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ICS2694M Datasheet(PDF) 2 Page - Integrated Circuit Systems |
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ICS2694M Datasheet(HTML) 2 Page - Integrated Circuit Systems |
2 / 8 page Pin Description PIN NUMBER NAME DESCRIPTION 1 OUT2 4mA Output. 2 OUT1 4mA Output. 3 OUT0 4mA Output 4 OUT9 4mA Output. 5 CPUCLK 4mA Output driven by Voltage Controlled Oscillator 1 (VC01). VC01 is controlled by a 16 word ROM. 6 VSS Ground for digital portion of chip. 7 DVDD Plus supply for digital portion of chip. 8 STROBE 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. 9 CPUSEL0 LSB CPUCLK address bit. 10 CPUSEL1 CPUCLK address bit. 11 CPUSEL2 CPUCLK address bit. 12 CPUSEL3 MSB CPUCLK address bit. 13 CLKIN 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. 14 OUTPUTE Pulling this line low tristates all outputs. 15 AVSS Ground for analog portion of chip. 16 XTAL1 Input of internal crystal oscillator stage. 17 XTAL2 Output of internal crystal oscillator stage. This pin should have nothing connected to it but one of the quartz crystal terminals. 18 AVDD Positive supply for analog portion of chip. 19 OUT8 4mA Output. 20 OUT7 4mA Output. (Usually assigned as CPUCLK/2 for co-processor use.) 21 OUT6 4mA Output. 22 OUT5 4mA Output. 23 OUT4 4mA Output. 24 OUT3 4mA Output. ICS2694 2 |
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