My Inquiry
My Account
Diodes Incorporated PI74LPT16245AV
- Part No.:
- PI74LPT16245AV
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
PI74LPT16245AV.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,753
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PI74LPT16245AV from Pericom Semiconductor is a 16-bit bidirectional voltage-level translating transceiver supporting asynchronous two-way data bus communication between 3.3V and 5.0V domains. It features dual 8-bit or unified 16-bit operation via independent DIR/OE controls, 24 mA balanced output drive, and industrial temperature range (–40°C to +85°C). Used in mixed-voltage system interconnects such as CPU-to-peripheral bridges and FPGA I/O expansion.
For engineers reviewing the PI74LPT16245AV datasheet, PI74LPT16245AV pinout, PI74LPT16245AV application, or PI74LPT16245AV equivalent, key selection criteria include 3.3V/5V bidirectional translation capability, low ground bounce outputs, hysteresis on all inputs, and compatibility with LCX™/LVT™ logic families.
Technical Context
The PI74LPT16245AV implements dual independent 8-bit transceiver blocks (1A/1B and 2A/2B), each controlled by dedicated DIR and OE pins. Direction control is synchronous with data flow: xDIR = LOW enables B→A transfer; xDIR = HIGH enables A→B transfer.
Its 5V-tolerant I/O architecture allows 3.3V VCC operation while accepting 5V inputs and driving 5V buses directly-no external level-shifting components required. Hysteresis (150 mV) on all inputs improves noise immunity in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Range | 2.7V to 3.6V - Enables stable operation in 3.3V systems with ±0.3V tolerance. |
| Output Drive | ±24 mA - Sufficient to drive 50 Ω transmission lines or multiple LVT/LCX loads without buffering. |
| Propagation Delay | 1.5–4.1 ns (LPT16245C grade) - Supports >200 MHz data rates in point-to-point bus applications. |
| Input Hysteresis | 150 mV - Reduces susceptibility to slow-rising or noisy control signals (e.g., long PCB traces). |
| IOH/VOL @ 24 mA | VOH ≥ 2.0V, VOL ≤ 0.5V - Ensures valid logic levels under full load, compatible with 3.3V LVTTL thresholds. |
| Quiescent ICC | 0.1–10 μA - Near-zero static power enables use in always-on subsystems without thermal penalty. |
| ESD Rating | ±2 kV HBM - Meets industrial IEC 61000-4-2 Level 2 requirements for board-level robustness. |
Pinout & Package
PI74LPT16245AV is packaged in a 48-pin 300-mil wide plastic SSOP (Package Code V), with distributed VCC/GND pins and multiple center GND pads to minimize switching noise and ground bounce.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Input | Active-HIGH logic selects A→B data flow; LOW enables B→A - supports independent bus arbitration per 8-bit segment. |
| 1OE, 2OE | Output Enable Input | Active-LOW control places corresponding A/B ports in high-impedance state - enables bus sharing and hot-swap isolation. |
| 1A0–1A7, 2A0–2A7 | Side A I/O Pins | 3.3V-side bidirectional interface - tolerate 5V inputs and drive 3.3V or 5V buses directly. |
| 1B0–1B7, 2B0–2B7 | Side B I/O Pins | 5V-side bidirectional interface - compatible with legacy 5V TTL/LVT logic without level shifters. |
| VCC (Pins 7,18,31,42) | Power Supply | 3.3V supply only - multiple VCC pins reduce IR drop and improve transient response during simultaneous switching. |
| GND (Pins 4,10,15,21,34,39,45) | Ground Reference | Seven dedicated GND pins provide low-inductance return paths - critical for signal integrity at >100 Mbps. |
Key Features
| Feature | Design Value |
|---|---|
| 5V-Tolerant Mixed-Signal Operation | Accepts 0–5.5V inputs and drives 5V buses from 3.3V supply - eliminates discrete level shifters in mixed-voltage designs. |
| Balanced ±24 mA Output Drive | Equal sink/source strength ensures clean edges on both rising/falling transitions - reduces timing skew across data bus. |
| Low Ground Bounce Outputs | Distributed GND pins and optimized output stage suppress ΔI/Δt-induced noise - maintains signal integrity in dense PCB layouts. |
| Hysteresis on All Inputs | 150 mV input threshold margin rejects sub-10 ns noise spikes - improves reliability in electrically noisy industrial enclosures. |
| Pb-Free & Green Packaging | RoHS-compliant SSOP (V) package with halogen-free molding compound - meets IPC-1752A and EU REACH requirements. |
Applications
| Industrial PLC Backplane Interconnect | FPGA-to-Memory Interface Translation |
|---|---|
Use Scenario: Connecting 3.3V FPGA I/O banks to legacy 5V SRAM or EPROM modules on a programmable logic controller backplane. IC Role / Device Role / Timing Role: Bidirectional level translator enabling synchronous read/write cycles between mismatched voltage domains. Use Value: Eliminates need for eight discrete 1-bit translators; 16-bit parallel operation reduces trace count and layout complexity. | Use Scenario: Bridging a 3.3V SoC's external memory controller to 5V DDR1 SDRAM modules in embedded test equipment. IC Role / Device Role / Timing Role: Voltage-translating transceiver managing address/data/control lines with matched propagation delay across all bits. Use Value: 4.1 ns max tPLH ensures setup/hold timing margins are preserved at 100 MHz bus clock rates. |
| Automotive Body Control Module Bus Isolation | Medical Imaging Data Acquisition Interface |
