Description
The UM6522 Versatile Interface Adapter (VIA) is a very flexible I/O control device.
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.
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.
UM6522A Datasheet
