Datasheet > RS373

RS373

更新时间： 2024-09-14 17:15:39

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RS373 数据手册

RS373

Octal Transparent D-Type Latches With 3-State Outputs

1 FEATURES

3 DESCRIPTIONS

These 8-bit latches feature 3-state outputs designed

specifically for driving highly capacitive or relatively

low-impedance loads. They are particularly suitable

for implementing buffer registers, I/O ports,

bidirectional bus drivers, and working registers.

•

Wide Operating Voltage Range of 1.65V to

5.5 V

•

High-Current 3-State True Outputs Can Drive

Up To 15 LSTTL Loads

•

Low Power Consumption, 80µA Max I_CC

±6mA Output Drive at 4.5 V

Low Input Current of 1µA Max

Eight High-Current Latches in a Single

Package

The eight latches of the RS373 devices are

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 levels that were set up at the D inputs.

•

Full Parallel Access for Loading

Micro SIZE PACKAGES: TSSOP20, SOP20

An output-enable (OE) input places 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 pull up components.

2 APPLICATIONS

•

Network Switches

TV Set-top Boxes

Motor Drives

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 off.

Device Information ⁽¹⁾

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TSSOP20

SOP20

6.50mm×4.40mm

12.80mm×7.50mm

RS373

(1) For all available packages, see the orderable addendum at the

end of the data sheet.

REV A.1

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