MC908QB8CDTE Freescale Semiconductor, MC908QB8CDTE Datasheet - Page 183
MC908QB8CDTE
Manufacturer Part Number
MC908QB8CDTE
Description
IC MCU 8BIT 8K FLASH 16-TSSOP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908QB8CDWE.pdf
(236 pages)
Specifications of MC908QB8CDTE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
13
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 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
16-TSSOP
Processor Series
HC08QB
Core
HC08
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
3-Wire/ESCI/SPI/UART
Number Of Programmable I/os
13
Number Of Timers
4
Operating Supply Voltage
3 V to 5 V
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
DEMO908QB8 - BOARD DEMO FOR MC68HC908QB8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908QB8CDTE
Manufacturer:
SMD
Quantity:
38
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16.7 I/O Signals
The TIM module can share its pins with the general-purpose I/O pins. See
that are shared.
16.7.1 TIM Channel I/O Pins (TCH3:TCH0)
Each channel I/O pin is programmable independently as an input capture pin or an output compare pin.
TCH0 and TCH2 can be configured as buffered output compare or buffered PWM pins.
16.7.2 TIM Clock Pin (TCLK)
TCLK is an external clock input that can be the clock source for the counter instead of the prescaled
internal bus clock. Select the TCLK input by writing 1s to the three prescaler select bits, PS[2:0].
(See
Interface Module
frequency ÷ 2.
16.8 Registers
The following registers control and monitor operation of the TIM:
16.8.1 TIM Status and Control Register
The TIM status and control register (TSC) does the following:
TOF — TIM Overflow Flag Bit
Freescale Semiconductor
•
•
•
•
•
•
•
•
•
•
This read/write flag is set when the counter reaches the modulo value programmed in the TIM counter
modulo registers. Clear TOF by reading the TSC register when TOF is set and then writing a 0 to TOF.
If another TIM overflow occurs before the clearing sequence is complete, then writing 0 to TOF has no
16.8.1 TIM Status and Control
TIM status and control register (TSC)
TIM control registers (TCNTH:TCNTL)
TIM counter modulo registers (TMODH:TMODL)
TIM channel status and control registers (TSC0 through TSC3)
TIM channel registers (TCH0H:TCH0L through TCH3H:TCH3L)
Enables TIM overflow interrupts
Flags TIM overflows
Stops the counter
Resets the counter
Prescales the counter clock
Reset:
Read:
Write:
Characteristics. The maximum TCLK frequency is the least of 4 MHz or bus
Bit 7
TOF
0
0
Figure 16-4. TIM Status and Control Register (TSC)
= Unimplemented
TOIE
6
0
Register.) The minimum TCLK pulse width is specified in
MC68HC908QB8 Data Sheet, Rev. 3
TSTOP
5
1
TRST
0
4
0
3
0
0
PS2
2
0
Figure 16-1
PS1
1
0
Bit 0
PS0
0
for the port pins
18.16 Timer
I/O Signals
183
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