
KL5KUSB105
Kawasaki LSI
2570 North First Street
Suite 301
San Jose, CA 95131
Tel: (408) 570-0555
Fax: (408) 570-0567
www.klsi.com
3
Ver. 1.8
USB to 4 Serial Ports
Pin Description
Pin #
LQFP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
I/O
Pin Name
Description
VDD
SDA*
PU#1*
VDD
Serial EEPROM serial data. Connect to EEPROM/SDA
Pull up to USB +Pin for High Speed
Data Carrier Detect
Data Set Ready
Clear To Send
Data Terminal Ready
Request To Send
Receive Data
Transmit Data
Ring Indicate
Active low Powerdown mode signal
GND
Transmit Data
Receive Data
Request To Send
Data Terminal Ready
Clear To Send
Data Set Ready
Data Carrier Detect
Ring Indicate
Debug UART Txd
USB GND
USB + Pin
USB - Pin
USB VDD
Ring Indicate
Serial EEPROM clock. Connect to EEPROM/SCL
GND
PLL VCO In
PLL VCO Out
VDD
PLL Enable
Debug UART Rxd
no connection
no connection
Transmit Data
Receive Data
Request To Send
Data Terminal Ready
Clear To Send
Data Set Ready
Data Carrier Detect
Ring Indicate
Transmit Data
IN/OUT
IN
IN
IN
IN
OUT
OUT
IN
OUT
IN
OUT
UART4_DCD*
UART4_DSR*
UART4_CTS*
UART4_DTR*
UART4_RTS*
UART4_Rxd*
UART4_Txd*
UART3_RI*
nPWR_DWN*
GND
UART1_Txd*
UART1_Rxd*
UART1_RTS*
UART1_DTR*
UART1_CTS*
UART1_DSR*
UART1_DCD*
UART1_RI*
nTXD
GND
VP
VM
VDD
UART4_RI*
SCL*
GND
VCO_IN
CP_OUT
VDD
PLLEN*
nRXD*
N/C
N/C
UART2_Txd*
UART2_Rxd*
UART2_RTS*
UART2_DTR*
UART2_CTS*
UART2_DSR*
UART2_DCD*
UART2_RI*
UART3_Txd*
OUT
IN
OUT
OUT
IN
IN
IN
IN
OUT
IN/OUT
IN/OUT
IN
OUT
IN
OUT
IN
IN
OUT
IN
OUT
OUT
IN
IN
IN
IN
OUT