VNC2-48Q1B-REEL FTDI, VNC2-48Q1B-REEL Datasheet - Page 37

• Manufacturer Part Number: VNC2-48Q1B-REEL
• Description: USB Interface IC Vinculum-II Dual USB Host/Dev IC QFN-48
• Manufacturer: FTDI
• Type: USB Host/Device Controllerr

Specifications of VNC2-48Q1B-REEL

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Supply Current: 25 mA
• Operating Supply Voltage: 1.8 V, 3.3V
• Package / Case: QFN-48
• Description/function: USB Vinculum-II Dual Host/Dev IC QFN-48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: VINCULUM2

5.7
This example shows how to set a UART interface on the VNC2 64 pin package. The UART is made up of
two output signals (uart_txd and uart_rts#) and two input signals (uart_rxd and uart_cts#). For PCB
design it is best to have the four pins of the UART interface adjacent to each other. This can be achieved
easily since the four signals are members of each different groups. Figure 5-1 clearly shows that the
four groups are adjacent to each other. So the four adjacent pins can be used for the UART interface as
long as they are selected one from each of the four groups. Tables 9, 10, 11 & 12 can now be used to
select where the UART interface can be placed. Figure 5-6 shows the four UART signal selected on pins
11, 12, 13 & 14 however they could have been selected on any of the other four pins highlighted in blue
dashed lines.
I/O Mux Interface Configuration Example
Copyright © 2010 Future Technology Devices International Limited
10
64
63
62
61
9
60
59
58
57
33
34
36
37
8
4
5
7
VINCULUM-II EMBEDDED DUAL USB HOST CONTROLLER IC Datasheet
IOBUS43
IOBUS42
IOBUS41
IOBUS40
IOBUS39
IOBUS38
IOBUS37
IOBUS36
VREG OUT
TEST
PROG#
RESET#
XTIN
USB1DP
USB1DM
USB2DP
USB2DM
XTOUT
G
N
D
V
C
C
I
O
1
54 38 21
Figure 5-6 UART Example 64 pin
G
N
D
P
L
L
6
V
C
C
I
O
64 Pin
VNC2
G
N
D
30
I
V
C
C
O
G
N
D
35
V
C
C
2
G
N
D
53
V
C
C
P
L
L
3
IOBUS10
IOBUS11
IOBUS12
IOBUS13
IOBUS14
IOBUS15
IOBUS16
IOBUS17
IOBUS18
IOBUS19
IOBUS20
IOBUS21
IOBUS22
IOBUS23
IOBUS24
IOBUS25
IOBUS26
IOBUS27
IOBUS28
IOBUS29
IOBUS30
IOBUS31
IOBUS32
IOBUS33
IOBUS34
IOBUS35
IOBUS0
IOBUS1
IOBUS2
IOBUS3
IOBUS4
IOBUS5
IOBUS6
IOBUS7
IOBUS8
IOBUS9
11
12
13
14
15
16
17
18
19
20
22
23
24
25
26
27
28
29
31
32
39
40
41
42
43
44
45
46
47
48
49
50
51
52
55
56
uart_cts# – group3
uart_rts# – group2
uart_txd – group0
uart_rxd – group1
Document No.: FT_000138
Clearance No.: FTDI#
Version -
143
1.2
37