Z86317

P R E L I M I N A R Y Z86317 CMOS Z8® 8-BIT MCU PRELIMINAR Y CUSTOMER P ROCUREMENT S PECIFICA TION Z86317 CMOS Z8® 8-BIT MICROCONTROLLER FEATURES Part ROM Number (KB) Z86317 2 RAM* Speed (Bytes) (MHz) 124 4 I/O 13 Package (18-Pin) DIP, SOIC s P24-P27 Can be Configured as a Voltage Divider During Input Mode On-Chip Precision RC Oscillator (Tolerance = ± 10%) Fast Instruction Pointer: 1.5 µs @ 4 MHz ESD Protection Circuitry Hardwired Watch-Dog Timer (WDT) s s s s *General Purpose s s s 4.5- to 5.5-Volt Operating Range 0°C to + 40°C Operating Temperature Range Low-Power Consumption: 33 mW (Typical) GENERAL DESCRIPTION The Z86317 is a member of the Z8® family of CMOS microcontrollers architected to be used in mouse applications. These devices offer on-board pull-up and pull-down resistors, a scalable trip-point buffer to accommodate opto-transistor outputs, and high drive ports capable of up to 10 mA current sinking per pin (six pins maximum). A permanently enabled Watch-Dog Timer ensures operational reliability across a broad range of mouse application environments. The precision RC oscillator filters out highfrequency noise from the oscillator input pin. When configured as inputs, P24-P27 are configured as voltage divider (25K pull-up / 7.5K pull-down). The input levels are adjusted 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 Z86317 provides dedicated input an...