SN74LS373 SN74LS374
Octal Transparent Latch
with 3-State Outputs;
Octal D-Type Flip-Flop
with 3-State Output
The SN74LS373 consists of eight latches with 3-state outputs for
bus organized system applications. The flip-flops appear transparent
to the data (data changes asynchronously) when Latch Enable (LE) is
HIGH. When LE is LOW, the data that meets the setup times is
latched. Data appears on the bus when the Output Enable (OE) is
LOW. When OE is HIGH the bus output is in the high impedance state.
The SN74LS374 is a high-speed, low-power Octal D-type Flip-Flop
featuring separate D-type inputs for each flip-flop and 3-state outputs
for bus oriented applications. A buffered Clock (CP) and Output
Enable (OE) is common to all flip-flops. The SN74LS374 is
manufactured using advanced Low Power Schottky technology and is
compatible with all ON Semiconductor TTL families.
http://onsemi.com
LOW
POWER
SCHOTTKY
•
•
•
•
•
•
•
Eight Latches in a Single Package
3-State Outputs for Bus Interfacing
Hysteresis on Latch Enable
Edge-Triggered D-Type Inputs
Buffered Positive Edge-Triggered Clock
Hysteresis on Clock Input to Improve Noise Margin
Input Clamp Diodes Limit High Speed Termination Effects
20
1
PLASTIC
N SUFFIX
CASE 738
GUARANTEED OPERATING RANGES
Symbol
V
CC
T
A
I
OH
I
OL
Parameter
Supply Voltage
Operating Ambient
Temperature Range
Output Current – High
Output Current – Low
Min
4.75
0
Typ
5.0
25
Max
5.25
70
– 2.6
24
Unit
V
°C
mA
mA
20
1
SOIC
DW SUFFIX
CASE 751D
ORDERING INFORMATION
Device
SN74LS373N
SN74LS373DW
SN74LS374N
SN74LS374DW
Package
16 Pin DIP
16 Pin
16 Pin DIP
16 Pin
Shipping
1440 Units/Box
2500/Tape & Reel
1440 Units/Box
2500/Tape & Reel
©
Semiconductor Components Industries, LLC, 1999
1
December, 1999 – Rev. 6
Publication Order Number:
SN74LS373/D