FT245RL-2000 FTDI [Future Technology Devices International Ltd.], FT245RL-2000 Datasheet - Page 21

• Manufacturer Part Number: FT245RL-2000
• Description: USB FIFO IC - Single chip USB to parallel FIFO bidirectional data transfer interface
• Manufacturer: FTDI [Future Technology Devices International Ltd.]

Parameter
UDrvZ
Table 5.12 USB I/O Pin (USBDP, USBDM) Characteristics
Note 1: Driver output impedance includes the internal USB series termination resistors on USBDP and
USBDM pins
6.1 EEPROM Reliability Characteristics
The internal 1024 Bit EEPROM has the following reliability characteristics:
Parameter
Data Retention
Read / Write Cycle
Table 5.13 EEPROM Characteristics
6.2 Internal Clock Characteristics
The internal Clock Oscillator has the following characteristics:
Parameter
Frequency of Operation
(see Note 1)
Clock Period
Duty Cycle
Table 5.14 Internal Clock Characteristics
Note 1: Equivalent to +/-1667ppm
Parameter
Voh
Vol
Vin
Table 5.15 OSCI, OSCO Pin Characteristics – see Note 1
Note1: When supplied, the FT245R is configured to use its internal clock oscillator. These characteristics
only apply when an external oscillator or crystal is used.
Description
Driver Output
Impedance
Description
Output Voltage High
Output Voltage Low
Input Switching Threshold
Copyright © 2010 Future Technology Devices International Limited
Value
10
10,000
Value
Minimum
11.98
83.19
45
Unit
Years
Cycles
Minimum
26
Minimum
2.1
0.3
1.0
Typical
12.00
83.33
50
Typical
29
FT245R USB FIFO IC Datasheet Version 2.10
Typical
2.8
0.4
1.2
Maximum
44
Maximum
12.02
83.47
55
Maximum
3.2
0.6
1.5
Document No.: FT_000052
Units
Ohms
Clearance No.: FTDI# 39
Units
V
V
V
Unit
MHz
ns
%
Conditions
See Note 1
Conditions
I source =
3mA
I sink = 8mA
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