PRELIMINARY PRODUCT SPECIFICATION
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Z86L04/L08
1
Z8 8-BIT COST-EFFECTIVE
MICROCONTROLLERS
FEATURES
■ ROM Mask/OTP Options:
ROM
(KB)
RAM* Speed Auto Permanent
(Bytes) (MHz) Latch WDT
–
–
–
–
–
–
–
ROM Protect
Device
Auto Latch Disable
Z86L04
Z86L08
1K
2K
125
125
8
8
Optional Optional
Optional Optional
Permanent Watch-Dog Timer (WDT)
RC Oscillator
Note: *General-Purpose
32 kHz Crystal Operation
Low EMI
■ 18-Pin DIP and SOIC Packages
WDT Clock Source (Z86L04 only)
■ 0 °C to + 70 °C Standard Temperature
■ 2.0V to 3.9V Operating Range
■ 14 Input / Output Lines
■ Two Programmable 8-Bit Counter/Timers with
6-Bit Programmable Prescalers
■ Power-On Reset (POR) Timer
■ Five Vectored, Prioritized Interrupts from Five Different
■ On-Chip Oscillator that Accepts RC, Crystal, Ceramic
Sources
Resonator, LC, or External Clock Drive
■ Two On-Board Comparators
■ Clock-Free WDT Reset
■ Software Enabled Watch-Dog Timer (WDT)
■ Programmable Interrupt Polarity
■ Two Standby Modes: STOP and HALT
■ Low-Voltage Protection
■ Low-Power Consumption (40 mw)
■ Fast Instruction Pointer (1.5 µs @ 8 MHz)
■ Fourteen Digital Inputs at CMOS Levels;
Schmitt-Triggered
GENERAL DESCRIPTION
Zilog's Z86L04/L08 microcontrollers (MCUs) are members
of the Z8 single-chip MCU family, which offer easy soft-
ware/hardware system expansion.
One on-chip counter/timer, with a large number of user-se-
lectable modes, off-load the system of administering real-
time tasks such as counting/timing and I/O data communi-
cations. Additionally, two on-board comparators process
analog signals with a common reference voltage (Figure
1).
For applications demanding powerful I/O capabilities, the
MCU's dedicated input and output lines are grouped into
three ports, and are configurable under software control to
provide timing, status signals, or parallel I/O.
DS97LVO0901
P R E L I M I N A R Y
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