Recherchez avec le numéro de pièce ainsi que le fabricant ou la description
The INS8255 is a programmable peripheral interface contained in a standard, 4().pin dual·in·line package. The chip, which is fabricated using N·charinel silicon gate technology, functions as a general·purpose parallel input/output interface in National Semiconductor's N8080 microcomputer family. The functional configura· tion of the INS8255 is programmed by .
• Outputs Source 1 mA at 1.5 Volts
• 24 Programmable Input/Output Pins
• Direct Bit Set/Reset Capability
• TTL Compatible
• Reduces System Component Count
• MICROBUSiM
* Compatible
INS8255 MICROBUS Configuration
CPU GROUP
ADDRESS
BUS
DATA
BUS
CONTROL
BUS
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Typical Diagram of MODE 0 operation. The 8 bit ports A, B. C are defined by the user's program to be either an input or an output from/to the peripherals.
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*Trademark. National Semiconductor Corp. © 1978 National Semiconductor Corp.
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DC Electri.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | INS8255 |
National Semiconductor |
Programmable Peripheral Interface |
|
| 2 | INS8250 |
National Semiconductor |
Asynchronous Receiver/Transmitter |
|
| 3 | INS8250-B |
National Semiconductor |
Asynchronous Receiver/Transmitter |
|
| 4 | INS8250A |
National Semiconductor |
UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER |
|
| 5 | INS8251 |
National Semiconductor |
Programmable Communication Interface |
|
| 6 | INS8253 |
National Semiconductor |
Programmable Interval Timer |
|
| 7 | INS8254 |
National Semiconductor |
N-Channel Bit Programmable Peripherallnterface |
|
| 8 | INS8257 |
National Semiconductor |
Programmable DMA Controller |
|
| 9 | INS8259 |
National Semiconductor |
Programmable Interrupt Controller |
|
| 10 | INS8202 |
National Semiconductor |
Octal Buffers |
|
| 11 | INS8203 |
National Semiconductor |
Octal Buffers |
|
| 12 | INS8208 |
National Semiconductor |
8-Bit Bidirectional Transceiver |
|