MCF51QM32VFM Freescale Semiconductor, MCF51QM32VFM Datasheet - Page 27

• Manufacturer Part Number: MCF51QM32VFM
• Description: 32-bit Microcontrollers - MCU COLDFIREV1 32K FLASH
• Manufacturer: Freescale Semiconductor

Specifications of MCF51QM32VFM

• Core: ColdFire V1
• Processor Series: MCF51QM128
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 32 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.71 V to 3.6 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: QFN-32
• Mounting Style: SMD/SMT

6.3.2.2 Oscillator frequency specifications
1. Other frequency limits may apply when external clock is being used as a reference for the FLL or PLL.
2. When transitioning from FBE to FEI mode, restrict the frequency of the input clock so that, when it is divided by FRDIV, it
3. Proper PC board layout procedures must be followed to achieve specifications.
4. Crystal startup time is defined as the time between the oscillator being enabled and the OSCINIT bit in the MCG_S register
6.4
6.4.1 Flash (FTFL) electrical specifications
This section describes the electrical characteristics of the FTFL module.
6.4.1.1 Flash timing specifications — program and erase
The following specifications represent the amount of time the internal charge pumps are
active and do not include command overhead.
Freescale Semiconductor, Inc.
Symbol
f
f
f
t
osc_hi_1
osc_hi_2
ec_extal
dc_extal
f
remains within the limits of the DCO input clock frequency.
being set.
osc_lo
t
cst
Memories and memory interfaces
Oscillator crystal or resonator frequency — low
frequency mode (MCG_C2[RANGE]=00)
Oscillator crystal or resonator frequency — high
frequency mode (low range)
(MCG_C2[RANGE]=01)
Oscillator crystal or resonator frequency — high
frequency mode (high range)
(MCG_C2[RANGE]=1x)
Input clock frequency (external clock mode)
Input clock duty cycle (external clock mode)
Crystal startup time — 32 kHz low-frequency,
low-power mode (HGO=0)
Crystal startup time — 32 kHz low-frequency,
high-gain mode (HGO=1)
Crystal startup time — 8 MHz high-frequency
(MCG_C2[RANGE]=01), low-power mode
(HGO=0)
Crystal startup time — 8 MHz high-frequency
(MCG_C2[RANGE]=01), high-gain mode
(HGO=1)
Description
Table 16. Oscillator frequency specifications
MCF51QM128 Data Sheet, Rev. 6, 01/2012.
Min.
32
40
—
—
—
—
—
1
8
Typ.
750
250
0.6
50
—
—
—
—
1
Memories and memory interfaces
Max.
40
32
50
60
—
—
—
—
8
MHz
MHz
MHz
Unit
kHz
ms
ms
ms
ms
%
Notes
1,
3,
2
4
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