P
RELIMINARY
P
RODUCT
S
PECIFICATION
1
Z86418
Z8 8-B
IT
M
OUSE
C
ONTROLLER
F
EATURES
S
CALABLE
T
RIP
-P
OINT
B
UFFER
,H
IGH
D
RIVE
P
ORTS
FEATURES
Device
Z86418
ROM
(KB)
3
RAM*
(Bytes)
125
I/O
Lines
14
Speed
(MHz)
4-5
s
s
1
Pin Count Package: 18-Pin DIP, 18-Pin SOIC
ROM Mask Options:
– Permanent Watch-Dog Timer
– ROM Protect
–
–
Low-Voltage Protection
Pull-Up/Pull-Down I/O Pins
(Nibble Programmable-except Port 3)
Note:
*General-Purpose
s
s
s
s
0
°
C to 70
°
C Operating Temperature Range
4.0-6.0V Operating Range
Low-Power Consumption: 25 mW (Typical)
On-Chip Oscillator (Crystal, Ceramic Resonator, LC, or
External Clock Drive)
s
s
s
ESD Protection Circuitry
Fast Instruction Pointer: 1.5
µ
s @ 4 MHz
Lower System Level EMI & EFT
GENERAL DESCRIPTION
The Z86418 is a member of the Z8
®
MCU family of CMOS
microcontrollers. This device offers on-board pull-up and
pull-down resistors (ROM mask-option programmable on a
nibble basis), a scalable trip-point buffer to accommodate
opto-transistor outputs, and High drive ports capable of up
to 10 mA current sinking per pin (3 pins maximum).
These devices also offer users a selection of ROM mask
options, which include a permanently enabled Watch-Dog
Timer that ensures operational reliability across a broad
range of application environments.
For applications requiring powerful I/O capabilities, the
Z86418 provides dedicated input and output lines that are
grouped into three ports. These ports can be configured by
means of ROM mask options (nibble-programmable) as
pull ups, pull downs, or neither. There are two basic ad-
dress spaces available. Program Memory, and 125 bytes
of general-purpose registers.
The Z86418 devices provide two on-chip 8-bit programma-
ble counter/timers with a large number of user-selectable
modes. Each counter/timer is driven by its own 6-bit pro-
grammable prescaler. The Z86418 counter/timers off-load
system real-time tasks such as counting/timing and in-
put/output data communications for increased system effi-
ciency.
Note:
All Signals with an overline, “ ”, are active Low. For
example: B/W, in which WORD is active Low; or B/W, in
which BYTE is active Low.
DS97KEY1404
PRELIMINARY
1
Z86418
Z8 8-Bit Mouse Controller
Zilog
ABSOLUTE MAXIMUM RATINGS
Sym.
V
DD
T
STG
T
A
Parameter
Supply Voltage*
Storage Temp.
Oper. Ambient Temp.
Min.
–0.3
–65
°
0
Max.
+7
+150
°
+70
Units
V
C
C
Stresses greater than those listed under Absolute Maxi-
mum Ratings may cause permanent damage to the de-
vice. This rating is a stress rating only; operation of the de-
vice at any condition above those indicated in the
operational sections of these specifications is not implied.
Exposure to absolute maximum rating conditions for ex-
tended periods may affect device reliability.
Note:
*Voltages on all pins with respect to Ground.
STANDARD TEST CONDITIONS
The characteristics listed below apply for standard test
conditions as noted. All voltages are referenced to
Ground.Positive current flows into the referenced pin (Fig-
ure 3).
From Output
Under Test
I
150 pF
Figure 3. Test Load Diagram
CAPACITANCE
T
A
= GND = 0V, f = 1.0 MHz, unmeasured pins returned to Ground.
Parameter
Input Capacitance
Output Capacitance
I/O Capacitance
Min.
0
0
0
Max.
10 pF
20 pF
25 pF
V
CC
SPECIFICATION
V
CC
= 4.0V to 6.0V
4
PRELIMINARY
DS97KEY1404
Zilog
Z86418
Z8 8-Bit Mouse Controller
DC ELECTRICAL CHARACTERISTICS
T
A
= 0
°
C to +70
°
C
Sym
V
CH
V
CL
V
IH
V
IL
V
OH
V
OL1
V
OL2
V
LV
V
TP
Parameter
Clock Input High Voltage
Clock Input Low Voltage
Input High Voltage Schmitt-Triggered
Input Low Voltage Schmitt-Triggered
Output High Voltage
Output Low Voltage
Output Low Voltage
V
CC
Low-Voltage Protection*
Trip-Point Voltage*
4.0V
5.0V
6.0V
4.0V
5.0V
6.0V
4.0V
6.0V
4.0V
6.0V
V
DD
4.0V
6.0V
4.0V
6.0V
4.0V
6.0V
4.0V
6.0V
4.0V
6.0V
4.0V
6.0V
4.0V
6.0V
2.1
1.3
1.7
2.1
0.83
1.05
1.25
–1.0
–1.0
–1.0
–1.0
Min
0.7 V
DD
0.7 V
DD
V
SS
– 0.3
V
SS
– 0.3
0.7 V
DD
0.7 V
DD
V
SS
– 0.3
V
SS
– 0.3
V
DD
– 0.4
V
DD
– 0.4
0.6
0.6
1.2
1.2
2.7
1.9
2.3
2.7
1.00
1.25
1.49
1.0
1.0
1.0
1.0
Max
V
DD
+ 0.3
V
DD
+ 0.3
0.2 V
DD
0.2 V
DD
V
DD
+ 0.3
V
DD
+ 0.3
0.2 V
DD
0.2 V
DD
Units Conditions
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
I
OH
= –2.0 mA
I
OL
= +4.0 mA
II
OL
= 20.0 mA, 3 Pin Max
II
OL
= 10.0 mA, 3 Pin Max
@ 2 MHz Max
P24–P27
Driven by External Clock
Generator
Driven by External Clock
Generator
1
V
OC
Input Open-Circuit Voltage
I
IL
I
OL
Input Leakage
Output Leakage
V No Off-Chip Resistance
V
V
µA
V
IN
= 0V, V
CC
µA
µA
V
IN
= 0V, V
CC
µA
Note:
*The Z86418 is functional to V
LV
voltage. The minimum operational V
DD
is determined by the value of the V
LV
voltage at ambient
temperature. The V
LV
voltage increases as temperature decreases.
DS97KEY1404
PRELIMINARY
5
Integrated technical exchanges
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