ALFAT-OM-337 GHI Electronics, ALFAT-OM-337 Datasheet - Page 11

• Manufacturer Part Number: ALFAT-OM-337
• Description: Memory IC Development Tools ALFAT USB / SD to UART / SPI OEM BOARD
• Manufacturer: GHI Electronics

Specifications of ALFAT-OM-337

• Rohs: yes
• Product: SD OEM Board
• Tool Is For Evaluation Of: SD, SDHC, MMC Cards, USB drives
• Memory Type: Flash
• Operating Supply Voltage: 3.3 V
• Description/function: OEM board offers a seamless way to access files on SD & MMC cards and on USB memory drives
• Interface Type: I2C, SPI, UART, USB
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Part # Aliases: GHI-ALFAT-OM-337

GHI Electronics
Rev. 1.13
Pin Name
21 USB1_ULPI_CK
22
23 SPI_MOSI
24 WP
25 CD
26 USB1_ULPI_D1
27 USB1_ULPI_D2
28 BOOT1
29 USB1_ULPI_D3
30 USB1_ULPI_D4
31 VCAP_1
32 VDD1
33 USB1_ULPI_D5
34 USB1_ULPI_D6
35 USB1_DM
36 USB1_DP
37 NC
38 NC
39 SD_D0
40 SD_D1
SPI_MISO
UART_BUSY
Description
being processed. Low when command is complete.
Note: The command is considered complete when ALFAT is done
sending the response to the command. This is automatically
completed in UART but SPI and I2C are slaves so ACTIVE pin
will go low after the master reads the response.
It is completely safe to ignore this signal and keep it not
connected.
USB High Speed PHY signal. Not connected if PHY is not used
MISO SPI interface and UART BUSY pin, 5V tolerant
MOSI SPI interface, 5V tolerant
SD Write protection signal input. Low = card not protected.
Note: WP MUST be connected to ground if Write protection
signal is not used in the hardware design.
Memory Card Detect signal input. Low = card detected.
Note: CD MUST be connected to ground if Card Detect signal is
not used in the hardware design.
USB High Speed PHY signal. Do not connect if PHY is not used
USB High Speed PHY signal. Do not connect if PHY is not used
Add a 10K resistor to ground.
USB High Speed PHY signal. Do not connect if PHY is not used
USB High Speed PHY signal. Do not connect if PHY is not used
Connect to a 22uF to ground
Power, 3.3V
USB High Speed PHY signal. Do not connect if PHY is not used
USB High Speed PHY signal. Do not connect if PHY is not used
Data Minus, USB Port 1. This is only used if no HS PHY is
installed.
NC if PHY is used. Add 22ohm resistor in series if used
Data Plus, USB Port 1. This is only used if no HS PHY is
installed.
NC if PHY is used. Add 22ohm resistor in series if used
Should not be connected
Should not be connected
D0, 4-bit SD Bus. Add a 47K resistor between this pin and VDD
D1, 4-bit SD Bus. Add a 47K resistor between this pin and VDD
Page 11 of 51
ALFAT SoC Processor
Package and Pin-Out
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