1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
1 of 9
ATtiny3217 Xplained Pro
12.02.2019
Tiny3217_Xplained_Pro_TopLevel.SchDoc
Project Title
PCB Assembly Number: PCBA Revision:
File:
PCB Number: PCB Revision:
Designed with
Drawn By:
Microchip Norway
Sheet Title
Top Level Schematics
Engineer:
AH
A08-2751 1
Size
A3
A09-2835 3
Page:
Date:
Altium.com
SJ-5076
E1
SJ-5076
E2
SJ-5076
E3
SJ-5076
E4
DGI_SPI
DGI_TWI
CDC_UART
EXT3
EXT1
DGI_GPIO
UPDI
Target_MCU
Tiny3217_Xplained_Pro_Target_MCU.SchDoc
ID_SYS
EDBG_CDC_UART
EDBG_DGI_TWI
EDBG_DGI_SPI
EDBG_ADC0
EDBG_CM_I2C
EDBG_CM_SPI
EDBG_CM_GCLK
EDBG_CM_SYNC
CM_SWD
EDBG_DGI_GPIO
EDBG_UPDI
EDBG
Tiny3217_Xplained_Pro_EDBG.SchDoc
EXT1
EXT3
UPDI
ID_SYS
Connectors
Tiny3217_Xplained_Pro_Connectors.SchDoc
TARGET_VOLTAGE
CURRENT_MEASUREMENT_INPUT
CURRENT_MEASUREMENT_OUTPUT
Power_supply
Tiny3217_Xplained_Pro_dual_input_power_supply.SchDoc
A11-0196
FE AB 26 E0
FF FF FF FF
9F 0C 4D 00
F3 57 E8 96
F4 64 98 02
35 07 92 86
62 87 5F 0E
FW1
A13-0086
FIXTURE1
I2C
SPI
CLK_IN
CLK_SYNC
CURRENT_MEASUREMENT_OUT
CURRENT_MEASUREMENT_IN
TARGET_VOLTAGE_MEASUREMENT
CM_SWD
Current_measurement
Tiny3217_Xplained_Pro_current_measurement.SchDoc
A08-2751
PCB1
A12-1238
PCBADOC1
A12-1239
TESTDOC1
$ >_
A11-0374
TEST1
Product number/revision
Serial number
Label PCBA
LABEL1
PIE101
COE1
PIE201
COE2
PIE301
COE3
PIE401
COE4
COFIXTURE1
COFW1
COLABEL1
COPCB1
COPCBADOC1
COTEST1
COTESTDOC1
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
2 of 9
ATtiny3217 Xplained Pro
12.02.2019
Tiny3217_Xplained_Pro_Target_MCU.SchDoc
Project Title
PCB Assembly Number: PCBA Revision:
File:
PCB Number: PCB Revision:
Designed with
Drawn By:
Microchip Norway
Sheet Title
Target MCU
Engineer:
AH
A08-2751 1
Size
A3
A09-2835 3
Page:
Date:
Altium.com
UPDI
TARGET_RESET
UPDI
UPDI
DGI_GPIO0
DGI_GPIO1
GPIO
DGI_GPIO
MISO
MOSI
SCK
SS
SPI
DGI_SPI
SCL
SDA
I2C
DGI_TWI
RXD
TXD
UART
CDC_UART
EXT3
EXT1
PIN10_SPI_SS_B/GPIO
PIN11_TWI_SDA
PIN12_TWI_SCL
PIN13_UART_RX
PIN14_UART_TX
PIN15_SPI_SS_A
PIN16_SPI_MOSI
PIN17_SPI_MISO
PIN18_SPI_SCK
PIN3_ADC(+)
PIN4_ADC(-)
PIN5_GPIO
PIN6_GPIO
PIN7_PWM(+)
PIN8_PWM(-)
PIN9_IRQ/GPIO
EXT
PIN10_SPI_SS_B/GPIO
PIN11_TWI_SDA
PIN12_TWI_SCL
PIN13_UART_RX
PIN14_UART_TX
PIN15_SPI_SS_A
PIN16_SPI_MOSI
PIN17_SPI_MISO
PIN18_SPI_SCK
PIN3_ADC(+)
PIN4_ADC(-)
PIN5_GPIO
PIN6_GPIO
PIN7_PWM(+)
PIN8_PWM(-)
PIN9_IRQ/GPIO
EXT
GND
VCC_MCU_P3V3
100n
C304
4.7k
R306
4.7k
R310
VCC_TARGET_P3V3
I2C PULL-UP
4.7uF
C305
1k
R301
N.M.
