ICS9134-06 Datasheet, PDF (2/6 Pages) Integrated Circuit Systems – 32 kHz Motherboard Frequency Generator

ICS9134-06
ICS9134-07
Pin Configuration
CPUS2
X2
X1
VDD32
VDD
GND
24M
32K
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
16-Pin SOIC
CPUS1
CPUS0
CPUCLK
VDD
GND
14.3M
PD24+KDB
KBOUT
Decoding Table for CPU Clock
CPUS2
0
0
0
0
1
1
1
1
CPUS1
0
0
1
1
0
0
1
1
CPUS0
0
1
0
1
0
1
0
1
CPUCLK (MHz)
Off+14M off
80.00
25.00
66.66
20.00
50.00
33.33
4.00
ICS9134 Option
KEYBOARD CLOCK
KBOUT
-06
16 MHz
-07
12 MHz
Pin Descriptions
PIN
NUMBER
1
2
PIN
NAME
CPUS2
X2
3
X1
4
VDD32
5
VDD
6
GND
7
24M
8
32K
9
KBOUT
10
PD24+KBD
11
14.3M
12
GND
13
VDD
14
CPUCLK
15
CPUS0
16
CPUS1
TYPE
I
O
I
P
P
P
O
O
O
I
O
P
P
O
I
I
DESCRIPTION
Select 2 for 2XCPU and CPU frequencies. See Table above.
Crystal connection. Connect to 32.768 kHz crystal. Includes internal
XTAL load capacitance.
Crystal connection. Connect to 32.768 kHz crystal. This pin includes
internal XTAL load capacitance and feedback bias for a 32.768 kHz crystal.
Separate power supply connection for 32.768 kHz clock. Will operate down to
2.0V, independent of the rest of the circuit VDD.
Connect to +3.3V or +5V.
Connect to ground.
24 MHz floppy (or super I/O) clock output.
32.768 kHz square wave clock output.
Keyboard clock output, fixed 16 MHz (-06) or 12 MHz (-07).
Power-down 24M+keyboard. Shuts off both clock outputs, pins 7 & 9 when
low.
14.318 MHz system clock output.
Connect to ground.
Connect to +3.3V or +5V.
CPUCLK output. See Table above.
Select 0 for 2XCPU and CPU frequencies. See Table above.
Select 1 for 2XCPU and CPU frequencies. See Table above.
2