My Inquiry
My Account
Texas Instruments 74FCT162H245CTPACT
- Part No.:
- 74FCT162H245CTPACT
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74FCT162H245CTPACT.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,996
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74FCT162H245CTPACT from Texas Instruments is a 16-bit non-inverting bus transceiver with bus-hold inputs, 24-mA balanced output drivers, 4.1-ns max propagation delay (A↔B), and Ioff support for partial-power-down operation. It operates at 5V ±10% across –40°C to +85°C and is used in bidirectional data routing between microprocessor buses and peripheral subsystems in industrial control backplanes.
For engineers reviewing the 74FCT162H245CTPACT datasheet, 74FCT162H245CTPACT pinout, 74FCT162H245CTPACT application, or 74FCT162H245CTPACT equivalent, key selection criteria include bus-hold input retention, 24-mA drive strength with low ground bounce (<0.6 V), TSSOP-48 package compatibility, and industrial temperature compliance without external biasing resistors.
Technical Context
This device implements dual-octal bidirectional data flow controlled by separate DIR and OE signals per 8-bit section, enabling independent or unified 16-bit operation. Its bus-hold circuitry actively maintains last-valid logic state on all A- and B-side inputs during high-impedance conditions, eliminating pull-up/down requirements.
It features edge-rate-controlled outputs to minimize switching noise and ESD protection >2000 V. The Ioff specification ensures no backflow current when VCC = 0 V, supporting hot-insertion and power sequencing in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC | 5 V ±10% - Fixed single-supply operation compatible with TTL/CMOS logic families. |
| Propagation Delay (tPLH/tPHL) | Max 4.1 ns - Enables high-speed synchronous bus transfers up to ~240 MHz system clock edge rates. |
| Output Drive | ±24 mA - Balanced sourcing/sinking supports transmission-line driving without external termination. |
| Bus Hold Current (IBBH/IBBL) | ±50 µA - Maintains stable input logic level during floating conditions; eliminates external bias resistors. |
| Ioff | <±1 µA at VCC = 0 V - Prevents damaging back-current during partial power-down or hot-swap events. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial-grade embedded systems with thermal cycling reliability. |
| ESD Rating | >2000 V HBM - Robust handling in manufacturing and field service environments. |
Pinout & Package
74FCT162H245CTPACT is housed in a 48-pin TSSOP (DGG) package, 12.6 mm × 6.2 mm × 1.2 mm max height, 0.5-mm lead pitch, JEDEC MO-153 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control inputs (per octal) | Active-HIGH signal selects data flow direction: A→B (DIR=H) or B→A (DIR=L). |
| 1OE, 2OE | Output enable inputs (active LOW) | When HIGH, places corresponding A/B outputs in high-impedance state; enables bus isolation. |
| A1–A16 | Port A bidirectional I/O terminals | Connect to local bus; bus-hold active on all pins to prevent floating during tri-state or unconnected states. |
| B1–B16 | Port B bidirectional I/O terminals | Connect to remote bus; identical bus-hold and drive characteristics as Port A. |
| VCC, GND | Power supply and ground | Four VCC and six GND pins distributed for low-noise decoupling and reduced ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| Bus-hold inputs | Maintains last valid logic state on all 32 data pins without external resistors-reduces BOM count and layout area. |
| 24-mA balanced output drivers | Minimizes undershoot/overshoot and ground bounce (<0.6 V typical), enabling clean signal integrity on stubbed or unterminated traces. |
| Ioff partial-power-down | Prevents reverse current flow when VCC is off, supporting safe hot-plug and mixed-voltage domain interoperability. |
| Edge-rate control | Reduces simultaneous switching noise (SSN), easing EMC compliance in dense PCB layouts with multiple parallel transceivers. |
| Industrial temperature range | Validated operation from –40°C to +85°C ensures reliability in factory automation, motor drives, and outdoor infrastructure. |
Applications
| Industrial PLC Backplane Interface | Microcontroller Expansion Bus Bridge |
