AV9154A-39
Preliminary Product Preview
Pin Descriptions
PIN
NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PIN NAME
8.33 MHz
X2
X1
VDD
GND
100 MHz
10 MHz
AGND
OE
FS0
NC
GND
VDD
CPUCLK
FS1
PD#
TYPE
OUT
OUT
IN
PWR
PWR
OUT
OUT
PWR
IN
IN
-
PWR
PWR
OUT
IN
IN
DESCRIPTION
8.33 MHz output clock.*
Crystal Out.
Crystal In, nominally 10.0 MHz.
Digital power (+5V).
Digital ground.
100 MHz clock output.*
10 MHz keyboard clock output.*
Analog ground.
Tristates outputs when low.
Frequency select 0 for CPU clock.
No connect (Do not connect to this pin.).
Digital ground.
Digital power (+5V).
CPU clock output.
Frequency select 1 for CPU clock.
Power-down, shuts off internal clocks and forces outputs to
low logic level when input pulled logic low.
Note: The following input pins are pulled-up to VDD internal: 9, 10, 15 and 16.
Functionality
FS1
0
0
1
1
FS0
0
1
0
1
CLK(MHz)
40.0
30.0
37.0
25.0
These frequencies assume an input frequency of 10.0 Mhz.
2
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
