器件名称: Z8631904SSC
功能描述: PS/2 MOUSE CONTROLLER
文件大小: 278.46KB 共23页
简 介:PRELIMINARY PRODUCT SPECIFICATION
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Z86319
PS/2 MOUSE CONTROLLER
FEATURES
Device Z86319 ROM (KB) 2 RAM* (Bytes) 125 I/O Lines 13 Voltage Range 4.5V to 5.5V
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P24-P27 Can Be Configured with a Voltage Divider During Input Mode On-Chip Oscillator (Tolerance = ±10%) Fast Instruction Pointer: 1.5 s @ 4 MHz ESD Protection Circuitry Hardwired Watch-Dog Timer (WDT) Excellent System Level EMI/EFT/ESD
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Note: *General-Purpose (144K Total RAM) s s
0°C to + 40°C Operating Temperature Range Low-Power Consumption: 25 mW (Typical)
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GENERAL DESCRIPTION
The Z86319 is a member of the Z8 family of CMOS microcontrollers architecture to be used in mouse applications. These devices offer on-board pull-up and pull-down resistors, a trip-point buffer to accommodate opto-transistor outputs, and high drive ports capable of up to 10 mA current sinking per pin (3 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 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 a……
