| Intel 4040 Central processing unit | |
 An Intel D4040 Microprocessor | |
| Produced: | From 1974 to 1981[1] |
| Manufacturer: | Intel |
| Max CPU clock: | 500 kHz to 740 kHz |
| Instruction set: | 4-bit BCD oriented |
| Package: | 24 pin DIP |
The Intel 4040 microprocessor was the successor to the Intel 4004. The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. An instruction set is a list of all the instructions and all their variations that a processor can execute The Intel 4004, the world's first commercially available single- chip Microprocessor, was a 4-bit CPU. In Computing and electronic systems binary-coded decimal ( BCD) is an encoding for decimal numbers in which each digit is represented by its own binary In Microelectronics, a dual in-line package (DIP, sometimes called a DIL package is an electronic device package with a rectangular housing and two parallel rows A microprocessor incorporates most or all of the functions of a Central processing unit (CPU on a single Integrated The Intel 4004 is a 4-bit Central processing unit (CPU released by Intel Corporation in 1971 It was introduced in 1974. Year 1974 ( MCMLXXIV) was a Common year starting on Tuesday (link will display full calendar of the 1974 Gregorian calendar. The 4040 employed a 10 μm silicon-gate enhancement load PMOS technology, was made up of 3,000 transistors[2] and could execute approximately 60,000 instructions per second. A micrometre ( American spelling: micrometer; symbol µm) is one millionth of a Metre, or equivalently one thousandth of a Millimetre pMOS logic uses p-type metal-oxide-semiconductor Field effect transistors (MOSFETs to implement Logic gates and other Digital circuits pMOS transistors have In Electronics, a transistor is a Semiconductor device commonly used to amplify or switch electronic signals Instructions per second (IPS is a measure of a Computer 's processor speed
Contents |
New features
- Interrupt
- Single Step
Extensions
- Instruction Set expanded to 60 instructions
- Program memory expanded to 8 KB
- Registers expanded to 24
- Subroutine stack expanded to 7 levels deep
Designers
Federico Faggin proposed the project, formulated the architecture and led the design. In Computing, an interrupt is an asynchronous signal from hardware indicating the need for attention or a synchronous event in software indicating the need for a change Federico Faggin (born December 1 1941) is an Italian -born Physicist / Electrical engineer, principally responsible for the design of The detailed design was done by Tom Innes.
New support chips
- 4201 - Clock Generator 500 to 740 kHz using 4 to 5. 185 MHz crystals
- 4308 - 1 KB ROM
- 4207 - General Purpose byte Output port
- 4209 - General Purpose byte Input port
- 4211 - General Purpose byte I/O port
- 4289 - Standard Memory Interface (replaces 4008/4009)
- 4702 - 256 byte UVEPROM
- 4316 - 2 KB ROM
- 4101 - 256 4-bit word RAM
References
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic