The Keysight 44474A Digital I/O module provides 16 bi-directional data lines (bits) plus 4 lines used for control and handshaking. The 16 data lines offer TTL compatible input and open collector output. The 16 I/O lines or bits can be addressed individually (bit-by-bit), as two independent 8-bit ports, or as one 16-bit word. For instance, one port can be used for output operation, while the other for input. Each I/O line can sink current up to 0.125A from external devices.
- 125mA, up to 30V TTL
- 16-bit bidirectional data lines
- Plus 4 lines for control and handshaking
- Address 16 I/O lines individually, as to independent 8-bit words, or as one 16-bit word
- Screw terminal included