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Diodes Incorporated PI74FCT162373ATV
- Part No.:
- PI74FCT162373ATV
- Manufacturer:
- Diodes Incorporated
- Category:
- Latches
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
PI74FCT162373ATV.pdf
- Description:
- IC 16-BIT TRANS LATCH 48 SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,967
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Product details
Overview
PI74FCT162373ATV from Pericom Semiconductor is a 16-bit transparent latch with 3-state outputs, designed for high-speed bus-oriented applications. It features ±24 mA balanced output drivers, <0.6 V typical output ground bounce at 5 V/25°C, hysteresis on all inputs, and operates across –40°C to +85°C with 5 V ±10% supply. Used in backplane data latching and memory interface buffering.
For engineers reviewing the PI74FCT162373ATV datasheet, PI74FCT162373ATV pinout, PI74FCT162373ATV application, or PI74FCT162373ATV equivalent, key selection criteria include output drive symmetry, ground bounce suppression, bus noise reduction, and compatibility with 48-pin TSSOP (240-mil) footprint for space-constrained industrial control and telecom board designs.
Technical Context
This device implements dual 8-bit or single 16-bit transparent latching via independent Latch Enable (xLE, active HIGH) and Output Enable (xOE, active LOW) controls. Its CMOS-based FCT logic uses current-limiting resistors at outputs to control edge rates, reducing system-level switching noise without external termination.
All inputs include hysteresis (100 mV), improving noise immunity in noisy industrial environments. The 48-pin TSSOP package supports live insertion only in PI74FCT16373T variants - this PI74FCT162373ATV variant does not support power-off disable; its primary differentiation lies in balanced drive and low-VOLP performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 5.0 V ±10% - ensures compatibility with standard TTL/CMOS 5 V systems and tolerance to rail variation in industrial power supplies. |
| Output Drive | ±24 mA - symmetric sourcing/sinking enables robust driving of unterminated transmission lines and reduces signal integrity risk. |
| Ground Bounce (VOLP) | <0.6 V typical at VCC = 5 V, TA = 25°C - minimizes simultaneous switching noise in dense PCB layouts. |
| Propagation Delay | 1.5–8.0 ns (x Dx → x Ox) - supports >125 MHz data throughput in latch-controlled bus architectures. |
| Input Hysteresis | 100 mV - rejects sub-100 mV noise spikes on control or data lines in electrically harsh environments. |
| Operating Temperature | –40°C to +85°C - qualified for extended-temperature industrial and telecom infrastructure deployments. |
| Input Capacitance | Typ. 4.5 pF - low loading preserves signal rise/fall times in high-frequency parallel bus paths. |
Pinout & Package
PI74FCT162373ATV is housed in a 48-pin plastic TSSOP (240-mil wide), designated "A" package per Pericom's documentation. Pin numbering follows standard counter-clockwise layout starting from pin 1 (1OE) at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Active-LOW Output Enable | Controls 3-state output buffer enable/disable per 8-bit bank; allows dynamic bus sharing without contention. |
| 1LE, 2LE | Active-HIGH Latch Enable | Enables transparency when HIGH; latches data on falling edge (LOW transition) with 6 ns minimum pulse width. |
| 1D0–1D7, 2D0–2D7 | Data Inputs | 16-bit parallel input bus; all inputs feature hysteresis for noise margin in unshielded routing. |
| 1O0–1O7, 2O0–2O7 | 3-State Outputs | ±24 mA balanced drivers; low ground bounce enables direct connection to stub-loaded backplanes. |
| VCC (pins 7, 15, 23, 31, 39) | Power Supply | Five distributed VCC pins reduce IR drop and improve high-frequency decoupling across the 48-pin array. |
| GND (pins 4, 12, 20, 28, 36, 44) | Ground Reference | Six GND pins provide low-inductance return paths essential for maintaining VOLP & VOH stability under fast switching. |
Key Features
| Feature | Design Value |
|---|---|
| Balanced ±24 mA outputs | Equal sourcing/sinking capability eliminates asymmetry-induced timing skew in bidirectional bus arbitration. |
| Current-limiting output resistors | Controlled edge rates suppress EMI and eliminate need for external series termination in most 50 Ω trace environments. |
| Hysteresis on all inputs | 100 mV threshold window prevents chatter on slow-rising control signals (e.g., reset, enable) in noisy systems. |
| Low typical ground bounce (<0.6 V) | Reduces crosstalk-induced bit errors in adjacent data lanes on high-density PCBs with shared ground planes. |
| 48-pin TSSOP (240-mil) | Industry-standard footprint compatible with automated SMT placement and reflow; supports 0.5 mm pitch routing. |
Applications
| Industrial PLC Backplane Interface | Telecom Line Card Data Buffering |
|---|---|
|
Use Scenario: Latching parallel status and configuration data between FPGA and I/O modules in modular PLC chassis. IC Role / Device Role / Timing Role: 16-bit transparent latch synchronizing asynchronous module reads/writes onto shared backplane bus. Use Value: ±24 mA drive ensures signal integrity across 15 cm backplane traces; low VOLP prevents false triggering of downstream comparators. |
Use Scenario: Isolating and buffering address/data buses between DSP and SRAM on telecom line cards operating at 80 MHz. IC Role / Device Role / Timing Role: Dual 8-bit latch enabling time-multiplexed access to shared memory banks while maintaining bus isolation. Use Value: 1.5 ns min tPLH/tPHL supports tight setup/hold timing margins; hysteresis tolerates 200 mV board-level noise. |
| Automotive Engine Control Unit (ECU) Diagnostics Bus | Test Equipment Digital Pattern Generator |
