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Z8631904SSC Datasheet(PDF) 1 Page - Zilog, Inc. |
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Z8631904SSC Datasheet(HTML) 1 Page - Zilog, Inc. |
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1 / 23 page  DS97KEY1605 P R E L I M I N A R Y 1 1 PRELIMINARY PRODUCT SPECIFICATION Z86319 1 PS/2 MOUSE CONTROLLER FEATURES s 0 °C to + 40°C Operating Temperature Range s Low-Power Consumption: 25 mW (Typical) s P24-P27 Can Be Configured with a Voltage Divider During Input Mode s On-Chip Oscillator (Tolerance = ±10%) s Fast Instruction Pointer: 1.5 µs @ 4 MHz s ESD Protection Circuitry s Hardwired Watch-Dog Timer (WDT) s Excellent System Level EMI/EFT/ESD GENERAL DESCRIPTION The Z86319 is a member of the Z8 family of CMOS micro- controllers architecture to be used in mouse applications. These devices offer on-board pull-up and pull-down resis- tors, a trip-point buffer to accommodate opto-transistor outputs, and high drive ports capable of up to 10 mA cur- rent sinking per pin (3 pins maximum). A permanently enabled Watch-Dog Timer ensures opera- tional reliability across a broad range of mouse application environments. The precision RC oscillator filters out high- frequency noise from the oscillator input pin. When config- ured as inputs, P24-P27 have built in voltage dividers (25K pull-up /7.5K pull-down). The input levels are designed for connection to the emitters of the opto-transistors and switch at a voltage level of 0.4 VDD. For applications requiring powerful I/O capabilities, the Z86319 provides dedicated input and output lines that are grouped into three ports. There are two basic address spaces available to support this configuration: Program Memory, and 125 bytes of general-purpose registers. The Z86319 device provides two on-chip 8-bit programma- ble counter/timers with a large number of user-selectable modes. Each counter/timer is driven by its own 6-bit pro- grammable prescaler. The Z86319 counter/timers off-load system real-time tasks such as counting/timing and in- put/output data communications for increased system effi- ciency. Device ROM (KB) RAM* (Bytes) I/O Lines Voltage Range Z86319 2 125 13 4.5V to 5.5V Note: *General-Purpose (144K Total RAM) |
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