Use Scenario: Isolating 3.3V microcontroller UART and SPI peripherals from 5V sensor cluster interfaces in body control units. IC Role / Device Role / Timing Role: Controlled-direction transceiver enabling firmware-upgrade-safe bidirectional communication with fail-safe OE gating. Use Value: Independent 1OE/2OE pins allow selective shutdown of sensor or actuator channels without disrupting core MCU operation. | Use Scenario: Interfacing a 3.3V ADC ASIC to 5V analog front-end signal conditioning circuitry in portable ultrasound systems. IC Role / Device Role / Timing Role: Low-noise bidirectional data path with hysteresis-filtered control lines to reject EMI from high-voltage pulsed transducers. Use Value: Seven GND pins and low ground bounce ensure <10 mV common-mode noise on 12-bit parallel digital outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16T245DGGR | 3.3V-only I/O; no 5V-tolerant inputs - requires external clamping for 5V bus connection. | Limited to 3.3V↔3.3V or 3.3V↔lower-V applications; not suitable for direct 5V bus driving. | Select when interfacing only to 3.3V or lower-voltage peripherals and cost is primary constraint. |
| TXB0108PWR | Auto-direction sensing; no DIR pin - relies on bus activity for direction detection; higher propagation delay (up to 12 ns). | Suitable for I²C/SPI but not for high-speed parallel buses requiring deterministic direction control. | Select for low-pin-count, low-speed serial interfaces where DIR pin overhead must be avoided. |
Compared with SN74LVC16T245DGGR and TXB0108PWR, the PI74LPT16245AV uniquely supports true 5V-bus driving from 3.3V supply with deterministic DIR control and sub-5 ns propagation - essential for high-speed parallel memory and control bus applications.
Availability
PI74LPT16245AV is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA memory interfaces, automotive body control modules, and medical imaging data acquisition systems requiring stable component supply and long-term lifecycle support.
Supply support for PI74LPT16245AV includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Pericom Semiconductor (now part of Diodes Incorporated) specialized in high-speed interface and signal-integrity solutions for computing, communications, and industrial markets before its 2016 acquisition.
The PI74LPT16245AV belongs to Pericom's LPT (Low-Power Transceiver) family, engineered specifically for noise-immune, mixed-voltage bus bridging in harsh industrial and automotive environments.
FAQ
Can PI74LPT16245AV operate with a 2.5V supply?
No. The device is specified for VCC = 2.7V to 3.6V only. At 2.5V, VOH falls below 2.0V and VIH minimum drops below 2.0V, violating LVTTL logic thresholds. Operation outside this range risks unreliable switching and increased ICC.
What is the maximum data rate supported by PI74LPT16245AV?
Based on 4.1 ns max propagation delay (LPT16245C grade) and 0.5 ns max output skew, the device supports reliable operation up to 200 Mbps in point-to-point configurations. For multi-drop buses, derate to 125 Mbps to maintain timing margins under capacitive loading.
Does PI74LPT16245AV require external pull-up resistors on control pins?
No. All control inputs (xDIR, xOE) have built-in hysteresis and CMOS-compatible thresholds. Pull-ups are unnecessary unless system-level noise exceeds 150 mV - in which case 10 kΩ pull-ups to VCC are recommended per JEDEC JESD8-12.
How does PI74LPT16245AV handle bus contention during direction switching?
The device uses break-before-make logic internally: when xDIR changes state, outputs enter high-Z for ≥1.5 ns (tPZL/tPHZ min) before new direction activates. This prevents momentary short-circuits between A and B buses during transition.
PI74LPT16245AV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74LPT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
PI74LPT16245AV FAQ
1.How can I place an order for PI74LPT16245AV through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74LPT16245AV on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PI74LPT16245AV reliable?
The price and inventory of PI74LPT16245AV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74LPT16245AV is usually 5 days.
3.What payment methods are accepted for PI74LPT16245AV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74LPT16245AV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI74LPT16245AV?
PI74LPT16245AV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74LPT16245AV order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PI74LPT16245AV?
For technical support, including PI74LPT16245AV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74LPT16245AV requirements.
6.How does Aetrix verify that PI74LPT16245AV is sourced from the original manufacturer or authorized distributors?
All PI74LPT16245AV products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PI74LPT16245AV meets industry standards.
7.What is the process for return or replacement of PI74LPT16245AV?
All PI74LPT16245AV units undergo pre-shipment inspection (PSI). If there is an issue with PI74LPT16245AV, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PI74LPT16245AV part is unused and in its original packaging.
Return procedure for PI74LPT16245AV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PI74LPT16245AV Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
