[INLINE] TRS-80 Model 100 Page _____________________________________________________________________________________________________________________ This is on overview and specs on the TRS-80 Model 100 portable computer. _____________________________________________________________________________________________________________________ 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 _____________________________________________________________________________________________________________________ M100 | M200 | M102 Last Modfied: 3/96 Init: 1/5/96 Created by: Andy Diller