FT221XQ-T FTDI, FT221XQ-T Datasheet - Page 24
FT221XQ-T
Manufacturer Part Number
FT221XQ-T
Description
USB Interface IC USB to 8 bit SPI / FT1248 IC QFN-20
Manufacturer
FTDI
Datasheet
1.FT221XS-R.pdf
(47 pages)
Specifications of FT221XQ-T
Rohs
yes
Tradename
X-Chip
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Table 6.6 I/O Pin Characteristics VCCIO = +1.8V (except USB PHY pins)
* The I/O drive strength and slow slew-rate are configurable in the MTP memory.
Parameter
Voh
Vt+
Rpu
Rpd
Vih
Vol
Vt-
Ioz
Iin
Vil
Vt
Schmitt trigger negative
Tri-state output leakage
Input pull-up resistance
going threshold voltage
Schmitt trigger positive
going threshold voltage
Input Leakage Current
Input High Switching
Output Voltage High
Switching Threshold
Input low Switching
Output Voltage Low
Input pull-down
Description
Copyright © 2013 Future Technology Devices International Limited
resistance
Threshold
Threshold
current
Minimum
1.62
1.62
1.62
1.62
1.6
-10
-10
40
40
Typical
VCCIO
VCCIO
VCCIO
VCCIO
0.557
0.893
0.77
+/-1
+/-1
75
75
0
0
0
0
Document No.: FT_000630 Clearance No.: FTDI# 263
Maximum
VCCIO
VCCIO
VCCIO
VCCIO
0.77
0.4
0.4
0.4
0.4
190
190
10
10
Units
KΩ
KΩ
μA
μA
V
V
V
V
V
V
V
V
V
V
V
V
V
I/O Drive strength*
I/O Drive strength*
I/O Drive strength*
I/O Drive strength*
I/O Drive strength*
I/O Drive strength*
I/O Drive strength*
I/O Drive strength*
Version 1.2
Vin = 5.5V or 0
Ioh = +/-2mA
Iol = +/-2mA
Conditions
Vin =VCCIO
= 12mA
= 16mA
= 12mA
= 16mA
Vin = 0
Vin = 0
= 4mA
= 8mA
= 4mA
= 8mA
LVTTL
LVTTL
LVTTL
24
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