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Octal D-Type Transparent Latches With 3-State Outputs

NEW - Custom reel may be available
Inventory: 48,126
Download data sheet for the SN74ACT373
  |   View additional information for the SN74ACT373

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-1-260C-UNLIM
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View

Packaging information

Package | Pins Operating temperature range (°C) Package qty | Carrier:
TSSOP (PW) | 20 I (-40 to 85) 2,000 | LARGE T&R
Custom reel may be available
View more packaging information

Features for the  SN74ACT373

  • 4.5-V to 5.5-V VCC Operation
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 10 ns at 5 V
  • Inputs Are TTL-Voltage Compatible

Description for the SN74ACT373

These 8-bit latches feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. The devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight latches are D-type transparent latches. When 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 in bus-organized systems without need for 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.

To ensure the high-impedance state during power up or power down, (OE)\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.


Qty Price(USD)
1-99 $0.751
100-249 $0.578
250-999 $0.425
1,000+ $0.304

Additional package qty | carrier options

Package qty | Carrier 70 | TUBE
Inventory 1,050
Qty | Price (USD) 1ku | $0.331 1-99 $0.818 100-249 $0.629 250-999 $0.463 1,000+ $0.331