AV2694M 查看數據表（PDF） - Integrated Circuit Systems
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AV2694M Datasheet PDF : 8 Pages
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ICS2694
Pin Description
PIN NUMBER
1
2
3
4
5
NAME
OUT2
OUT1
OUT0
OUT9
CPUCLK
6
VSS
7
DVDD
8
STROBE
9
CPUSEL0
10
CPUSEL1
11
CPUSEL2
12
CPUSEL3
13
CLKIN
14
OUTPUTE
15
AVSS
16
XTAL1
17
XTAL2
18
AVDD
19
OUT8
20
OUT7
21
OUT6
22
OUT5
23
OUT4
24
OUT3
DESCRIPTION
4mA Output.
4mA Output.
4mA Output
4mA Output.
4mA Output driven by Voltage Controlled Oscillator 1 (VC01). VC01 is controlled
by a 16 word ROM.
Ground for digital portion of chip.
Plus supply for digital portion of chip.
Input control for transparent latches associated with CPU (0-3) which select one of
16 values for CPUCLK. Holding STROBE high causes the latches to be transparent.
LSB CPUCLK address bit.
CPUCLK address bit.
CPUCLK address bit.
MSB CPUCLK address bit.
An alternative input for the reference clock. The crystal oscillator output and CLKIN
are gated together to generate the reference clock for the VCO’s. If CLKIN is used,
XTAL1 should be held high and XTAL2 left open. If the internal oscillator is used,
hold CLKIN high.
Pulling this line low tristates all outputs.
Ground for analog portion of chip.
Input of internal crystal oscillator stage.
Output of internal crystal oscillator stage. This pin should have nothing connected
to it but one of the quartz crystal terminals.
Positive supply for analog portion of chip.
4mA Output.
4mA Output. (Usually assigned as CPUCLK/2 for co-processor use.)
4mA Output.
4mA Output.
4mA Output.
4mA Output.
2
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