|
Use Scenario: Capturing sensor register snapshots during engine fault logging in ECU diagnostic mode. IC Role / Device Role / Timing Role: Edge-triggered latch capturing parallel ADC output bits synchronized to microcontroller diagnostic clock. Use Value: –40°C to +85°C rating ensures reliability in under-hood thermal cycling; 6 ns min LE pulse width accommodates slow MCU GPIO toggling. |
Use Scenario: Holding digital stimulus patterns for DUT testing in automated boundary-scan test fixtures. IC Role / Device Role / Timing Role: Static pattern storage element feeding parallel test vectors into device-under-test I/O pins. Use Value: 3-state outputs allow multiplexed vector loading across multiple DUT sites; low input capacitance (<5 pF) preserves pattern edge fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transparent latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT162373CPAG | Same ±24 mA drive, identical pinout, but SSOP-48 (300-mil) package; higher ICCQ (500 µA vs. 100 µA typ). | Requires PCB redesign for wider body; better thermal dissipation but larger footprint. | Select when legacy SSOP-48 layout exists or higher thermal margin is prioritized over board area. |
| 74ALVC16373PW | 3.3 V only (1.65–3.6 V), lower drive (±24 mA still met), no hysteresis, 56-pin TSSOP. | Not voltage-compatible with 5 V systems; unsuitable for mixed-voltage backplanes without level translation. | Choose only for new 3.3 V-only designs where lower power and smaller geometry outweigh 5 V interoperability needs. |
Compared with SN74FCT162373CPAG and 74ALVC16373PW, PI74FCT162373ATV uniquely delivers 5 V operation, hysteresis, and 240-mil TSSOP in one package-making it optimal for space-constrained, noise-immune industrial bus interfaces requiring legacy voltage compatibility.
Availability
PI74FCT162373ATV is available at Aetrix Electronics and suitable for industrial PLC backplane interfaces, telecom line card buffering, automotive ECU diagnostics, and automated test equipment requiring stable component supply and long-lifecycle support.
Supply support for PI74FCT162373ATV 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 timing solutions, with focus on logic, PCIe, USB, and signal-integrity-optimized ICs for communications and computing.
PI74FCT162373ATV belongs to the PI74FCT family of advanced CMOS logic devices, engineered specifically for low-noise, high-drive bus interfacing in industrial and telecom infrastructure where signal integrity and thermal robustness are critical.
FAQ
Is PI74FCT162373ATV pin-compatible with PI74FCT16373ATV?
No. While both are 48-pin TSSOP latches, PI74FCT16373ATV has power-off disable outputs and –32/+64 mA drive asymmetry, whereas PI74FCT162373ATV uses ±24 mA balanced drivers and lacks power-off disable. Pin functions differ at output driver design level, making them non-interchangeable without circuit review.
Does PI74FCT162373ATV support bus hold functionality?
No. Bus Hold is exclusive to the PI74FCT162H373T variant. PI74FCT162373ATV has standard CMOS inputs without internal weak keepers; external pull-up/down resistors are required if floating inputs must be avoided during 3-state conditions.
What is the maximum clock frequency supported for reliable latching?
It does not use a clock; it is edge-triggered by Latch Enable (xLE). With 3 ns max propagation delay and 3 ns min xLE pulse width, it reliably captures data up to ~160 MHz toggle rate on xLE when driven by clean, fast edges - limited by system-level setup/hold timing, not internal clock.
Can PI74FCT162373ATV be used with 3.3 V logic levels?
No. Its absolute maximum input voltage is 7.0 V, but VIH is specified at 2.0 V minimum and VIL at 0.8 V maximum - only guaranteed for 5 V ±10% operation. Driving inputs from 3.3 V systems risks marginal VIH margin and is not characterized or recommended per datasheet.
PI74FCT162373ATV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74FCT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- D-Type Transparent Latch
- Circuit:
- 8:8
- Output Type:
- Tri-State
- Voltage - Supply:
- 4.5V ~ 5.5V
- Independent Circuits:
- 2
- Delay Time - Propagation:
- 1.5ns
- Current - Output High, Low:
- 24mA, 24mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
PI74FCT162373ATV FAQ
1.How can I place an order for PI74FCT162373ATV through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT162373ATV 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 PI74FCT162373ATV reliable?
The price and inventory of PI74FCT162373ATV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT162373ATV is usually 5 days.
3.What payment methods are accepted for PI74FCT162373ATV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74FCT162373ATV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI74FCT162373ATV?
PI74FCT162373ATV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT162373ATV 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 PI74FCT162373ATV?
For technical support, including PI74FCT162373ATV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT162373ATV requirements.
6.How does Aetrix verify that PI74FCT162373ATV is sourced from the original manufacturer or authorized distributors?
All PI74FCT162373ATV 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 PI74FCT162373ATV meets industry standards.
7.What is the process for return or replacement of PI74FCT162373ATV?
All PI74FCT162373ATV units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT162373ATV, 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 PI74FCT162373ATV part is unused and in its original packaging.
Return procedure for PI74FCT162373ATV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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