VCC_TARGET_P3V3
PA6_AIN6
PA7_AIN7
PB7_GPIO1
PB4_GPIO2
PB0_PWM_W0
PB1_PWM_W1
PA5_IRQ_GPIO
PA4_GPIO
PA1_I2C_SDA
PA2_I2C_SCL
PC3_SPI_SS
PC2_SPI_MOSI
PC1_SPI_MISO
PC0_SPI_SCK
PB3_UART_RXD
PB2_UART_TXD
PA1_I2C_SDA
PA2_I2C_SCL
PA3_GPIO_SS
PC2_SPI_MOSI
PC1_SPI_MISO
PC0_SPI_SCK
PB3_UART_RXD
PB2_UART_TXD
PB5_GPIO
PB6_IRQ_GPIO
PA1_I2C_SDA
PA2_I2C_SCL
PA1_I2C_SDA
PA2_I2C_SCL
PA6_AIN6
PA7_AIN7
PB7_GPIO1
PB4_GPIO2
PB0_PWM_W0
PB1_PWM_W1
PA5_IRQ_GPIO
PA4_GPIO
PA1_I2C_SDA
PA2_I2C_SCL
PC3_SPI_SS
PC2_SPI_MOSI
PC1_SPI_MISO
PC0_SPI_SCK
PB3_UART_RXD
PB2_UART_TXD
PA3_GPIO_SS
PB5_GPIO
PB6_IRQ_GPIO
PC2_SPI_MOSI
PC1_SPI_MISO
PC0_SPI_SCK
PC4_GPIO_SS
PA1_I2C_SDA
PA2_I2C_SCL
PA0_UPDI_RST
PC5_GPIO
32 kHz CRYSTAL
32.768kHz
Kyocera Crystal Device Corporation
ST3215SB32768E0HPWBB
XC300
13pF
C301
13pF
C302
GND GND
PB3_TOSC1
PB2_TOSC2
PA0_UPDI_RST
1 3
42
SKRAAKE010
SW300
SML-P11YT
21
D301
GND
VCC_TARGET_P3V3
USER_LED USER_BUTTON
39R
R300
1k
R303
TP300
1 3
42
SKRAAKE010
SW301
GND
100k
R304
VCC_TARGET_P3V3
39R
R311
GND
USER button with current limit and noise filter
TP301
4.7n
C303
N.M.
1
CS300
QTouch Button
10k
R302
QTOUCH BUTTONS
1
CS301
QTouch Button
10k
R305
PC4_GPIO_SS
PA2_I2C_SCL
PA1_I2C_SDA
PA4_GPIO
PA5_IRQ_GPIO
PC4_GPIO_SS
PC2_SPI_MOSI
PC1_SPI_MISO
PC0_SPI_SCK
PA6_AIN6
PA7_AIN7
PB3
PB2
0R
R307
0R
R308
PB3_UART_RXD
PB2_UART_TXD
PC3_SPI_SS
PC5_GPIO
PB5_GPIO
PB6_IRQ_GPIO
PC5_GPIO
0R
R309
GND
0R
R312
N.M.
0R
R313
N.M.
