74173 IC 4-Bit
D-Type Registers
With 3-State Outputs DIP-16
The 74173 IC 4-Bit D-Type Register with 3-State Outputs, designated as SN74LS173N and manufactured by XBLW, is a high-performance monolithic integrated circuit comprising four D-type flip-flops with totem-pole 3-state outputs, optimized for direct interfacing with system buses in digital logic applications. This device supports two operational modesparallel load and holdcontrolled by gated enable inputs (G1 and G2), allowing data entry at the D inputs to be latched on the positive clock transition when both enables are low, or maintaining the current state when high.
Features:-
3-State Outputs Interface Directly With System Bus
Gated Output-Control LInes for Enabling or Disabling the Outputs
Fully Independent Clock Virtually Eliminates Restrictions for Operating in One of Two Modes: Parallel Load Do Nothing (Hold)
For applications such as Bus Buffer Registers
Specifications:
Parameter
Value
Category
Integrated Circuits (ICs)/Logic/Flip Flops
Manufacturer
XBLW
Package
PDIP-16
Voltage Supply
4.75V~5.25V
Clock Frequency
50MHz
Propagation Delay
30ns@5V,45pF
Operating Temperature
0~+70
Current Output High(IOH)
2.6mA
Function
Reset
Series
74LS Series
Type
D-Type
Current Output Low(IOL)
24mA
Number of Bits per Element
4
Number of Elements
1
Setup Time
17ns
Hold Time
3ns
Quiescent Current
24mA
Output Type
Tri-State
Trigger Type
Rising Edge
Pin Configuration:
Pin No
Pin Name
Description
1
M
Active Low Output Enable Input 1
2
N
Active Low Output Enable Input 2
3
1Q
Output Pin 1Q
4
2Q
Output Pin 2Q
5
3Q
Output Pin 3Q
6
4Q
Output Pin 4Q
7
Clock
Clock Pulse Input
8
GND
Ground Pin
9
G1
Active low Input Enable Pin 1
10
G2
Active low Input Enable Pin 2
11
4D
Data Input 4D
12
3D
Data Input 3D
13
2D
Data Input 2D
14
1D
Data Input 1D
15
Clear
Master Reset Input
16
V
CC
Chip Supply Voltage
Footprint:
Applications:
Bus Buffer Registers
Cascading applications
High logic level controller
Datasheet:
SN74LS173N
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