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nexperia

74ALVCH32973EC Datasheet Preview

74ALVCH32973EC Datasheet

16-bit bus transceiver and transparant D-type latch

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74ALVCH32973
16-bit bus transceiver and transparant D-type latch with 8
independent buffers
Rev. 3 — 17 January 2013
Product data sheet
1. General description
The 74ALVCH32973 is a 16-bit bus transceiver and transparent D-type latch with 8
independent buffers with bus hold inputs and 3-state outputs. It features direction (1DIR,
2DIR), latch enable (1LOE, 2LOE), transceiver output enable (1TOE, 2TOE) and latch
enable (1LE, 2LE) control inputs; four 8-bit transceiver ports (1An, 2An & 1Bn, 2Bn); two
8-bit D-type latch output ports (1Qn, 2Qn) and an 8-bit buffer with data inputs Dn and
outputs Yn. The configuration of the control pins allows the device to be used as one 8-bit
buffer, two 8-bit transceivers, and two 8-bit latches or one 8-bit buffer, one 16-bit
transceiver and one 16-bit latch.
The 8-bit buffer functions independently of the control inputs. The direction of data
transmission between A and B is controlled by nDIR and when nTOE is set HIGH the A
and B ports will assume a HIGH-impedance OFF-state, they will be effectively isolated.
When nLE is HIGH, data at the A inputs enter the latches. In this condition the latches are
transparent, a Q output will change each time its corresponding A-input changes. When
nLE is LOW the latches store the information that was present at the inputs a set-up time
preceding the HIGH-to-LOW transition of nLE. A HIGH on nLOE causes the Q outputs to
assume a high-impedance OFF-state. Operation of the nLOE input does not affect the
state of the latches.
2. Features and benefits
Wide supply voltage range from 1.2 V to 3.6 V
Complies with JEDEC standard JESD8-B
CMOS low power consumption
Direct interface with TTL levels
All data inputs have bus hold
Output drive capability 50 transmission lines at 85 C
Current drive 24 mA at VCC = 3.0 V




nexperia

74ALVCH32973EC Datasheet Preview

74ALVCH32973EC Datasheet

16-bit bus transceiver and transparant D-type latch

No Preview Available !

Nexperia
74ALVCH32973
16-bit bus transceiver and transparant D-type latch; 8 buffers
3. Ordering information
Table 1. Ordering information
Type number
Temperature range Package
Name
74ALVCH32973EC 40 C to +85 C LFBGA96
Description
plastic low profile fine-pitch ball grid array
package; 96 balls; body 13.5 5.5 1.05 mm
4. Functional diagram
Version
SOT536-1
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Fig 2. Bus hold circuit
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mna705
74ALVCH32973
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 17 January 2013
© Nexperia B.V. 2017. All rights reserved
2 of 17


Part Number 74ALVCH32973EC
Description 16-bit bus transceiver and transparant D-type latch
Maker nexperia
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