Microprocessors

ARM7 is a group of older 32-bit RISC ARM processor cores licensed by ARM Holdings for microcontroller use.

ARM9 is a group of older 32-bit RISC ARM processor cores licensed by ARM Holdings for microcontroller use.

H8 is the name of a large family of 8-bit, 16-bit and 32-bit microcontrollers made by Renesas Technology, originating in the early 1990s within Hitachi Semiconductor.

The MCS-48 microcontroller (µC) series, Intels first microcontroller, was originally released in 1976. Its first members were 8048, 8035 and 8748. Initially, this family was produced using NMOS (n-type metal–oxide–semiconductor) technology. In the early 1980s, it became available in CMOS technology. It was still manufactured into the 1990s to support older designs that still used it.

The MCS-48 series has a modified Harvard architecture, with internal or external program ROM and 64–256 bytes of internal (on-chip) RAM. The I/O is mapped into its own address space, separate from programs and data. The 8048 is probably the most prominent member of Intels MCS-48 family of microcontrollers.

Device Internal Memory Remarks
8020 1K × 8 ROM 64 × 8 RAM subset of 8048, 20 pins, only 13 I/O lines
8021 1K × 8 ROM 64 × 8 RAM subset of 8048, 28 pins, 21 I/O lines
8022 2K × 8 ROM 64 × 8 RAM subset of 8048, A/D-converter
8035 none 64 × 8 RAM
8039 none 128 × 8 RAM
8040 none 256 × 8 RAM
8048 1K × 8 ROM 64 × 8 RAM
8049 2K × 8 ROM 128 × 8 RAM
8050 4K x 8 ROM 256 × 8 RAM
8748 1K × 8 EPROM 64 × 8 RAM
8749 2K × 8 EPROM 128 × 8 RAM
87P50 ext. ROM socket 256 × 8 RAM Has piggy-back socket for 2758/2716/2732 EPROM.
8648 1K × 8 OTP EPROM 64 × 8 RAM factory OTP EPROM

he MCS-48 microcontroller (µC) series, Intels first microcontroller, was originally released in 1976. Its first members were 8048, 8035 and 8748. Initially, this family was produced using NMOS (n-type metal–oxide–semiconductor) technology. In the early 1980s, it became available in CMOS technology. It was still manufactured into the 1990s to support older designs that still used it.

The MCS-48 series has a modified Harvard architecture, with internal or external program ROM and 64–256 bytes of internal (on-chip) RAM. The I/O is mapped into its own address space, separate from programs and data. The 8048 is probably the most prominent member of Intels MCS-48 family of microcontrollers.

Device Internal Memory Remarks
8020 1K × 8 ROM 64 × 8 RAM subset of 8048, 20 pins, only 13 I/O lines
8021 1K × 8 ROM 64 × 8 RAM subset of 8048, 28 pins, 21 I/O lines
8022 2K × 8 ROM 64 × 8 RAM subset of 8048, A/D-converter
8035 none 64 × 8 RAM
8039 none 128 × 8 RAM
8040 none 256 × 8 RAM
8048 1K × 8 ROM 64 × 8 RAM
8049 2K × 8 ROM 128 × 8 RAM
8050 4K x 8 ROM 256 × 8 RAM
8748 1K × 8 EPROM 64 × 8 RAM
8749 2K × 8 EPROM 128 × 8 RAM
87P50 ext. ROM socket 256 × 8 RAM Has piggy-back socket for 2758/2716/2732 EPROM.
8648 1K × 8 OTP EPROM 64 × 8 RAM factory OTP EPROM

The 6502 is an 8-bit processor designed by MOS Technology in 1975, based on the design of the Motorola 6800. When it was introduced it was the least expensive full featured CPU on the market by far, at about 1/6th the price, or less, of competing designs from larger companies such as Motorola and Intel. It was nevertheless faster than most of them, and, along with the Zilog Z80, sparked off a series of computer projects that would eventually result in the home computer revolution of the 1980s. The 6502 design was originally second-sourced by Rockwell and Synertek and later licensed to a number of companies; it is still made for embedded systems.

Sharp SM510: ROM 2772×8 bit, RAM 128×4 bit, a divider and 132-segment LCD driver circuit

SM8500 series is a 1-chip microcomputer containing
SM85CPU core and the required peripheral functions
for system. SM85CPU is an 8-bit high performance
CPU with various addressing modes and highefficiency instructions set. SM85CPU is featured by
allocating general registers on RAM to reduce
overhead when calling subroutines.
The peripheral functions and memory of SM8500
series contain ROM, RAM, timer/event counter, serial
interfaces (SIO, UART), AID converter, and D/A
converter and waveform generator.
The SM8500 series are offered by a variety of models
with different capacity of memory. These are SM8502,
SM8503, SM8504, SM8505, and SM8506.

The ST2205U is a 8-bit integrated microcontroller designed with CMOS silicon gate technology. The true static CPU core, power down modes and dual oscillators design makes the ST2205U suitable for power saving and long battery life designs.