MOTOTECH P.O. Box
144 Millbury, Ma.
01527 (508) 755-9778
mototech@msn.com
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INTRODUCTION.
Thank you for your inquiry about the Z80 Computer. This computer is very
cost effective and provides a terrific platform for projects or products. It
would also make a great educational platform for college courses in
microcomputer hardware or software. There are presently 2,600 units available,
they are boxed new, and manufactured by a major brand name. These computers are
just too good to be passed up by intelligent developers and educators. So
please, call me, and order as many as you like.
HISTORY. What in the world am I doing with 2,600 Z80 Computers? Well,
my name is James Pellegrini and I am a software engineer. I have been in
business since 1984 and I sell various microcomputer products that I design and
develop. Some products have been complete new designs, while others have been
add-on products (VAR) to existing hardware (like the Z80 Computer). So, several
years ago I heard about these computers and I sent away for a sample. When I saw
it I thought it was the coolest Z80 ever designed; it was great looking and knew
it would be the perfect computer to house some of my designs. I had to have
them; and I got them! But, as things go in business, other projects took
priority, and I never got to use up all my Z80 Computers. (Shame on me!) This is
killing me because I could make 20 times what I am selling them for; if only I
had the time to develop my original Z80 idea. AUGH!!
TECHNICAL
INFORMATION. Here is the basic technical information concerning the
features and functions of the Z80 Computer. A technical manual and schematic
comes with each order. If you have any questions please call.
Motherboard
4.0MHz Z80A - running at
3.58MHz
Interrupts - eight levels,
maskable, mode 2 vectored
- 2-Serial,
Keyboard, Video, and 4-I/O Card Slots
64K DRAM - has eight
HM4864-2
4/8K EPROM - jumper select 4K or
8K
- comes with 4K
EPROM (many routines)
- no operating
system available
- develop code
with an EPROM emulator
- may be
de-selected by software
TNS9918 Video Display - requires
data manual
- Composite
Color Video (NTSC Compatible)
- TV RF
Modulator (Ch 3 or Ch 4)
- 256 x 192
Resolution (Graphics)
- 40 x 24 Text
(TV Screen Readable)
- 32 Sprite
Planes (Animation Patterns)
- 15 Colors
(Plus Transparent)
AY-3-8910 Sound Generator -
requires data manual
- 3 Channels of
Sound
- Sound
Effects, Music Synthesis, Alarms
- TV Set Output
(RF Modulator)
- External
Amplifier Output (Line level)
TR1863 High Speed UART - EIA
RS-422
- Full Duplex,
111 Kbits/sec
- can be
modified for standard BAUD rates
- can be
modified for RS-232/RS-485 protocols
- contact
MOTOTECH for modification info
Keyboard
(17"x7'x2.5')
- charcoal
gray, black keys
- durable
plastic, full stroke keyboard
- 2-key
rollover, auto repeat
- 2 DB-9
joystick connectors
Computer I/O
4 Card Slots - 30 pin 0.1"
SIP male header
- for user I/O
Circuits or Cards
- contains
bi-directional data lines
- contains 16
decoded addresses each
- other signals
- control, clocks, power
Audio Output - RCA phono
connector
- 10 KOhm
output impedance
- 1.5V p-p
signal
Video Output - RCA phono
connector
- 75 Ohm , 1V
p-p, +/-6dB negative sync
- Composite
Video (NTSC Compatible)
External RF Input - Type-F
connector
- 75 Ohm CATV
cable input
- input signal
for normal TV viewing
TV RF Output - Type-F
connector
- 75 Ohm cable
output
- Video and
Audio are RF modulated
- Ch 3 or Ch 4
modulator switch
- software
switchable output (TV/Computer)
Serial Interface - 5-pin DIN
connector
- RS-422
protocol, Full Duplex, 111 Kbits/sec
- contact
MOTOTECH for modification info
Keyboard Interface - 6-pin DIN
connector
- serial RS-422
protocol
Printer Interface - DB-15
connector
- 8-bit
parallel printer port with handshaking
Enclosure
(18.5"x11x4")
- charcoal
gray, with plastic front panel
- contains
power supply & motherboard
- 4-screw, easy
open, easy access cover
- Front: ON/OFF
& reset switches
- Front: 4
LEDs, 3 are programmable
- Back: 7
connectors & 4 I/O panels
- all metal
case, effective RF shielding
Power Supply
- 40 Watts
AC/DC Switching Supply & Fan
-
+5V@2.5A/+12V@2.0A/-12V@0.1A
- sealed and
separate from motherboard
Qty
Price +S&H
1 ...................... $89.00
$11.00
10
...................... $80.00 CALL
25
...................... $70.00 "
"
50
...................... $60.00 "
"
200
...................... $50.00 "
"