BU4042B Datasheet Quad D Latch

Manufacturer: ROHM

Overview: Standard ICs Quad D latch BU4042B The BU4042B is a four-circuit D latch with a common clock line and separate data input terminals. When the polarity input is set to “H”, input (D) is presented to output (Q) as is, as long as the clock input is rising, and when the clock input falls, output (Q) holds input (D) at that point. While the clock input is falling, output (Q) does not change even if input (D) changes. Also, if the polarity input is set to “L”, input (D) is presented to output (Q) as is, as long as the clock input is at “L” level, and when the clock input goes to “H” level, latching takes place.

Datasheet Details

Part number	BU4042B
Manufacturer	ROHM
File Size	53.80 KB
Description	Quad D latch
Datasheet	BU4042B_Rohm.pdf

Key Features

1) Low power dissipation. 2) Wide range of operating power supply voltages. 3) High input impedance. 4) High fan-out. 5) Direct drive of 2 L-TTL inputs and 1LS-TTL input.
Block diagram Q4 1 16 VDD Q1 2 CL D Q Q Q1 3 CL D D1 4 Q Q 13 D3 14 D4 15 Q4.
Logic circuit diagram D1 (4) LATCH 1 (2) (3) Q1 Q1 D2 (7) LATCH 2 (10) Q2 (9) Q2 D3 (13) LATCH 3 (11) Q3 (12) Q3 CLOCK 5 CL D Q Q 12 Q3 D4 (14) CLOCK (5).

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