av9154a Holt Integrated Circuits, Inc., av9154a Datasheet - Page 4

• Manufacturer Part Number: av9154a
• Description: Low-cost 16-pin Frequency Generator
• Manufacturer: Holt Integrated Circuits, Inc.

Note:
Internal Pull-up Resistors.
* -04 and -10 have no pull-ups or frequency select pins
** -10 has no pull-up or Pin 9 PDFCLK
Pin Descriptions
Frequencies based upon 14.318 MHz input)
AV9154A
13
12
16
10
11
14
15
-4
4
5
8
1
3
2
6
7
9
-
-
-
-
-
-
-
-10
13
12
16
15
10
11
14
4
5
8
3
2
7
6
1
9
-
-
-
-
-
-
-
-26
13
12
16
10
11
14
15
4
5
8
1
9
3
2
6
7
-
-
-
-
-
-
PIN NUMBER
-27
13
12
16
15
10
11
14
4
5
8
9
3
2
1
6
7
-
-
-
-
-
-
-
-42
13
12
16
15
10
11
14
4
5
8
1
9
3
2
6
7
-
-
-
-
-
-
-
-43
13
12
16
10
15
11
14
4
5
8
1
9
3
2
6
7
-
-
-
-
-
-
-
SLOWCLK#
14.318 MHz
2XCPUCLK
PIN NAME
STOPCLK#
PDFCLK#
1.84 MHz
CPUCLK
24 MHz
16 MHz
12 MHz
AGND
8 MHz
VDD
VDD
GND
GDD
PD#
FS0
FS1
FS2
OE
X1
X2
4
TYPE
O
O
O
O
O
O
O
O
O
P
P
P
P
P
I
I
I
I
I
I
I
I
I
Digital power (3.3 or 5V).
Digital power (3.3 or 5V).
Digital ground.
Digital ground.
Analog ground.
Frequency select 0 for CPU clock
(has internal pull-up).*
Frequency select 1 for CPU clock
(has internal pull-up).*
Frequency select 2 for CPU clock
(has internal pull-up).*
Tristates outputs when low (has internal pull-up).*
Slows 2XCPU clock to 8 MHz (active low)
(has internal pull-up).
Stops 2XCPU clock glitch-free (active low)
(has internal pull-up).
Crystal In.
Crystal Out.
14.318 MHz reference clock output.
1.84 MHz (comm) clock output.
24 MHz (floppy disk) clock output.
16 MHz clock output.
12 MHz keyboard clock output.
CPU clock output.
2X CPU clock output.
Power-Down All (active low) (has internal pull-up).
Power-Down Fixed Clock
(1.84, 8, 16, 24) (active low).**
8 MHz keyboard clock output.
DESCRIPTION