DS97KEY0204
P R E L I M I N A R Y
1
P
RELIMINARY
C
USTOMER
P
ROCUREMENT
S
PECIFICATION
Z86K13/K14/K15
K16/K17/K18
1
CMOS Z8
®
8-B
IT
MCU
K
EYBOARD
C
ONTROLLERS
FEATURES
■
4.5V to 5.5 V Operating Range
■
0
°
C to +70
°
C Operating Temperature Range
■
188 Bytes of Ram
■
Low-Power Consumption: 60 mW @ 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
GENERAL DESCRIPTION
The Z86KXX Keyboard Controllers are full-featured mem-
bers of the Z8
®
MCU family offering a unique register-to-
register architecture that avoids accumulator bottlenecks
and is more code efficient than RISC processors.
For keyboard applications demanding powerful I/O capa-
bilities, 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 modi-
fications in the output drivers and clock circuitry of the de-
vice.
ROM I/O Speed Pin Count/
Device (KB) Lines (MHz) Package
Z86K13 2 32 4-5 40-DIP, 44-PLCC,
44-QFP, COB
Z86K14 3 32 4-5 40-DIP, 44-PLCC,
44-QFP, COB
Z86K15 4 32 4-5 40-DIP, 44-PLCC,
44-QFP, COB
Z86K16 2 32 4-5 40-DIP, 44-PLCC,
44-QFP, COB
Z86K17 3 32 4-5 40-DIP, 44-PLCC,
44-QFP, COB
Z86K18 4 32 4-5 40-DIP, 44-PLCC,
44-QFP, COB