MC908QY2AMDWE Freescale Semiconductor, MC908QY2AMDWE Datasheet - Page 111
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MC908QY2AMDWE
Manufacturer Part Number
MC908QY2AMDWE
Description
MCU 8BIT 1.5K FLASH W/ADC 16SOIC
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908QT1ACDWE.pdf
(200 pages)
Specifications of MC908QY2AMDWE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LVD, POR, PWM
Number Of I /o
13
Program Memory Size
1.5KB (1.5K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
16-SOIC (0.300", 7.5mm Width)
Processor Series
HC08QY
Core
HC08
Data Bus Width
8 bit
Data Ram Size
128 B
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
13
Number Of Timers
2
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68CBL05AE, DEMO908QB8, DEMO908QC16
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 6 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
Lead Free Status / Rohs Status
Details
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13.3.1 Bus Timing
In user mode, the internal bus frequency is the oscillator frequency (BUSCLKX4) divided by four.
13.3.2 Clock Start-Up from POR
When the power-on reset module generates a reset, the clocks to the CPU and peripherals are inactive
and held in an inactive phase until after the 4096 BUSCLKX4 cycle POR time out has completed. The
IBUS clocks start upon completion of the time out.
13.3.3 Clocks in Stop Mode and Wait Mode
Upon exit from stop mode by an interrupt or reset, the SIM allows BUSCLKX4 to clock the SIM counter.
The CPU and peripheral clocks do not become active until after the stop delay time out. This time out is
selectable as 4096 or 32 BUSCLKX4 cycles. See
In wait mode, the CPU clocks are inactive. The SIM also produces two sets of clocks for other modules.
Refer to the wait mode subsection of each module to see if the module is active or inactive in wait mode.
Some modules can be programmed to be active in wait mode.
13.4 Reset and System Initialization
The MCU has these reset sources:
All of these resets produce the vector $FFFE–FFFF ($FEFE–FEFF in monitor mode) and assert the
internal reset signal (IRST). IRST causes all registers to be returned to their default values and all
modules to be returned to their reset states.
An internal reset clears the SIM counter (see
the resets sets a corresponding bit in the SIM reset status register (SRSR). See
13.4.1 External Pin Reset
The RST pin circuits include an internal pullup device. Pulling the asynchronous RST pin low halts all
processing. The PIN bit of the SIM reset status register (SRSR) is set as long as RST is held low for at
least the minimum t
if the RSTEN bit is set in the CONFIG2 register.
Freescale Semiconductor
•
•
•
•
•
•
Power-on reset module (POR)
External reset pin (RST)
Computer operating properly module (COP)
Low-voltage inhibit module (LVI)
Illegal opcode
Illegal address
ADDRESS BUS
BUSCLKX2
RL
RST
time.
PC
Figure 13-3
MC68HC908QYA/QTA Family Data Sheet, Rev. 3
Figure 13-3. External Reset Timing
shows the relative timing. The RST pin function is only available
13.5 SIM
13.7.2 Stop
Counter), but an external reset does not. Each of
Mode.
VECT H VECT L
Reset and System Initialization
13.8 SIM
Registers.
111
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