ICS650R-01 IDT, Integrated Device Technology Inc, ICS650R-01 Datasheet - Page 2

• Manufacturer Part Number: ICS650R-01
• Description: IC CLK SYNTHESIZER 20-SSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock/Frequency Synthesizerr

Specifications of ICS650R-01

• Pll: Yes with Bypass
• Input: Clock, Crystal
• Output: CMOS
• Number Of Circuits: 1
• Ratio - Input:output: 1:8
• Differential - Input:output: No/No
• Frequency - Max: 66.67MHz
• Divider/multiplier: No/No
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Frequency-max: 67MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 650R-01

Pin Assignment
USB Clock (MHz)
Pin Descriptions
IDT™ / ICS™ SYSTEM PERIPHERAL CLOCK SOURCE
Number
ICS650-01
SYSTEM PERIPHERAL CLOCK SOURCE
Pin
10
USEL
1
2
3
4
5
6
7
8
9
M
0
1
X1/ICLK
PCLK4
UCLK
ACLK
USEL
GND
VDD
VDD
20M
X1/ICLK
PCLK4
X2
Name
USEL
UCLK
ACLK
GND
VDD
VDD
20M
Pin
X2
UCLK
20 pin (150 mil) SSOP
12
24
48
10
1
2
3
4
5
6
7
8
9
Output
Output
Output
Output
Power
Power
Power
Type
Input
Pin
XO
XI
20
19
18
17
16
15
14
13
12
11
UCLK select pin. Determines frequency of USB clock per table above.
Crystal connection. Connect to parallel mode 14.31818 MHz crystal.
Leave open for clock.
Crystal connection. Connect to parallel mode 14.31818 MHz crystal or
clock.
Connect to VDD. Must be same value as other VDD. Decouple with pin 6.
Connect to VDD. Must be same value as other VDD.
Connect to ground.
USB clock output per table above.
Fixed 20 MHz output for Ethernet. Only clock that runs when
PSEL1=PSEL0=1.
AC97 audio clock output per table above.
PCLK output number 4 per table above.
PSEL1
PSEL0
PCLK2
PCLK3
VDD
ASEL
GND
14.318M
PCLK1
OE
2
Processor Clock (MHz)
Audio Clock (MHz)
0 = connect directly to ground
1 = connect directly to VDD
M = leave unconnected (floating)
PSEL1
M
M
M
0
0
0
1
1
1
Pin Description
ASEL
M
0
1
PSEL0
M
M
M
0
1
0
1
0
1
33.3334
PCLK1
Stops low all clocks except 20M
TEST
TEST
49.152
24.576
12.288
ACLK
25
40
20
20
20
PCLK2, 3
66.6667
33.3334
66.6667
TEST
TEST
50
80
40
ICS650-01
CLOCK SYNTHESIZER
PCLK4
18.75
TEST
TEST
20
25
25
25
25
REV H 051310