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.

Standard Product Includes

44474A 16-Bit Digital I/O Module

1 Connection Terminal

1 Certificate of Verification

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

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