Eastern Microprocessors

CMOS technology; DIP 40; set with 158 instructions with 16-, 8-, 4- and single-bit-instructions and additional kinds of addresses; single +5 V power supply; current admission 15 mA (stand by < 10 mA)

U 84 C 00 DC 02: 2.5 MHz; standby modus possible
U 84 C 00 DC 02-1: 2.5 MHz; standby modus not possible
U 84 C 00 DC 04: 4 MHz; standby modus possible

The only GDR processor without a western equivalent. Was built in an PDP-11 clone; able to work in 16 bit applications by means of connecting two chips.

Z80 clone; pin- and function compatible with U 84 C 00; N-Channel silicon gate MOS technology;
set of 158 instructions with 16-, 8-, 4- and single-bit-Instructions and additional kind of addresses; single +5 V power supply; dissipation 1.1 W; storage temperature –55° to + 125 °C; operating temperature U... 0° to 70 °C, V... -25° to +85 °C
The 8-Bit-microprocessor system U880 consists fundamentally of the following devices:
U880-CPU   central processing unit
U855-PIO    parallel input / output
U856-SIO    serial input / output
U857-CIC    counter timer circuit
U858DMA   direct memomy access

1 to 4 MHz

 

VEB Mikroelektronik Karl Marx Erfurt U 880 D	MME UA 880 D	MME UB 880 D	MME UB 880 D MEK4
40 pin DIP	40 pin DIP	40 pin DIP	40 pin DIP
1 MHz	4 MHz	2.5 MHz	2.5 MHz

MME UB 880 D S1	MME 80A-CPU	MME VB 880 D
40 pin DIP	40 pin DIP	40 pin DIP
2.5 MHz slow and delicate	-	2.5 MHz op.temp. -25° to +85 °C

Fulfill a number of functions, which can be realized with usual computer systems only by using several components; 43 instructions

N-Channel silicon gate MOS technology; includes CPU, ROM, RAM, PIO / UART / CTC; U881 is a circuit with 40 signal pins and is designed for components manufactured in high numbers and non-erasable programms. The content of programm storage requested by the user is fixed during the definition of circuits and following manufacturing (programming of ROM-mask); compatible to Z8601 of Zilog

UX 8810 D: single-chip-microcomputer; internal ROM; mask programmed

UX 8811 D: single-chip-microcomputer; internal ROM; mask programmed;
                  power down option

X: B = 8 MHz version
    C = 5 MHz version
    D = 3.6 MHz version

0.5 to 4 MHz

N-Channel silicon gate MOS technology; includes CPU, RAM, PIO / UART / CTC; external EPROM; the U882 (64 pin ZIP) has no internal program storage; additional pins make possible a connection of an external program storage (EPROM) instead of an internal ROM; the internal structure of both circuits U881 and U882 are identical except the lacking internal program storage of U882; compatible to Z8602 of Zilog.

UX 8820 M: single-chip-microcomputer (development version) with external
                  (2 k x 8 bit) ROM and internal (128 x 8) Bit RAM; QUIP 64 (ZIP)

UX 8821 M: single-chip-microcomputer (development version) with external
                  (2 k x 8 bit) ROM and internal (128 x 8) Bit RAM, power down option
                  QUIP 64 (ZIP)

X: B = 8 MHz version
    C = 5 MHz version
    D = 3.6 MHz version

0.5 to 4 MHz

N-Channel silicon gate MOS technology; information about internal structure of U882 is also valid for the U883 (40 pins). The internal ROM-program storage is pre-set with a free usable BASIC-Interpreter and Bootstrap routine.

UX 8830 D: single-chip-microcomputer with Bootstrap-Lader and Basic-Interpreter
                  2 KByte ROM; DIP 40

UX 8831 D: single-chip-microcomputer with Bootstrap-Lader and Basic-Interpreter;
                  power down option; 2 KByte ROM; DIP 40

X: B = 8 MHz version
    C = 5 MHz version
    D = 3.6 MHz version

0.5 to 4 MHz

N-Channel silicon gate MOS technology; compatible to Z8612 of Zilog but with hardware difference (Z8612 = DIP); 64 pin ZIP; development version of U882 with 4Kbyte memory port;

UX 8840 M: single-chip-microcomputer (development version) with external
                  (4 k x 8 bit) ROM and internal (128 x 8) Bit RAM; QUIP 64 (ZIP)

UX 8841 M: single-chip-microcomputer (development version) with external
                  (4 k x 8 bit) ROM and internal (128 x 8) Bit RAM, power down option
                  QUIP 64 (ZIP)

X: B = 8 MHz version
    C = 5 MHz version
    D = 3.6 MHz version

UX 8860 D: single-chip-microcomputer with internal (128 x 8) Bit RAM; version
                  without ROM; DIP 40

UX 8861 D: single-chip-microcomputer witht internal (128 x 8) Bit RAM; version
                  without ROM; power down option; DIP 40

U 8611 DC 08-XXX: single-chip-microcomputer with internal (4 k x 8 Bit) ROM and
                             internal (128 x 8) Bit RAM; DIP 40

UL 8611 DC 08-XXX: single-chip-microcomputer with internal (4 k x 8 Bit) ROM and
                               internal (128 x 8) Bit RAM; power down option; DIP 40

U 8611 DC 08/1: single-chip-microcomputer with internal (128 x 8) Bit RAM;
                         version without ROM; DIP 40

UL 8611 DC 08/1: single-chip-microcomputer with internal (128 x 8) Bit RAM;
                           version without ROM; power down option; DIP 40

X: B = 8 MHz version
    C = 5 MHz version
    D = 3.6 MHz version

Z80 clone

8-bit microprocessor; 8088-clone; software compatible with 8086; 1 MByte memory directly for address; 40 pin; power dissipation 2.5 W

5 MHz