ICS90C65 Datasheet, PDF (5/10 Pages) Integrated Circuit Systems – Dual Voltage Video/Memory Clock Generator

ICS90C65
Pin Descriptions
The following table provides the pin descriptions for the 20-pin ICS90C65 packages.
PIN
NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PIN
SYMBOL
CLKI
MSEL2
EXTCLK
VSEL1
VSEL0
SELEN
VSEL2
VSEL3
MSEL0
DVSS
MSEL1
MCLK
PWRDN
MCLKE
AVDD
AVSS
NC
VCLKE
VCLK
DVDD
TYPE
IN
IN
IN
IN
IN
IN
IN
IN
IN
-
IN
OUT
IN
IN
-
-
-
IN
OUT
-
DESCRIPTION
Reference input clock from system.
Select input for MCLK selection.
External clock input for an additional frequency.
Control input for VCLK selection.
Control input for VCLK selection.
Strobe for latching VSEL(0,1) (low enable).
Control input for VCLK selection.
Control input for VCLK selection.
Select input for MCLK selection.
Ground for Digital Circuit.
Select input for MCLK selection.
Memory Clock Output.
Power Down Control.
Enable input for MCLK output (high enables output).
Power supply for analog circuit.
Ground for analog circuit.
No connection.
Enable input for VCLK output (high enables output).
Video Clock Output.
Power supply for Digital Circuit.
Note:
CLKI, EXTCLK,VSEL0, VSEL1,VSEL2, VSEL3, SELEN, MSEL0, MSEL1, MSEL2, VCLKE, and MCLKE - input pins have
internal pull-up resistors. PWRDN has an internal pull-down resistor.
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