MC68HC908QC16
MC68HC908QC8
MC68HC908QC4
Data Sheet
M68HC08
Microcontrollers
MC68HC908QC16
Rev. 3
04/2007
freescale.com
MC68HC908QC16
MC68HC908QC8
MC68HC908QC4
Data Sheet
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MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 3
Freescale Semiconductor
3
Revision History
The following revision history table summarizes changes contained in this document. For your
convenience, the page number designators have been linked to the appropriate location.
Revision History
Date
April, 2006
Revision
Level
1.0
Initial release
19.5 5-V DC Electrical Characteristics — Updated values
19.8 3.3-V DC Electrical Characteristics — Updated values
May, 2006
1.1
19.11 Oscillator Characteristics — Updated values
Figure 19-9. Typical 5-Volt Run Current versus Bus Frequency (25°C) and
Figure 19-10. Typical 3.3-Volt Run Current versus Bus Frequency (25°C) —
added
1.7 Unused Pin Termination — Added new section
11.2 Unused Pin Termination — Replaced note with new section
19.5 5-V DC Electrical Characteristics — New values for:
DC injection current
Low-voltage inhibit reset, trip rising voltage
October, 2006
2.0
19.8 3.3-V DC Electrical Characteristics — New values for:
DC injection current
Low-voltage inhibit reset, trip rising voltage
19.12 Supply Current Characteristics — New values for stop mode supply
currents at –40 to 125°C
20.3 Package Dimensions — Updated package dimension drawing for the
28-lead TSSOP.
Table 1-2. Pin Functions
— Added note
Figure 2-2. Control, Status, and Data Registers
— Corrected Port C Data
Register bit PTC3
Chapter 3 Analog-to-Digital Converter (ADC10) Module
— Renamed ADCSC
register to ADSCR to be consistent with development tools
Chapter 4 Configuration Registers (CONFIG1 and CONFIG2)
— Changed
CGMXCLK to BUSCLKX4
11.3 Port A
— Added information to first paragraph of note
April, 2007
3.0
11.3.1 Port A Data Register
— Corrected bit designations for the first entry
under
Figure 11-1. Port A Data Register (PTA).
11.5 Port C
— Added note and corrected address location designation in last
paragraph
Chapter 13 Enhanced Serial Communications Interface (ESCI) Module
—
Changed SCIBDSRC to ESCIBDSRC and CGMXCLK to BUSCLKX4
13.9.3 Bit Time Measurement
— Corrected first sentence of listing number 1
Figure 18-18. Monitor Mode Entry Timing
— Changed CGMXCLK to
BUSCLKX4
Description
Page
Number(s)
N/A
237
240
243
247
24
107
237
240
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261
22
27
45
60
107
108
112
113
123
150
234
MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 3
4
Freescale Semiconductor
List of Sections
Chapter 1 General Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Chapter 2 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Chapter 3 Analog-to-Digital Converter (ADC10) Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Chapter 4 Configuration Registers (CONFIG1 and CONFIG2) . . . . . . . . . . . . . . . . . . . . . . 59
Chapter 5 Computer Operating Properly (COP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Chapter 6 Central Processor Unit (CPU). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Chapter 7 External Interrupt (IRQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Chapter 8 Keyboard Interrupt Module (KBI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Chapter 9 Low-Voltage Inhibit (LVI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Chapter 10 Oscillator Mode (OSC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Chapter 11 Input/Output Ports (PORTS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Chapter 12 Periodic Wakeup Module (PWU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Chapter 13 Enhanced Serial Communications Interface (ESCI) Module . . . . . . . . . . . . . 123
Chapter 14 System Integration Module (SIM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Chapter 15 Serial Peripheral Interface (SPI) Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Chapter 16 Timer Interface Module (TIM1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .189
Chapter 17 Timer Interface Module (TIM2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205
Chapter 18 Development Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Chapter 19 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Chapter 20 Ordering Information and Mechanical Specifications . . . . . . . . . . . . . . . . . . 257
MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 3
Freescale Semiconductor
5
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