MC9S08QG84CFFER Freescale Semiconductor, MC9S08QG84CFFER Datasheet - Page 113

• Manufacturer Part Number: MC9S08QG84CFFER
• Description: IC MCU 8BIT 8K FLASH 16-QFN
• Manufacturer: Freescale Semiconductor
• Series: HCS08r

Specifications of MC9S08QG84CFFER

• Core Processor: HCS08
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 12
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-QFN
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Data Ram Size: 512 B
• On-chip Adc: Yes
• Number Of Programmable I/os: 12
• Number Of Timers: 1
• Mounting Style: SMD/SMT
• Height: 1 mm
• Interface Type: I2C, SCI, SPI
• Length: 5 mm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.8 V
• Width: 5 mm
• For Use With: DEMO9S08QG8E - BOARD DEMO FOR MC9S08QG8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

8.2
The ACMP has two analog input pins, ACMP+ and ACMP– and one digital output pin ACMPO. Each of
these pins can accept an input voltage that varies across the full operating voltage range of the MCU. As
shown in
ACMP+ pin is connected to the comparator non-inverting input if ACBGS is a 0. As shown in
the ACMPO pin can be enabled to drive an external pin.
The signal properties of ACMP are shown in
8.3
The ACMP includes one register:
Refer to the direct-page register summary in the memory section of this data sheet for the absolute address
assignments for all ACMP registers.This section refers to registers and control bits only by their names
and relative address offsets.
Some MCUs may have more than one ACMP, so register names include placeholder characters to identify
which ACMP is being referenced.
Freescale Semiconductor
•
An 8-bit status and control register
Figure
External Signal Description
Register Definition
8-2, the ACMP– pin is connected to the inverting input of the comparator, and the
ACMPO
ACMP–
ACMP+
Signal
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 5
Inverting analog input to the ACMP.
(Minus input)
Non-inverting analog input to the ACMP.
(Positive input)
Digital output of the ACMP.
Table 8-1. Signal Properties
Table
Function
8-1.
I/O
O
I
I
Analog Comparator (S08ACMPV2)
Figure
8-2,
111