FT232HL-REEL FTDI, Future Technology Devices International Ltd, FT232HL-REEL Datasheet - Page 53

• Manufacturer Part Number: FT232HL-REEL
• Description: IC HS USB TO UART/FIFO 48QFN
• Manufacturer: FTDI, Future Technology Devices International Ltd

Specifications of FT232HL-REEL

• Number Of Channels: 1, UART
• Fifo's: *
• Protocol: RS-232, RS-422, RS-485
• Voltage - Supply: 1.62 V ~ 1.98 V, 2.97 V ~ 3.63 V
• With Parallel Port: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• Mounting Type: *
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• With Auto Flow Control: -
• With Irda Encoder/decoder: -
• With Cmos: -
• Other names: 768-1101-2

6.3 Oscillator Configuration
Figure 6.4 Recommended FT232H Oscillator Configuration
Figure 6.4 illustrates how to connect the FT232H with a 12MHz ± 0.003% crystal. In this case loading
capacitors should to be added between OSCI, OSCO and GND as shown. A value of 27pF is shown as the
capacitor in the example – this will be good for many crystals but it is recommended to select the loading
capacitor value based on the manufacturer‟s recommendations wherever possible. It is recommended to
use a fundamental mode, parallel cut type crystal.
It is also possible to use a 12 MHz Oscillator with the FT232H. In this case the output of the oscillator
would drive OSCI, and OSCO should be left unconnected. The oscillator must have a CMOS output drive
capability.
Table 6.1 OSCI Input characteristics
Parameter
OSCI Vin
FIn
Ji
Cycle to cycle jitter
Input Frequency
Input Voltage
Copyright © 2011 Future Technology Devices International Limited
Description
FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC
Minimum
2.97
Typical
12MHz
<150
3.3V
Maximum
3.63
Document No.: FT_000288
Units
MHz
Clearance No.: FTDI #199
pS
V
Datasheet Version 1.2
Conditions
± 30ppm
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