FT260Q-R datasheet(48/61 Pages) FTDI

48 / 61 page

FT260 HID-CLASS USB TO UART/I2C BRIDGE IC

Version 1.1

Document No.: FT_001272 Clearance No.: FTDI#484

The protocol of two-byte data address EEPROM

Write:

7 bit slave

address

1st 8 bit

data addr

2nd 8 bit

data addr

8 bit data

Read:

7 bit slave

address

1st 8 bit

data addr

2nd 8 bit

data addr

7 bit slave

address

8 bit data

Figure 9.2 Protocol Format for EEPROM with Two Bytes Data Address

Table9.2 shows the list of the external EEPROMs that are tested with the FT260.

Manufacturer

Part Number

Type

Atmel

AT24CS04-SSHM-TCT-ND 512 x 8

One-byte data address

Atmel

AT24C08D-PUM-ND 1K x 8

One-byte data address

Atmel

AT24CS16-SSHM-TCT-ND 2K x 8

One-byte data address

Atmel

AT24CM01 (1M bit)

Two-byte data address

On Semiconductor

CAT24C04WI-G-ND 512 x 8

One-byte data address

On Semiconductor

CAT24C08WI-GT3CT-ND 1k x 8

One-byte data address

On Semiconductor

CAT24C08WI-GT3CT-ND 2k x 8

One-byte data address

On Semiconductor

CAT24C512

Two-byte data address

Microchip

24AA08-I/SN-ND 1k x 8

One-byte data address

Microchip

24AA16-I/SN-ND 2k x 8

One-byte data address

Table 9.2 Tested EEPROM List for FT260

9.2.2 Default Values

The parameters defined in the EEPROM are shown in Table9.3. Default values are defined in the FT260. If

an EEPROM exists in the application, the priority of the EEPROM is higher than default values.

Parameter

Default Value

Notes

Device Type

FT260

Read-Only. Indicate the Chip is FT260.

USB Vendor ID (VID)

0403h

USB Vendor ID. Defined in the USB device descriptor. The

format is 16-bit hex coded and default is set as FTDI VID.

USB Product ID (PID)

6030h

USB Product ID. Defined in the USB device descriptor The

format is 16-bit hex coded and default is set as 6030h for

FT260.

USB Version

0200h

Read-only. Returns the USB 2.0 device descriptor to the host.

Note: FT260 is a Full-speed USB2.0 device.

Power Source

Bus Powered

Define whether the power source is from the USB bus or a local

source.

Max Bus Power Current

100mA

The max power that will be drawn from VBUS when using bus

power. Range from 0~500mA. If the power source is defined as

self-powered, it must be set as 0mA.

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