Quadruple Flip-Flop Type B204

Summary The B204 is a B-series module containing four bits of unbuffered flip-flop memory. Each flip-flop consists of two B105-type inverters, two 10-ma clamped loads, a shared clear input, and an indicator driver resistor.

Key operational details include:

• Inputs: Flip-flops can be individually set or cleared by grounding the respective output. A common clear input is available for all four flip-flops, requiring a negative 40-nsec pulse.
• Outputs: Each flip-flop output can drive 6 ma at -3v. The module includes 1500-ohm resistor outputs designed to drive control panel indicators without excessive loading.
• Power Requirements: The module operates on +10V (at pin A) and -15V (at pin B) with a current draw of 94 ma.