Document
NLA16T245
16-Bit (Dual 8-Bit)
Configurable Dual-Supply
Translating Transceiver
with 3-State Outputs
The NLA16T245 is a 16−bit (dual 8−bit) configurable dual−supply translating bidirectional transceiver with 3−state outputs. The A− and B−ports are designed to track two different power supply rails, VCCA and VCCB respectively. Both supply rails are configurable from 0.9 V to 4.5 V allowing universal bidirectional voltage translation between the A− and B−ports.
The Direction inputs, 1DIR and 2DIR, determine the direction of data flow. 1DIR and 2DIR are independent of each other. When 1DIR or 2DIR is High, data flows from 1An to 1Bn or 2An to 2Bn respectively. When 1DIR or 2DIR is Low, data flows from 1Bn to 1An or 2Bn to 2An respectively. The Output Enable inputs, and , when High, disables both A− and B−ports by putting them in 3−state. The 1DIR, 2DIR, and signals are all designed to track VCCA.
Features
• Wide VCCA and VCCB Operating Range: 0.9 V to 4.5 V • Output Noise Reduction through Dynamic Output Impedance
Change
• Drive Capability: ±12 mA @ 3.0 V VCC • Input/Output Pins OVT to 5.5 V • Control Inputs Track VCCA • Non−preferential VCC Sequencing • Outputs at 3−State until Active VCC is reached • Power−Off Protection • Outputs Switch to 3−State with either VCC at GND • Pb−Free Packaging: TSSOP−48 • This is a Pb−Free Device
Typical Applications
• Mobile Phones, PDAs, Other Portable Devices
Important Information
• ESD Protection for All Pins:
Human Body Model (HBM) > 2000 V Machine Model (MM) > 200 V
http://onsemi.com
TSSOP−48 DT SUFFIX 1 CASE1201
MARKING DIAGRAM
NLA16T245G AWLYYWW
1
XXXXX = Specific Device Code A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package
ORDERING INFORMATION
Device
Package
Shipping†
NLA16T245DTR2G TSSOP−48 2500 / Tape &
(Pb−Free)
Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2013
September, 2013 − Rev. 0
1
Publication Order Number: NLA16T245/D
NLA16T245
Figure 1. Logic Diagram
Pin Names Pins VCCA VCCB GND
1OE, 2OE 1DIR, 2DIR
1An, 2An 1Bn, 2Bn
Figure 2. Pin Assignment
Description A−Port DC Power Supply B−Port DC Power Supply
Ground Output Enable Pins Direction Select Pins
A−Port I/O B−Port I/O
Function table nOE L L H
nDIR L H X
Operating Mode nB to nA nA to nB
nA and nB Ports at Hi−Z
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NLA16T245
MAXIMUM RATINGS
Symbol
Parameter
Value
Condition
Unit
VCCA, VCCB DC Supply Voltage
−0.5 to +5.5
V
VI Input Voltage
nOE, nDIR, nA
−0.5 to +4.6
VCCA = 0 V
V
−0.5 to +5.5
VCCA ≥ 0.9 V
nB −0.5 to +4.6
VCCB = 0 V
−0.5 to +5.5
VCCB ≥ 0.9 V
VO Output Voltage
(Power−Off Mode) nA, nB
−0.5 to +5.5
VCCA or VCCB = 0
V
(3−State Mode) nA, nB
−0.5 to +5.5
VCCA, VCCB ≥ 0.9 V
(Active Mode − High or Low State) nA −0.5 to VCCA + 0.5 VCCA, VCCB ≥ 0.9 V
(Active Mode − High or Low.