MC908QL4MDTER Freescale Semiconductor, MC908QL4MDTER Datasheet - Page 24

• Manufacturer Part Number: MC908QL4MDTER
• Description: IC MCU 8BIT 4K FLASH 16-TSSOP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908QL4MDTER

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: LIN (Local Interconnect Network)
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

General Description
1.5 Pin Function Priority
Table 1-2
shown in the table.
1.6 Unused Pin Termination
Input pins and I/O port pins that are not used in the application must be terminated. This prevents excess
current caused by floating inputs, and enhances immunity during noise or transient events. Termination
methods include:
Never connect unused pins directly to V
Since some general-purpose I/O pins are not available on all packages, these pins must be terminated
as well. Either method 1 or 2 above are appropriate.
24
1. Configuring unused pins as outputs and driving high or low;
2. Configuring unused pins as inputs and enabling internal pull-ups;
3. Configuring unused pins as inputs and using external pull-up or pull-down resistors.
defines the priority of a shared pin if multiple functions are enabled. Only the shared pins are
1. When a pin is to be used as an ADC pin, the I/O port function should be
2. TCLK is not included in the priority scheme. When TCLK is enabled the
left as an input. The ADC does not override the port data direction
register.
other shared functions in the pin should be disabled.
Pin Name
PTB2
PTB3
PTA0
PTA1
PTA4
PTA5
PTB0
PTB1
PTB4
PTB5
PTA2
PTA3
Table 1-2. Function Priority in Shared Pins
(1)
(1)
(1)
(1)
(1)
(1)
MC68HC908QL4 Data Sheet, Rev. 8
DD
AD0 → TCH1 → KBI0 → PTA0
AD1 → KBI1 → PTA1
TCLK → IRQ → KBI2 → PTA2
RST → KBI3 → PTA3
OSC2 → AD2 → KBI4 → PTA4
OSC1 → AD3 → KBI5 → PTA5
TCH0 → PTB0
PTB1
AD4 → PTB2
AD5 → PTB3
SLCRx → PTB4
SLCTx → PTB5
or V
Highest-to-Lowest Priority Sequence
SS
.
(2)
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