FT121T-R FTDI, FT121T-R Datasheet - Page 35

• 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

Table 8-5 digital I/O Pin Characteristics (VCCIO=+1.8V)
Table 8-6 USB I/O Pin (DP, DM) Characteristics
8.3
Parameter
Parameter
Symbol
t1
t2
t3
t4
t5
t6
UDrvZ
UCom
UVDif
UVoh
UVse
UVol
Voh
Vol
Vih
Vil
AC Characteristics
I/O Pins Static Output
I/O Pins Static Output
Differential Common
Output Voltage High
Output Voltage Low
Input Voltage High
Input Voltage Low
Parameter
SCLK period
SCLK High period
SCLK Low period
SCLK driving edge to MOSI valid (3-wire mode)
SCLK driving edge to MISO valid (4-wire mode)
MOSI data setup time to sample SCLK edge
MOSI data hold time from sample SCLK edge
Differential Input
Single Ended Rx
Driver Output
Description
Description
Impedance
Copyright © 2012 Future Technology Devices International Limited
Sensitivity
Threshold
(High)
(Low)
Mode
FT121 ENHANCED USB DEVICE CONTROLLER WITH SPI SLAVE IC
Minimum
Minimum
1.62
1.17
2.8
0.8
0.8
0.2
29
-
-
Typical
Typical
-
Maximum
Maximum
0.63
0.4
3.6
0.3
2.0
2.5
44
VCCIO=3.3V
Min
50
25
25
5
5
5
Document No.: FT_000648
Clearance No.: FTDI#
Max
Units
Units
15
Datasheet Version 1.0
Ω
V
V
V
V
V
V
V
V
V
VCCIO=1.8V
Min
60
30
30
8
6
5
R
Including external
R
27 Ω ±1% series
I source = 4mA
L
L
I sink = 4mA
= 15kΩ to GND
= 1.5kΩ to 3.6
Conditions
Conditions
resistor
Max
22
V
312
Unit
ns
ns
ns
ns
ns
ns
35