Mr. Nagano, from Tokyo, Japan send me photos and circuit diagram of an AIM 65 clone he built.

It is a beautiful and functionally and esthetic faithful clone. In fact, he built two, one with a CPLD 3V3 version and a 5V version with a 6532 RIOT.

Features of the AIM-65 clone

Hardware

• TTY Interface (usb-serial)
• Thermal Printer
• QWERTY keyboard
• 20 x 16-Segment Display
• No Cassette Tape Interface

Power Supply

• Main Logic: 3.3V
• 16-Segment Display : 5V
• Thermal printer: 9V

Clock

• CPU/ROM/RAM:
  • 16, 12, 8MHz etc. can be selected by replacing the OSC module.
  • 　 In addition, 1, 1/2, 1/4, 1/8 can be selected by the DIP switch on the CPLD board
• Peripherals ( VIA/PIA/RIOT ) :
  • If the CPU clock is set to 1 or 1/2, peripherals will run at 1/4 of that frequency.
  • When the CPU clock is set to 1/4 or 1/8, peripherals run at the same frequency as the CPU.

Software
The following can be selected by setting the DIP SWITCH of the FLASH memory board.

• 000: 8K BASIC/ASSEMBLER
• 001: FORTH + MATHPACK
• 010: PL65/ASSEMBLER
• 011: GWK-BASIC V2.1 for Siemens PC100
• 100: Instant PASCAL
• 101..111: Reserved

Mr. Nagano also made a version with a voltage of 5V and running at 2MHz. R65C02, R65C22, R6532A are used for it.