MK21DN512VMC5 Freescale Semiconductor, MK21DN512VMC5 Datasheet - Page 34

• Manufacturer Part Number: MK21DN512VMC5
• Description: ARM Microcontrollers - MCU ARM+512Kb+USB+DryIce
• Manufacturer: Freescale Semiconductor

Specifications of MK21DN512VMC5

• Core: ARM Cortex M4
• Processor Series: MK21DN512
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 512 KB
• Data Ram Size: 64 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: MAPBGA-121
• Mounting Style: SMD/SMT
• A/d Bit Size: 16 bit
• Interface Type: Serial
• Length: 8 mm
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Timers: 2
• On-chip Dac: Yes
• Program Memory Type: Flash
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 1.71 V

Peripheral operating requirements and behaviors
1. Typical values assume V
2. DC potential difference.
3. This resistance is external to MCU. The analog source resistance must be kept as low as possible to achieve the best
4. To use the maximum ADC conversion clock frequency, the ADHSC bit must be set and the ADLPC bit must be clear.
5. For guidelines and examples of conversion rate calculation, download the ADC calculator tool: http://cache.freescale.com/
34
Symbol
V
C
R
V
f
f
reference only and are not tested in production.
results. The results in this data sheet were derived from a system which has < 8 Ω analog source resistance. The R
time constant should be kept to < 1ns.
files/soft_dev_tools/software/app_software/converters/ADC_CALCULATOR_CNV.zip?fpsp=1
C
C
ADCK
ADCK
R
REFL
ADIN
ADIN
ADIN
rate
rate
AS
ADC reference
voltage low
Input voltage
Input capacitance
Input resistance
Analog source
resistance
ADC conversion
clock frequency
ADC conversion
clock frequency
ADC conversion
rate
ADC conversion
rate
Description
Table 24. 16-bit ADC operating conditions (continued)
DDA
K21 Sub-Family Data Sheet Data Sheet, Rev. 3, 08/2012.
13-/12-bit modes
f
≤ 13-bit mode
16-bit mode
≤ 13 bit modes
No ADC hardware averaging
Continuous conversions
enabled, subsequent
conversion time
16-bit mode
No ADC hardware averaging
Continuous conversions
enabled, subsequent
conversion time
Conditions
ADCK
= 3.0 V, Temp = 25 °C, f
• 16-bit mode
• 8-/10-/12-bit modes
< 4 MHz
ADCK
= 1.0 MHz unless otherwise stated. Typical values are for
20.000
37.037
V
V
Min.
1.0
2.0
REFL
—
—
—
—
SSA
Typ.
V
—
—
—
—
—
—
SSA
8
4
2
1
818.330
461.467
V
V
Max.
18.0
12.0
REFH
10
SSA
5
5
5
Freescale Semiconductor, Inc.
Ksps
Ksps
MHz
MHz
Unit
pF
kΩ
kΩ
V
V
Notes
AS
3
4
4
5
5
/C
AS