ALFAT-OM-337 GHI Electronics, ALFAT-OM-337 Datasheet - Page 10

• 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

3. Package and Pin-Out
ALFAT SoC package is standard 10x10mm LQFP64. The following Table illustrates a brief
description of ALFAT SoC processor pins.
GHI Electronics
Rev. 1.13
Pin Name
10 USB1_ULPI_DIR USB High Speed PHY signal. Do not connect if PHY is not used
11 USB1_ULPI_NXT USB High Speed PHY signal. Do not connect if PHY is not used
12 VSSA
13 VDDA
14 WAKEUP
15 NC
16 NC
17 USB1_ULPI_D0
18 VSS1
19 VDD1
20 ACTIVE
1
2
3
4
5
6
7
8
9
VBAT
NC
OSC32_IN
OSC32_OUT
OSC_IN
OSC_OUT
RESET
USB1_ULPI_STP USB High Speed PHY signal. Do not connect if PHY is not used
NC
Description
Power source for the internal RTC. Connect to 3V battery or
VCC. Always use 2 diodes to connect a battery and VCC in case
the battery runs out of power. VBAT works 1.65V to 3.6V.
If RTC is not needed, connect to VCC
Should not be connected
Pin 1 for the 32.768KHz crystal, for the real time clock. Optional
Pin 2 for the 32.768KHz crystal, for the real time clock. Optional
Pin 1 for parallel-cut 12MHz system crystal. 10pF to 20pF is
recommended
Pin 2 for 12MHz system crystal
Reset signal, the pin pulled up internally. Active Low.
THIS PIN IS NOT 5VOLT TOLERANT
Should not be connected
Ground
3.3V Power source
Wake up ALFAT, check power mode command Z for more details
Should not be connected
Should not be connected
USB High Speed PHY signal. Do not connect if PHY is not used
Ground
Power, 3.3V
Active signal indicates the current status of command
processing. Useful for a system-activity-LED, max 8mA.
On UART: Active pin is high when a command is received and
Page 10 of 51
ALFAT SoC Processor
Package and Pin-Out
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