Z86K14 Datasheet | Zilog.

FEATURES Device Z86K13 Z86K14 Z86K15 Z86K16 Z86K17 Z86K18 ROM (KB) 2 3 4 2 3 4 I/O Lines 32 32 32 32 32 32 Speed (MHz) 4-5 4-5 4-5 4-5 4-5 4-5 Pin Count/ Package 40-DIP, 44-PLCC, 44-QFP, COB 40-DIP, 44-PLCC, 44-QFP, COB 40-DIP, 44-PLCC, 44-QFP, COB 40-DIP, 44-PLCC, 44-QFP, COB 40-DIP, 44-PLCC, 44-QFP, COB 40-DIP, 44-PLCC, 44-QFP, COB s s Low-Power Consumption: 60 m W @ 5 MHz Five Vectored, Priority Interrupts from FIve Different Sources A Programmable 8-Bit Counter/Timer, with 6-Bit Programmable Prescaler Power-On-Reset (POR) Timer, Hardware Watch-Dog Timer (WDT) Digital Inputs CMOS Levels with Internal Pull-Up Resistors Four Direct Connect LED Drive Ports On-Chip RC Oscillator (Z86K13/14/15) On-Chip Oscillator that Accepts a Crystal, Ceramic Resonator, LC, or External Clock Drive (Z86K16/17/18) Low System EMI Emission s s s s s s s s s 4.5V to 5.5 V Operating Range 0°C to +70°C Operating Temperature Range 188 Bytes of Ram s GENERAL DESCRIPTION The Z86KXX Keyboard Controllers are full-featured members of the Z8® MCU family offering a unique register-toregister architecture that avoids accumulator bottlenecks and is more code efficient than RISC processors. For keyboard applications demanding powerful I/O capabilities, the Z86KXX provides 32 pins dedicated to input and output for row, column, clock, data, and LEDs. The on-chip counter/timer is available to relieve the system of administering real-time tasks. Five different internal or external interrupt sources are maskable and prioritized in which a vectored address is provided for efficient interrupt subroutine handling and multitasking functions. The Z86K15 achieves low EMI by means of several modifications in the output drivers and clock circuitry of the device. DS97KEY0204 PRELIMINARY Z86K13/K14/K15/K16/K17/K18 CMOS Z8® 8-Bit MCU Keyboard Controllers Zilog GENERAL DESCRIPTION (Continued) Notes: All signals with a preceding front slash, “/”, are active Low. For example, B//W (WORD is active...