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TRS-80 Model 100 Page
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This is on overview and specs on the TRS-80 Model 100 portable computer.
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Radio Shack's TRS-80 Model 100 is a portable computer equipped with built-n software to perform a variety of useful
tasks such as text preparation, schedule and address organizing, and telecommunications.
Additionally, Model 100 has the following standard features:
* Enhanced version of Microsoft BASIC
* Full-size typewriter style keyboard
* LCD with seven lines by 40 columns
* Built-in modem
* Built-in cassette interface
* Built-in bar code reader interface
* Parallel printer interface
Other features available are: real time clock and calendar, upper and lowercase characters, and RAM internally expandable
to 32K bytes.
Specifications
Main Components
Keyboard
* 27
Number keys 10
Picture- control keys 7
Function keys 8
Special symbol keys 8
Mode keys 5
Other special- use keys 6
LCD display
Display panel
240 x 64 Full- Dot matrix
1/32 duty
1/6.66 bias
pot pitch
0.8 x 0.8 mm
Dot size
0.73 x 0.73 mm
Effective display area
191.2 x 50.4 mm
Operation batteries
Batteries
Four AA alkaline- manganese batteries
Operation time
5 days (at 4 hours/day)
\20 days (at I hour/day)
Note: I/O is disconnected.
Memory protection battery (on Main PCB)
Battery
Rechargeable
Protection time
About 40 days (8 KB)
About 10 days (32 KB)
Recharge method
Trickle charge by AC adaptor, or operation batteries
LSls
CPU
80C85
Code and pin compatible with 8085
ROM
Max. 64 KB (2 banks of 32 KB)
Standard 32 KB
Option 32 KB
RAM
Max. 32 KB
Standard 8 KB RAM pack
Incremental 8 KB RAM pack on PCB
Clock Calendar
aPD1990AC
No leap year/no February 29
I/O Interface
RS- 232C (conforms to EIA Standard)
Signal
TXR (Transmit Data)
RXR (Receive Data)
RTS (Request to Send)
CTS (Clear to Send)
DSR (Data Set Ready)
DTR (Data Terminal Ready)
Communications protocol
Word length
6, 7, or 8 bits
Parity
NON, EVEN, or ODD
Stop Bit length
1 or 2 bits
Baud rate
75, 110, 300, 600, 1200, 2400,4800, 9600, 19200 BPS
Max. transmission distance 5m
Driver max. voltage output +- 5V
Driver min. voltage output +- 3.5V
Receiver max. voltage input +- 18V
Receiver min. voltage input +- 3V
Modemlcoupler (conforms to BEL103 standards)
Baud rate 300 BPS
Programmable items:
Data length 6, 7, or 8 bits
Parity NON, EVEN, or ODD
Stop bit I or 2 bits
Full duplex Answer/call switchable mode
Other functions Hang- up and auto- dialer
Audio cassette interface
Data rate 1500 BPS (MARK: 2400 Hz, SPACE: 1200 Hz)
Printer interface (conforms to Centronics interface standards)
Handshake signal STROBE, BUSY, BUSY
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M100 | M200 | M102
Last Modfied: 3/96
Init: 1/5/96
Created by: Andy Diller