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
MARKING
DIAGRAMS
SN74LS37xN
AWLYYWW
20
1
1
•
•
•
•
•
•
•
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
PDIP–20
N SUFFIX
CASE 738
20
LS37x
AWLYYWW
1
GUARANTEED OPERATING RANGES
Symbol
VCC
TA
IOH
IOL
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–20
DW SUFFIX
CASE 751D
74LS37x
AWLYWW
1
SOEIAJ–20
M SUFFIX
CASE 967
x
A
WL
YY
WW
1
= 3 or 4
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
©
Semiconductor Components Industries, LLC, 2001
1
October, 2001 – Rev. 8
Publication Order Number:
SN74LS373/D
ONSEMI [ ON SEMICONDUCTOR ]
