74LVC373A Datasheet, PDF (1/10 Pages) NXP Semiconductors – Octal D-type transparent latch with 5-volt tolerant inputs/outputs 3-State

74LVC373A
OCTAL TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS
Description
The 74LVC373A provides eight transparent D-type latches. While the
latch-enable (LE) input is high, the Q outputs follow the data (D)
inputs. When LE is taken low, the Q outputs are latched at the logic
levels set up at the D inputs. A buffered output-enable (OE) input can
be used to place the eight outputs in either a normal logic state (high
or low logic levels) or the high-impedance state. In the high-impedance
state, the outputs neither load nor drive the bus lines significantly. The
high-impedance state and increased drive provide the capability to
drive bus lines without interface or pullup components. OE does not
affect the internal operations of the latches. Old data can be retained
or new data can be entered while the outputs are in the high-
impedance state.
The device is designed for operation with a power supply range of
1.65V to 3.6V.
The inputs are tolerant to 5.5V allowing this device to be used in a
mixed voltage environment. The device is fully specified for partial
power down applications using I_OFF. The I_OFF circuitry disables the
output preventing damaging current backflow when the device is
powered down.
Features
• Supply Voltage Range from 1.65V to 3.6V
• Sinks or Sources 24mA at V_CC = 3V
• CMOS Low Power Consumption
• I_OFF Supports Partial Power Down Operation
• Inputs or Outputs Accept Up to 5.5V
• Inputs Can Be Driven by 3.3V or 5V Allowing for Mixed Voltage
Applications
• Schmitt Trigger Action at All Inputs
• Typical V_OLP (Quiet Output Ground Bounce) Less Than 0.8V with
V_CC = 3.3V and T_A = +25°C
• Typical V_OHV (Quiet Output dynamic VOH) Greater than 2.0V with
V_CC = 3.3V and T_A = +25°C
• ESD Protection Tested per JESD 22
ƒ Exceeds 200-V Machine Model (A115)
ƒ Exceeds 2000-V Human Body Model (A114)
ƒ Exceeds 1000-V Charged Device Model (C101)
• Latch-Up Exceeds 250mA per JESD 78, Class II
• All devices are:
ƒ Totally Lead-Free & Fully RoHS compliant (Notes 1 & 2)
ƒ Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
Applications
• General Purpose Logic
• Bus Driving
• Power Down Signal Isolation
• Wide array of products such as:
ƒ PCs, Notebooks, Netbooks, Ultrabooks
ƒ Networking Computer Peripherals, Hard Drives, CD/DVD
ROM
ƒ TV, DVD, DVR, Set Top Box
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen and Antimony free,
"Green" and Lead-Free.
3. Halogen and Antimony free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
74LVC373A
Document number: DS35893 Rev. 1 - 2
1 of 10
www.diodes.com
June 2014
© Diodes Incorporated