Z86L8108HSC Просмотр технического описания (PDF) - Maxim Integrated

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Z86L8108HSC

28-Pin Low-Voltage Infrared Microcontrollers

Maxim Integrated 

Z86L81/86/98

28-Pin Low-Voltage Infrared Microcontrollers

3

General Description

Based on the Z8 MCU single-chip family of IR microcontrollers, the Z86L81/86/98

features 237 bytes of general-purpose RAM and 24/32/64 KB of ROM. The Maxim

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 Z86L81/86/98 architecture is based on the Maxim 8-bit microcontroller core

with an Expanded Register File to allow access to register-mapped peripherals,

input/output (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 num-

ber of ancillary features that are useful in many consumer, automotive, computer

peripheral, and battery-operated hand-held applications.

There are three basic address spaces available to support a wide range of config-

urations: Program Memory, Register File, and Expanded Register File. The regis-

ter file is composed of 256 bytes of RAM. It includes 3 I/O port registers, 16

control and status registers, and 236 general-purpose registers. Register FEh

(SPH) can be used as a general-purpose register. 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

Z86L81/86/98 offers a new intelligent counter/timer architecture with 8-bit and

16-bit counter/timers (see Figure 1, Figure 2, Figure 3, and Table 3). Also included

are a large number of user-selectable modes, and two on-board comparators to

process analog signals with separate reference voltages (Figure 9 on page 20).

Power connections use the conventional descriptions listed in Table 2.

Table 2. Power Connections

Connection

Power

Ground

Circuit

VCC

GND

Device

VDD

VSS

19-4615; Rev 0; 4/09

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