trezor-firmware/docs/hardware.md

TREZOR Core Hardware

TREZOR v2 Open Source Hardware Reference Documentation

Photo

Bill of Materials / BOM

BOM

Schematic

Developer Kit

• 1 x STM32F429I-DISC1
• 1 x USB Cable Type A Plug/Male to Type Mini-B Plug/Male
• 1 x USB Cable Type A Plug/Male to Type Micro-B Plug/Male
• 1 x ER-TFTM028-4 Display + Capacitive Touch Panel Module (Note: specify 40-Pin Header, 8080 8-bit Parallel, VDD=3.3V, Capacitive Touch Panel)
• 1 x microSD Board
• 28 x Female to female jumper wires with 0.1" header contacts

Display

• Resolution: 240px x 240px -OR- 240px x 320px
• Driver IC: ST7789V or ILI9341V (on-chip display data RAM of 240x320x18 bits)
• 18-bit (262,144) RGB color graphic type TFT-LCD
• Bus/Interface: 8080-I 8-bit parallel with 16-bit/pixel (RGB 5-6-5)

Pinout

Description	MCU Pin	Notes
LCD_RST	PC14	display module pin 21
LCD_FMARK	PD12	tearing effect input; display module pin 22
LCD_PWM	PA7	backlight control (brightness); display module pin 29
LCD_CS	PD7	display module pin 23
LCD_RS	PD11	register select aka command/data; display module pin 24
LCD_RD	PD4	display module pin 26
LCD_WR	PD5	display module pin 25
LCD_D0	PD14	display module pin 3
LCD_D1	PD15	display module pin 4
LCD_D2	PD0	display module pin 5
LCD_D3	PD1	display module pin 6
LCD_D4	PE7	display module pin 7
LCD_D5	PE8	display module pin 8
LCD_D6	PE9	display module pin 9
LCD_D7	PE10	display module pin 10

Capacitive Touch Panel / Sensor

• Bus/Interface: I2C
• Driver IC: FT6236 or FT6206
• single touch

Pinout

Description	MCU Pin	Notes
I2C1_SCL	PB6	display module pin 30
I2C1_SDA	PB7	display module pin 31
EINT	PC4	display module pin 39
REST	PC5

microSD Socket

• Bus/Interface: 4-bit

Pinout

Description	MCU Pin
SDIO_D0	PC8
SDIO_D1	PC9
SDIO_D2	PC10
SDIO_D3	PC11
SDIO_CK	PC12
SDIO_CMD	PD2
SD_CARDDETECT	PC13

USB Socket

• USB HS (high-speed) peripheral in FS (full-speed) mode

Pinout

Description	MCU Pin
OTG_HS_VBUS	PB13
OTG_HS_ID	PB12
OTG_HS_DM	PB14
OTG_HS_DP	PB15

Dev Board

• STM32F429ZIT6
• HSE / High-Speed External Crystal: 8 MHz
• Integrated STMicroelectronics ST-LINK/V2.1 debugger

Minimum MCU requirements:

• STM32F4 family STM32F427VIT6
• 168 MHz, 8 MHz HSE
• 2048 KB Flash memory
• 192 KB SRAM
• 64 KB CCMRAM
• FMC controller
• TRNG

Clock Tree