74LCXR162245 Datasheet PDF - Fairchild Semiconductor
| Part Number | 74LCXR162245 | |
| Description | Low Voltage 16-Bit Bidirectional Transceiver with 5V Tolerant Inputs/Outputs and 26W Series Resistors in the Outputs | |
| Manufacturers | Fairchild Semiconductor | |
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August 1998
Revised April 1999
74LCXR162245
Low Voltage 16-Bit Bidirectional Transceiver with 5V
Tolerant Inputs/Outputs and 26Ω Series Resistors in the
Outputs
General Description
The LCXR162245 contains sixteen non-inverting bidirec-
tional buffers with 3-STATE outputs and is intended for bus
oriented applications. The device is designed for low volt-
age (2.5V or 3.3V) VCC applications with capability of inter-
facing to a 5V signal environment. The device is byte
controlled. Each byte has separate control inputs which
could be shorted together for full 16-bit operation. The T/R
inputs determine the direction of data flow through the
device. The OE inputs disable both the A and B ports by
placing them in a high impedance state.
In addition, all A and B outputs include equivalent 26Ω
(nominal) series resistors to reduce overshoot and under-
shoot and are designed to sink/source up to 12 mA at
VCC = 3.0V.
The LCXR162245 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 A and B side outputs have equivalent 26Ω series
resistors
s 5.3 ns tPD max (VCC = 3.3V), 20 µA ICC max
s Power down high impedance inputs and outputs
s Supports live insertion/withdrawal (Note 1)
s Flow through pinout
s Implements patented noise/EMI reduction circuitry
s Latch-up performance exceeds 500 mA
s ESD performance:
Human body model > 2000V
Machine model > 200V
Note 1: To ensure the high-impedance state during power up or down OE
should be tied to VCC through a pull-up resistor: the minimum value or the
resistor is determined by the current-sourcing capability of the driver.
Ordering Code:
Order Number Package Number
Package Description
74LCXR162245MEA
MS48A
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300” Wide
74LCXR162245MTD
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “x” to the ordering code.
Logic Symbol
Pin Descriptions
Pin Names
OEn
T/Rn
A0–A15
B0–B15
Description
Output Enable Input
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
© 1999 Fairchild Semiconductor Corporation DS500052.prf
www.fairchildsemi.com
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AC LOADING and WAVEFORMS Generic for LCX Family
FIGURE 1. AC Test Circuit (CL includes probe and jig capacitance)
Test
tPLH, tPHL
tPZL, tPLZ
tPZH,tPHZ
Switch
Open
6V at VCC = 3.3 ± 0.3V
VCC x 2 at VCC = 2.5 ± 0.2V
GND
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
5 www.fairchildsemi.com
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for 74LCXR162245 electronic component. |
| Information | Total 8 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ 74LCXR162245.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| 74LCXR162245 | The function is Low Voltage 16-Bit Bidirectional Transceiver with 5V Tolerant Inputs/Outputs and 26W Series Resistors in the Outputs. Fairchild Semiconductor | |
| 74LCXR162245MEA | The function is Low Voltage 16-Bit Bidirectional Transceiver with 5V Tolerant Inputs/Outputs and 26W Series Resistors in the Outputs. Fairchild Semiconductor | |
| 74LCXR162245MTD | The function is Low Voltage 16-Bit Bidirectional Transceiver with 5V Tolerant Inputs/Outputs and 26W Series Resistors in the Outputs. Fairchild Semiconductor | |
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