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74ALVCH162373GRE4-SN74ALVCH162373DL-SN74ALVCH162373GR
16-Bit Transparent D-Type Latch with 3-State Outputs 48-SSOP -40 to 85
DESCRIPTION/ORDERING INFORMATION
(TOP VIEW)1OE
1Q1
1Q7
1Q8
2Q1
2Q2
GND
2Q3
2Q4
VCC
2Q5
2Q6
GND
2Q7
2Q8
2OE
1LE
1D1
1D7
1D8
2D1
2D2
GND
2D3
2D4
VCC
2D5
2D6
GND
2D7
2D8
2LE
The outputs, are designedto sinkupto12 mA, equivalent 26-Ω resistorsto reduce overshoot and
SN74ALVCH162373
16-BIT TRANSPARENT D-TYPE LATCH Member the Texas Instruments Widebus™
Family Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors 200-V Model (A115-A)This 16-bit D-type latchis designed for
1.65-Vto 3.6-V VCC operation.
The SN74ALVCH162373is particularly suitable for
implementing buffer registers, I/O ports, bidirectional
bus drivers, working registers. This device can used as two 8-bit latches or one 16-bit latch.
When the (LE) inputis high, theQ
outputs follow the data (D) inputs. When LEis taken
low, theQ are latchedat the levels setupat
theD inputs. buffered (OE) input can be usedto
place the eight outputsin eithera normal logic state
(highor low levels)or the high-impedance state. the high-impedance state, the outputs neither load
nor drive the bus lines significantly. The
high-impedance state and the increased drive provide
the capabilityto drive bus lines without need for
interfaceor components. OE does not affect
internal operations of the latch. Old data can be
retained or data can be entered while the
outputs are the high-impedance state.
undershoot.
ORDERING PACKAGE(1) ORDERABLE PART NUMBER TOP-SIDE MARKINGTube SN74ALVCH162373DLSSOP-DL ALVCH162373Tape and reel SN74ALVCH162373LR TSSOP- DGG Tape and reel SN74ALVCH162373GR ALVCH162373
VFBGA- GQL Tape and reel SN74ALVCH162373KR VH2373 packing quantities, and PCB design guidelinesare availableat
www.ti.com/sc/package.
