
—
10
(1)
L
L
V
DD
Figure 17-5
3V Oscillator Characteristics
R
EXT
Max
16M
16M
10M
—
—
—
—
—
—
OSC1
for plot.
MCU
C
EXT
Unit
Hz
Hz
Hz
Hz
pF
Ω
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