Datasheet
Table 91. External crystal/resonator connections
Oscillator mode Oscillator mode
Low frequency (32.768kHz), low power Diagram 1
Low frequency (32.768kHz), high gain Diagram 2, Diagram 4
High frequency (3-32MHz), low power Diagram 3
High frequency (3-32MHz), high gain Diagram 4
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
MCU
ADCx
MCU
ADCx
MCU
RESET_b
MCU
NMI_b
MCU
RESET_b
Supervisor Chip
OUT
Active high,
open drain
RESET_b
SWD_DIO
SWD_CLK
Analog input
High voltage input
RESET_b
VDD
VDD
VDD
VDD
VDD
VDD
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R
1 2
0.1uF
12
R5
1 2
Cx
12
0.1uF
12
RESONATOR
1 3
2
Cy
12
Cx
12
CRYSTAL
21
J1
HDR_5X2
1 2
3 4
65
7 8
9 10
Cy
12
10k
12
10k
12
R4
12
CRYSTAL
21
0.1uF
12
10k
12
CRYSTAL
21
R1
1 2
R3
1 2
C
12
RESONATOR
1 3
2
R2
1 2
10k
12
10k
12
RF
1 2
RS
12
BAT54SW
1 2
3
RS
12
RS
12
C
12
RF
1 2
RS
1 2
RF
1 2
CRYSTAL
21
Figure 51. Crystal connection – Diagram 1
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
MCU
ADCx
MCU
ADCx
MCU
RESET_b
MCU
NMI_b
MCU
RESET_b
Supervisor Chip
OUT
Active high,
open drain
RESET_b
SWD_DIO
SWD_CLK
Analog input
High voltage input
RESET_b
VDD
VDD
VDD
VDD
VDD
VDD
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R
1 2
0.1uF
12
R5
1 2
Cx
12
0.1uF
12
RESONATOR
1 3
2
Cy
12
Cx
12
CRYSTAL
21
J1
HDR_5X2
1 2
3 4
65
7 8
9 10
Cy
12
10k
12
10k
12
R4
12
CRYSTAL
21
0.1uF
12
10k
12
CRYSTAL
21
R1
1 2
R3
1 2
C
12
RESONATOR
1 3
2
R2
1 2
10k
12
10k
12
RF
1 2
RS
12
BAT54SW
1 2
3
RS
12
RS
12
C
12
RF
1 2
RS
1 2
RF
1 2
CRYSTAL
21
Figure 52. Crystal connection – Diagram 2
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
EXTAL XTAL
OSCILLATOR
MCU
ADCx
MCU
ADCx
MCU
RESET_b
MCU
NMI_b
MCU
RESET_b
Supervisor Chip
OUT
Active high,
open drain
RESET_b
SWD_DIO
SWD_CLK
Analog input
High voltage input
RESET_b
VDD
VDD
VDD
VDD
VDD
VDD
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R
1 2
0.1uF
12
R5
1 2
Cx
12
0.1uF
12
RESONATOR
1 3
2
Cy
12
Cx
12
CRYSTAL
21
J1
HDR_5X2
1 2
3 4
65
7 8
9 10
Cy
12
10k
12
10k
12
R4
12
CRYSTAL
21
0.1uF
12
10k
12
CRYSTAL
21
R1
1 2
R3
1 2
C
12
RESONATOR
1 3
2
R2
1 2
10k
12
10k
12
RF
1 2
RS
12
BAT54SW
1 2
3
RS
12
RS
12
C
12
RF
1 2
RS
1 2
RF
1 2
CRYSTAL
21
Figure 53. Crystal connection – Diagram 3
Design considerations
Kinetis KL82 Microcontroller, Rev. 3, 08/2016
129
NXP Semiconductors