P
RELIMINARY
P
RODUCT
S
PECIFICATION
1
Z86C04/C08
CMOS 8-B
IT
L
OW
-C
OST
1K/2K-ROM M
ICROCONTROLLERS
FEATURES
Part
Number
Z86C04
Z86C08
ROM
(KB)
1
2
RAM* Speed
(Bytes) (MHz)
125
125
12
12
Auto Permanent
Latch
WDT
Optional
Optional
Optional
Optional
–
–
–
s
1
Permanent Watch-Dog Timer (WDT)
RC Oscillator
32 kHz Operation
Note:
* General-Purpose
s
s
s
Two Programmable 8-Bit Counter/Timers,
Each with 6-Bit Programmable Prescaler
Power-On Reset (POR) Timer
On-Chip Oscillator that Accepts RC, Crystal,
Ceramic Resonance, LC, or External Clock Drive
Clock-Free WDT Reset
Low-Power Consumption (50mw)
Fast Instruction Pointer
(1.0
µ
s @ 12 MHz)
Fourteen Digital Inputs at CMOS Levels;
Schmitt-Triggered
Software Enabled Watch-Dog Timer
Programmable Interrupt Polarity
Two Standby Modes: STOP and HALT
Low-Voltage Protection
18-Pin DIP and SOIC Packages
3.0V to 5.5V Operating Range
Available Temperature Ranges
A = –40
°
C to +125
°
C
E = –40
°
C to +105
°
C
S = 0
°
C to +70
°
C
14 Input / Output Lines
Six Vectored, Prioritized Interrupts from Six Different
Sources
Two On-Board Comparators
s
s
s
s
s
s
s
s
s
s
s
ROM Mask Options:
– Low Noise
– ROM Protect
– Auto Latch
– System Clock Driving WDT (Z86C04 only)
s
s
s
GENERAL DESCRIPTION
Zilog’s Z86C04/C08 are members of the Z8
®
MCU single-
chip microcontroller family which offer easy software/hard-
ware system expansion
.
For applications demanding powerful I/O capabilities, the
Z86C04/C08’s dedicated input and output lines are
grouped into three ports, and are configurable under soft-
ware control to provide timing, status signals, or parallel
I/O.
Two on-chip counter/timers, with a large number of user
selectable modes, off-load the system of administering
real-time tasks such as counting/timing and I/O data com-
munications. Additionally, two on-board comparators pro-
cess analog signals with a common reference voltage (Fig-
ure 1).
DS97DZ80502
PRELIMINARY
1
ZILOG [ ZILOG, INC. ]
