PARALLEL D REGISTER
www.DataSheet4U.com
MC74AC378 MC74ACT378 Parallel D Register with Enable
The MC74AC378/74ACT378 is a 6-bit register wit...
Description
www.DataSheet4U.com
MC74AC378 MC74ACT378 Parallel D Register with Enable
The MC74AC378/74ACT378 is a 6-bit register with a buffered common Enable. This device is similar to the MC74AC174/74ACT174, but with common Enable rather than common Master Reset. 6-Bit High-Speed Parallel Register Positive Edge-Triggered D-Type Inputs Fully Buffered Common Clock and Enable Inputs Outputs Source/Sink 24 mA ′ACT378 Has TTL Compatible Inputs PARALLEL D REGISTER WITH ENABLE
VCC 16
Q5 15
D5 14
D4 13
Q4 12
D3 11
Q3 10
CP 9
N SUFFIX CASE 648-08 PLASTIC
PIN NAMES E D0–D5 CP Q0–Q5 Enable Input Data Inputs Clock Pulse Input Outputs D SUFFIX CASE 751B-05 PLASTIC
1 E
2 Q0
3 D0
4 D1
5 Q1
6 D2
7 Q2
8 GND
TRUTH TABLE
Inputs E H L L CP Dn X H L Outputs Qn No Change H L
LOGIC SYMBOL
E D0 D1 D2 D3 D4 D5 CP Q0 Q1 Q2 Q3 Q4 Q5
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial = LOW-to-HIGH Transition
FACT DATA
DataSheet 4 U .com
5-1
www.DataSheet4U.com
MC74AC378 MC74ACT378
FUNCTIONAL DESCRIPTION
The MC74AC378/74ACT378 consists of six edgetriggered D-type flip-flops with individual D inputs and Q outputs. The Clock (CP) and Enable (E) inputs are common to all flip-flops. When the E input is LOW, new data is entered into the register on the LOW-to-HIGH transition of the CP input. When the E input is HIGH, the register will retain the present data independent of the CP input.
LOGIC DIAGRAM
D0 CP D1 D2 D3 D4 D5
CP E
D E Q
CP
D E Q
CP
D E Q
CP
D E Q
CP
D...
Similar Datasheet