1999 Nov 15 2
Philips Semiconductors Product specification
16-bit buffer/line driver; 3-state
(3.6 V tolerant)
74AVC16244
FEATURES
• Wide supply voltage range from 1.2 to 3.6 V
• Complies with JEDEC standard no. 8-1A/5/7
• CMOS low power consumption
• Input/output tolerant up to 3.6 V
• Dynamic Controlled Output (DCO) circuit dynamically
changes output impedance, resulting in noise reduction
without speed degradation
• Low inductance multiple power and ground pins for
minimum noise and ground bounce
• Power off disables 74AVC16244 outputs, permitting live
insertion.
DESCRIPTION
The 74AVC16244 is a 16-bit non-inverting buffer/line
driver with 3-state outputs. This 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 nOE. A HIGH level on input nOE causes the outputs
to assume a high-impedance OFF-state.
This product 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, input nOE should be tied to V
CC
through a pull-up resistor (live insertion).
A DCO circuitry is implemented to support termination line
drive during transient (see Figs 1 and 2).
handbook, halfpage
012 4
0
−200
−300
−100
MNA506
3
V
OH
(V)
I
OH
(mA)
1.8 V
2.5 V
3.3 V
Fig.1 Output current as a function of output voltage. Fig.2 Output current as a function of output voltage.
handbook, halfpage
012 4
300
100
0
200
MNA507
3
V
OL
(V)
I
OL
(mA)
1.8 V
2.5 V
3.3 V
