74AVCH16244
74AVCH16244 is 16-bit buffer/line driver manufactured by Nexperia.
description
The 74AVCH16244 is a 16-bit non-inverting buffer/line driver with 3-state outputs. The device can be used as four 4-bit buffers, two 8-bit buffers or one 16-bit buffer. The 3‑state outputs are controlled by the output enable inputs n OE. A HIGH on n OE causes the outputs to assume a high impedance OFF-state.
The 74AVCH16244 is designed to have an extremely fast propagation delay and a minimum amount of power consumption.
To ensure the high-impedance output state during power-up or power-down, n OE should be tied to VCC through a pull-up resistor (Live Insertion).
A dynamic controlled output (DCO) circuitry is implemented to support termination line drive during transient (see Figure 4).
The 74AVCH16244 has active bus-hold circuitry to hold unused or floating data inputs at a valid logic level. This feature eliminates the need for external pull-up or pull-down resistors.
2 Features and benefits
- Wide supply voltage range from 1.2 V to 3.6 V
- CMOS low power consumption
- Low inductance multiple VCC and GND pins for minimum noise and ground bounce
- Input/output tolerant up to 3.6 V
- Dynamic controlled output (DCO) circuit dynamically changes the output impedance, resulting in noise reduction without speed degradation
- Bus hold on all data inputs
- Supports Live Insertion
- plies with JEDEC standards:
- JESD8-7 (1.2 V to 1.95 V)
- JESD8-5 (1.8 V to 2.7 V)
- JESD8-1A (2.7 V to 3.6 V)
3 Ordering information
Table 1. Ordering information
Type number
Package
Temperature range
74AVCH16244DGG
- 40 °C to +85 °C
Name TSSOP48
Description plastic thin shrink small outline package; 48 leads; body width 6.1 mm
Version SOT362-1
Nexperia
4 Functional diagram
47 1A0
46 1A1
44 1A2
43 1A3
1 1OE
2 36 1Y0 3A0
3 35 1Y1 3A1
5 33 1Y2 3A2
6 32 1Y3 3A3 25 3OE
41...