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Z86D7308HSC Datasheet(PDF) 8 Page - Zilog, Inc. |
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Z86D7308HSC Datasheet(HTML) 8 Page - Zilog, Inc. |
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8 / 92 page  Z86D73 40/44/48-Pin Low-Voltage IR OTP PS019402-1103 P R E L I M I N A R Y 2 – Oscillator operational mode: normal high-frequency operation enabled or 32-KHz operation enabled – Port 0: 0–3 pull-ups – Port 0: 4–7 pull-ups – Port 1: 0–3 pull-ups – Port 1: 4–7 pull-ups – Port 2: 0–7 pull-ups – Port 0: 0–3 mouse mode: normal mode (.5VDD input threshold) versus mouse mode (.4VDD input threshold) The mask option pull-up transistor has a typical equivalent resistance of 200 K Ω ±50% at V CC=3 V and 450 KΩ ±50% at VCC=2 V. General Description The Z86D73 is an OTP-based member of the MCU family of IR (infrared) micro- controllers. With 237 bytes of general-purpose RAM and 32 KB of ROM, ZiLOG’s CMOS microcontrollers offer fast executing, efficient use of memory, sophisticated interrupts, input/output bit manipulation capabilities, automated pulse generation/ reception, and internal key-scan pull-up transistors. The Z86D73 architecture is based on ZiLOG’s 8-bit microcontroller core with an Expanded Register File to allow access to register-mapped peripherals, input/out- put (I/O) circuits, and powerful counter/timer circuitry. The Z8 offers a flexible I/O scheme, an efficient register and address space structure, and a number of ancil- lary features that are useful in many consumer, automotive, computer peripheral, and battery-operated hand-held applications. There are four basic address spaces available to support a wide range of configu- rations: Program Memory, Register File, Expanded Register File, and External Memory. The register file is composed of 256 bytes of RAM. It includes 4 I/O port registers, 16 control and status registers, and 236 general-purpose registers. The Expanded Register File consists of two additional register groups (F and D). To unburden the program from coping with such real-time problems as generating complex waveforms or receiving and demodulating complex waveform/pulses, the Z86D73 offers a new intelligent counter/timer architecture with 8-bit and 16-bit counter/timers (see Figure 1). Also included are a large number of user- selectable modes and two on-board comparators to process analog signals with separate reference voltages (see Figure 2). Note: |
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