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74LCX162244MTDのメーカーはFairchild Semiconductorです、この部品の機能は「Low Voltage 16-Bit Buffer/Line Driver with 26 Series Resistors in Outputs」です。 |
部品番号 | 74LCX162244MTD |
| |
部品説明 | Low Voltage 16-Bit Buffer/Line Driver with 26 Series Resistors in Outputs | ||
メーカ | Fairchild Semiconductor | ||
ロゴ | |||
このページの下部にプレビューと74LCX162244MTDダウンロード(pdfファイル)リンクがあります。 Total 10 pages
September 2000
Revised August 2001
74LCX162244
Low Voltage 16-Bit Buffer/Line Driver
with 26Ω Series Resistors in Outputs
General Description
The LCX162244 contains sixteen non-inverting buffers with
3-STATE outputs designed to be employed as a memory
and address driver, clock driver, or bus oriented transmit-
ter/receiver. The device is nibble controlled. Each nibble
has separate 3-STATE control inputs which can be shorted
together for full 16-bit operation.
The LCX162244 is designed for low voltage (2.5V or 3.3V)
VCC applications with capability of interfacing to a 5V signal
environment.
In addition, the outputs include equivalent 26Ω (nominal)
series resistors to reduce overshoot and undershoot and
are designed to sink/source up to 12 mA at VCC = 3.0V.
The LCX162244 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing CMOS low power dissipation.
Features
s 5V tolerant inputs and outputs
s 2.3V–3.6V VCC specifications provided
s Outputs include equivalent series resistance of 26Ω to
make external termination resistors unnecessary and
reduce overshoot and undershoot
s 5.3 ns tPD max (VCC = 3.0V), 20 µA ICC max
s Power down high impedance inputs and outputs
s ±12 mA output drive (VCC = 3.0V)
s Implements patented noise/EMI reduction circuitry
s Latch-up performance exceeds 500 mA
s ESD performance:
Human body model > 2000V
Machine model > 200V
s Also packaged in plastic Fine-Pitch Ball Grid Array
(FBGA) (Preliminary)
Ordering Code:
Order Number Package Number
Package Description
74LCX162244GX
(Note 1)
BGA54A
54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
(Preliminary) [TAPE and REEL]
74LCX162244MEA
(Note 2)
MS48A
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300" Wide
74LCX162244MTD
(Note 2)
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Note 1: BGA package available in Tape and Reel only.
Note 2: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
© 2001 Fairchild Semiconductor Corporation DS500471
www.fairchildsemi.com
1 Page Functional Description
The LCX162244 contains sixteen non-inverting buffers with
3-STATE standard outputs. The device is designed with
26Ω series resistors in the outputs. This design reduces
line noise in applications such as memory address drivers,
clock drivers and bus transceiver/transmitters. The device
is nibble (4 bits) controlled with each nibble functioning
identically, but independent of the other. The control pins
Logic Diagram
can be shorted together to obtain full 16-bit operation. The
3-STATE outputs are controlled by an Output Enable (OEn)
input for each nibble. When OEn is LOW, the outputs are in
2-state mode. When OEn is HIGH, the outputs are in the
high impedance mode, but this does not interfere with
entering new data into the inputs.
3 www.fairchildsemi.com
3Pages AC LOADING and WAVEFORMS Generic for LCX Family
FIGURE 1. AC Test Circuit (CL includes probe and jig capacitance)
VI
6V for VCC = 3.3V, 2.7V
VCC * 2 for VCC = 2.5V
CL
50 pF
30 pF
Waveform for Inverting and Non-Inverting Functions
3-STATE Output High Enable and
Disable Times for Logic
Propagation Delay. Pulse Width and trec Waveforms
Setup Time, Hold Time and Recovery Time for Logic
3-STATE Output Low Enable and
Disable Times for Logic
trise and tfall
FIGURE 2. Waveforms
(Input Characteristics; f =1MHz, tr = tf = 3ns)
Symbol
Vmi
Vmo
Vx
Vy
3.3V ± 0.3V
1.5V
1.5V
VOL + 0.3V
VOH − 0.3V
VCC
2.7V
1.5V
1.5V
VOL + 0.3V
VOH − 0.3V
2.5V ± 0.2V
VCC/2
VCC/2
VOL + 0.15V
VOH − 0.15V
www.fairchildsemi.com
6
6 Page | |||
ページ | 合計 : 10 ページ | ||
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部品番号 | 部品説明 | メーカ |
74LCX162244MTD | Low Voltage 16-Bit Buffer/Line Driver with 26 Series Resistors in Outputs | Fairchild Semiconductor |