FT121T-R FTDI, FT121T-R Datasheet - Page 20

• Manufacturer Part Number: FT121T-R
• Description: USB Interface IC USB CONTROLLER W/SPI SLAVE IC
• Manufacturer: FTDI

Specifications of FT121T-R

• Rohs: yes
• Product: USB 2.0
• Interface Type: SPI, USB
• Operating Supply Voltage: 4 V to 5.5 V
• Operating Supply Current: 3.9 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-16
• Minimum Operating Temperature: - 40 C

Command Name
Read Buffer
Write Buffer
Set Endpoint Status
Acknowledge Setup
Clear Buffer
Validate Buffer
Send Resume
Read Current Frame Number
Set 3-wire Mode
Set IO Pad Drive Strength
Copyright © 2012 Future Technology Devices International Limited
FT121 ENHANCED USB DEVICE CONTROLLER WITH SPI SLAVE IC
Target
Endpoint 7 OUT
Endpoint 7 IN
Selected Endpoint
Selected Endpoint
Endpoint 0 OUT
Endpoint 0 IN
Endpoint 1 OUT
Endpoint 1 IN
Endpoint 2 OUT
Endpoint 2 IN
Endpoint 3 OUT
Endpoint 3 IN
Endpoint 4 OUT
Endpoint 4 IN
Endpoint 5 OUT
Endpoint 5 IN
Endpoint 6 OUT
Endpoint 6 IN
Endpoint 7 OUT
Endpoint 7 IN
Selected Endpoint
Selected Endpoint
Selected Endpoint
Device
Device
Device
Device
General Commands
Code (hex)
5Ah
5Bh
5Ch
5Dh
8Eh
8Fh
E0h
F0h
50h
51h
52h
53h
54h
55h
56h
57h
58h
59h
5Eh
5Fh
F1h
F2h
FAh
F6h
F5h
E8h
E9h
Document No.: FT_000648
Clearance No.: FTDI#
Data phase
Read 1 byte
Read 1 byte
Read multiple bytes
Write multiple bytes
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
None
None
None
None
Read 1 or 2 bytes
None
Write 1 byte
Datasheet Version 1.0
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