J305
PB5_GPIO
PB4_GPIO2
PB4_GPIO2
PAD
25
PA2
1
PA3(CLKI)
2
GND
3
VCC
4
PA4
5
PA5
6
PA6
7
PA7
8
PB7
9
PB6
10
PB5
11
PB4
12
(TOSC1)PB3
13
(TOSC2)PB2
14
PB1
15
PB0
16
PA1
24
(PDI/RESET)PA0
23
PC5
22
PC4
21
PC3
20
PC2
19
PC1
18
PC0
17
ATtiny3217-MFR
U300
Crystal datasheet:
Ccrystal = 9pF
max ESR = 70kOhm
Accuracy ±20ppm
ATtiny3217 datasheet:
Cpara = ? (Typical)
max ESR = ? kOhm
PCB capacitance: Cpcb = 0.5pF (estimated)
Estimated load:
C = 2x(Ccrystal- Cpara - Cpcb)
C = 2x(9pF - 2.15pF(estimated) - 0.5pF)
C = 12.7pF
Selected in design: C= 13pF
Verification showed: 13pF
Accuracy: less than ±11.8ppm
Startup time: 172ms to reach output
with a 9.5pF probe connected to the crystal.
Safety factor: Above 6
PIC30101
PIC30102
COC301
PIC30201
PIC30202
COC302
PIC30301
PIC30302
COC303
PIC30401
PIC30402
COC304
PIC30501
PIC30502
COC305
PICS30001
COCS300
PICS30101
COCS301
PID30101
PID30102
COD301
PIJ30501
PIJ30502
COJ305
PIR30001
PIR30002
COR300
PIR30101
PIR30102
COR301
PIR30201
PIR30202
COR302
PIR30301
PIR30302
COR303
PIR30401
PIR30402
COR304
PIR30501
PIR30502
COR305
PIR30601
PIR30602
COR306
PIR30701
PIR30702
COR307
PIR30801
PIR30802
COR308
PIR30901
PIR30902
COR309
PIR31001
PIR31002
COR310
PIR31101
PIR31102
COR311
PIR31201
PIR31202
COR312
PIR31301
PIR31302
COR313
PISW30001
PISW30002
PISW30003
PISW30004
COSW300
PISW30101
PISW30102
PISW30103
PISW30104
COSW301
PITP30001
COTP300
PITP30101
COTP301
PIU30001
PIU30002
PIU30003
PIU30004
PIU30005
PIU30006
PIU30007
PIU30008
PIU30009
PIU300010
PIU300011
PIU300012
PIU300013
PIU300014
PIU300015
PIU300016
PIU300017
PIU300018
PIU300019
PIU300020
PIU300021
PIU300022
PIU300023
PIU300024
PIU300025
COU300
PIXC30001
PIXC30002
COXC300
POCDC0UART
POCDC0UART0RXD POCDC0UART0TXD
PODGI0GPIO
PODGI0GPIO0DGI0GPIO0 PODGI0GPIO0DGI0GPIO1
PODGI0SPI
PODGI0SPI0MISO PODGI0SPI0MOSI
PODGI0SPI0SCK
PODGI0SPI0SS
PODGI0TWI
PODGI0TWI0SCL PODGI0TWI0SDA
POEXT1
POEXT10PIN30ADC(0) POEXT10PIN40ADC(0)
POEXT10PIN50GPIO POEXT10PIN60GPIO
POEXT10PIN70PWM(0) POEXT10PIN80PWM(0)
POEXT10PIN90IRQ0GPIO
POEXT10PIN100SPI0SS0B0GPIO
POEXT10PIN110TWI0SDA POEXT10PIN120TWI0SCL POEXT10PIN130UART0RX POEXT10PIN140UART0TX
POEXT10PIN150SPI0SS0A POEXT10PIN160SPI0MOSI POEXT10PIN170SPI0MISO
POEXT10PIN180SPI0SCK
POEXT3
POEXT30PIN30ADC(0) POEXT30PIN40ADC(0)
POEXT30PIN50GPIO POEXT30PIN60GPIO
POEXT30PIN70PWM(0) POEXT30PIN80PWM(0)
POEXT30PIN90IRQ0GPIO
POEXT30PIN100SPI0SS0B0GPIO
POEXT30PIN110TWI0SDA POEXT30PIN120TWI0SCL POEXT30PIN130UART0RX POEXT30PIN140UART0TX
POEXT30PIN150SPI0SS0A POEXT30PIN160SPI0MOSI POEXT30PIN170SPI0MISO
POEXT30PIN180SPI0SCK
POUPDI
POUPDI0TARGET0RESET
POUPDI0UPDI