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Z86L8508SSC Datasheet(PDF) 8 Page - Maxim Integrated Products |
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Z86L8508SSC Datasheet(HTML) 8 Page - Maxim Integrated Products |
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8 / 78 page  Z86L82/Z86L85 28-Pin Low-Voltage IR Microcontrollers 19-4613; Rev 0; 4/09 2 – Oscillator operational mode: normal high-frequency operation enabled versus 32-KHz operation enabled – Port 0: 0–3 pull-ups – Port 0: 4–7 pull-ups – Port 2: 0–7 pull-ups – Port 3: 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 ±50% at V CC=3 V and 450 K±50% at VCC=2 V. General Description The Z86L82/85 are ROM-based members of the Z8 MCU single-chip family of infrared (IR) controllers, featuring 237 bytes of general-purpose RAM and 4/8 KB of ROM, respectively. Maxim’s CMOS microcontrollers offer fast executing, effi- cient use of memory, sophisticated interrupts, input/output bit manipulation capa- bilities, automated pulse generation/reception, and internal key-scan pull-up transistors. The Z86L82/85 architecture is based on Maxim's 8-bit microcontroller core featur- ing an Expanded Register File to allow access to register-mapped peripherals, 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 ancillary fea- tures that are useful in many consumer, automotive, computer peripheral, and bat- tery-operated hand-held applications. Three basic address spaces are available to support a wide range of configura- tions: program memory, register file, and Expanded Register File. The register file consists of 256 bytes of RAM. It includes 4 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 addi- tional register groups (F and D). The Z86L82/85 offers a new intelligent counter/timer architecture with 8-bit and 16-bit counter/timers (Figure 1). Also included are a large number of user-select- able modes and two on-board comparators to process analog signals with sepa- rate reference voltages (see Figure 9 on page 18). Note: |
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