UMC UM6522A
The UM6522 Versatile Interface Adapter (VIA) is a very flexible I/O control device. Each line can be programmed as either| Part No. | UM6522A |
|---|---|
| Datasheet | UM6522A Download |
| Manufacturer |  UMC |
| Description | VERSATILE INTERFACE ADAPTER |
| Buy | Stock & Price |
FEATURES
● Two 8-bit bidirectional I/O ports● Two 16-bit programmable timer/counters
● Serial data port
● Single +5V power supply
● TTL compatible expect Port A
● CMOS compatible peripheral Port A lines
● Expanded "handshake" capability allows positive control of data transfers between processor and peripheral devices
● Latched output and input registers
● 1 MHz and 2 MHz operation
GENERAL DESCRIPTION
In addition, this device contains a pair of very powerful 16-bit interval timers, a serialto-parallel/parallel-to-serial shift register and input data latching on the peripheral ports. Expanded handshaking capability allows control of bi-directional data transfers between VIA's in multiple processor systems. Control of peripheral devices is handled primarily through two 8-bit bi-directional ports. Each line can be programmed as either
