MC908QC16CDZE Freescale Semiconductor, MC908QC16CDZE Datasheet - Page 104

• Manufacturer Part Number: MC908QC16CDZE
• Description: IC MCU 8BIT 16K FLASH 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908QC16CDZE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: HC08QC
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: ESCI/SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 26
• Number Of Timers: 6
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68CBL05AE, DEMO908QB8, DEMO908QC16
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10-ch x 10-bit
• For Use With: DEMO908QC16 - BOARD DEMO FOR MC908QC16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Oscillator Mode (OSC)
OSCOPT1:OSCOPT0 — OSC Option Bits
ICFS1:ICFS0 — Internal Clock Frequency Select Bits
ECFS1:ECFS0 — External Crystal Frequency Select Bits
ECGON — External Clock Generator On Bit
104
These read/write bits allow the user to change the clock source for the MCU. The default reset
condition has the bus clock being derived from the internal oscillator. See
Clock Switching
These read/write bits enable the frequency to be increased for applications requiring a faster bus clock
when running off the internal oscillator. The WAIT instruction has no effect on the oscillator logic.
BUSCLKX2 and BUSCLKX4 continue to drive to the SIM module.
These read/write bits enable the specific amplifier for the crystal frequency range. Refer to oscillator
characteristics table in the Electricals section for information on maximum external clock frequency
versus supply voltage.
This read/write bit enables the OSC1 pin as the clock input to the MCU, so that the switching process
can be initiated. This bit is cleared by reset. This bit is ignored in monitor mode with the internal
oscillator bypassed.
1 = External clock enabled
0 = External clock disabled
Reset:
Read:
Write:
OSCOPT1
ECFS1
ICFS1
Figure 10-4. Oscillator Status and Control Register (OSCSC)
for information on changing clock sources.
MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 5
OSCOPT1
0
0
1
1
0
0
1
1
0
0
1
1
Bit 7
0
= Unimplemented
OSCOPT0
OSCOPT0
ECFS0
ICFS0
6
0
0
1
0
1
0
1
0
1
0
1
0
1
ICFS1
4.0 MHz — default reset condition
8.0 MHz
12.8 MHz
25.6 MHz
8 MHz – 32 MHz
1 MHz – 8 MHz
32 kHz – 100 kHz
Reserved
Internal oscillator (frequency selected using ICFSx bits)
External oscillator clock
External RC
External crystal (range selected using ECFSx bits)
5
0
ICFS0
4
0
External Crystal Frequency
Internal Clock Frequency
Oscillator Modes
ECFS1
3
0
ECFS0
2
0
ECGON
10.3.2.2 Internal to External
1
0
Freescale Semiconductor
ECGST
Bit 0
0