3-STATE Octal D-Type Flip-Flop
MM74C373 • MM74C374 3-STATE Octal D-Type Latch • 3-STATE Octal D-Type Flip-Flop
October 1987 Revised January 2004
MM74...
Description
MM74C373 MM74C374 3-STATE Octal D-Type Latch 3-STATE Octal D-Type Flip-Flop
October 1987 Revised January 2004
MM74C373 MM74C374 3-STATE Octal D-Type Latch 3-STATE Octal D-Type Flip-Flop
General Description
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The MM74C373 and MM74C374 are integrated, complementary MOS (CMOS), 8-bit storage elements with 3STATE outputs. These outputs have been specially designed to drive high capacitive loads, such as one might find when driving a bus, and to have a fan out of 1 when driving standard TTL. When a high logic level is applied to the OUTPUT DISABLE input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the storage elements. The MM74C373 is an 8-bit latch. When LATCH ENABLE is high, the Q outputs will follow the D inputs. When LATCH ENABLE goes low, data at the D inputs, which meets the set-up and hold time requirements, will be retained at the outputs until LATCH ENABLE returns high again. The MM74C374 is an 8-bit, D-type, positive-edge triggered flip-flop. Data at the D inputs, meeting the set-up and hold time requirements, is transferred to the Q outputs on positive-going transitions of the CLOCK input. Both the MM74C373 and the MM74C374 are being assembled in 20-pin dual-in-line packages with 0.300” pin centers.
Features
s Wide supply voltage range: s Low power consumption s TTL compatibility: Fan out of 1driving standard TTL s Bus driving capability s 3-STATE outputs s Eight stora...
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