UM6521 |
Part Number | UM6521 |
Manufacturer | UMC |
Description |
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Features |
• Extended performance version of UM6520 • Single +5V power supply • Two 8-bit bi-directional I/O ports with individual data direction control • CMOS-compatible peripheral port A lines • Automatic "handshake" control of data transfers • Programmable interrupt capability • Automatic initialization on power up • 1 and 2 MHz versions • Direct replacement for Motorola MC6821 General Descr~ption The UM6521/A Peripheral Interface Adapter (PIA) is designed to provide a broad range of peripheral control to microcomputer systems. It is functionally compatible with the UM6520, but with more drive capa... |
Document |
UM6521 Data Sheet
PDF 525.35KB |
Similar Datasheet
No. | Parte # | Fabricante | Descripción | Hoja de Datos |
---|---|---|---|---|
1 | UM6520 |
UMC |
Peripheral Interface Adapter | |
2 | UM6520A |
UMC |
Peripheral Interface Adapter | |
3 | UM6521A |
UMC |
Peripheral Interface Adapter | |
4 | UM6522 |
UMC |
VERSATILE INTERFACE ADAPTER | |
5 | UM6522A |
UMC |
VERSATILE INTERFACE ADAPTER | |
6 | UM6502 |
UMC |
(UM6507) 8 Bit Microprocessor |