|---|---|
|
Use Scenario: Bidirectional data transfer between CPU module and I/O expansion cards in modular programmable logic controllers. IC Role / Device Role / Timing Role: 16-bit transceiver isolating and translating address/data/control signals between isolated bus segments. Use Value: Bus-hold prevents spurious transitions during card insertion/removal; 4.1-ns delay supports 25-MHz bus cycles with timing margin. |
Use Scenario: Extending GPIO and memory-mapped peripheral access from an MCU to external FPGA or ASIC co-processor. IC Role / Device Role / Timing Role: Synchronous bidirectional data shuttle with direction control synchronized to MCU WR/RD strobes. Use Value: ±24-mA drive sustains signal integrity over 10-cm PCB traces; Ioff allows independent power cycling of slave modules. |
| Automated Test Equipment (ATE) Signal Routing | Legacy Bus Protocol Adapter |
|
Use Scenario: Reconfigurable signal path switching between DUT interface boards and pattern generator/analyzer resources. IC Role / Device Role / Timing Role: High-speed, low-skew (≤0.5 ns) transceiver enabling deterministic timing alignment across 16-bit test vectors. Use Value: Output skew <250 ps and tight propagation delay matching ensure setup/hold compliance across all bits at 100+ Mbps. |
Use Scenario: Interfacing modern 3.3-V microcontrollers to legacy 5-V ISA or VMEbus peripherals requiring level translation and bus loading management. IC Role / Device Role / Timing Role: 5-V tolerant transceiver with bus-hold preserving legacy bus states during MCU reset or firmware update. Use Value: Eliminates need for discrete pull-ups on legacy bus lines; 5-V operation matches vintage peripheral voltage domains directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162245CTPACT | No bus-hold; 24-mA drive; same 4.1-ns delay and TSSOP-48 package. | Requires external pull-up/down resistors on all inputs; higher risk of floating-induced glitches in unpopulated slots. | Select when bus-hold is unnecessary and BOM cost reduction is prioritized over robustness in dynamic slot configurations. |
| SN74LVCH16245AQPWREP | 3.3-V only; 32-mA drive; 5.6-ns max delay; enhanced ESD (4-kV HBM); automotive-grade (-40°C to +125°C). | Not 5-V tolerant; incompatible with legacy 5-V buses unless level-shifted; suited for new 3.3-V automotive ECUs. | Select for next-gen 3.3-V designs requiring AEC-Q100 qualification and higher drive strength, not for drop-in replacement of 74FCT162H245CTPACT. |
Compared with CY74FCT162245CTPACT, 74FCT162H245CTPACT adds bus-hold for plug-and-play reliability in modular systems; compared with SN74LVCH16245AQPWREP, it retains 5-V compatibility and faster propagation but lacks automotive qualification and 3.3-V operation.
Availability
74FCT162H245CTPACT is available at Aetrix Electronics and suitable for industrial PLC backplanes, microcontroller expansion interfaces, automated test equipment signal routing, and legacy bus protocol adapters requiring stable component supply and long-term lifecycle support.
Supply support for 74FCT162H245CTPACT 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
Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The 74FCT162H245CTPACT belongs to TI's FCT logic family-designed for high-speed, low-noise, 5-V CMOS-compatible bus interfacing in industrial and telecom infrastructure where reliability and signal integrity are critical.
FAQ
What is the function of bus-hold circuitry in the 74FCT162H245CTPACT?
The bus-hold feature in the 74FCT162H245CTPACT actively retains the last valid logic state on all 32 data inputs (A1–A16 and B1–B16) when those inputs float to high impedance. This eliminates the need for external pull-up or pull-down resistors, reducing component count and preventing undefined states during hot-swap, unpopulated slots, or tri-state transitions. It is implemented via weak feedback transistors with ±50 µA sustain current.
Does the 74FCT162H245CTPACT support partial-power-down operation?
Yes, the 74FCT162H245CTPACT fully supports partial-power-down operation via its Ioff specification: when VCC = 0 V, leakage current is limited to ±1 µA, preventing damaging back-current flow through powered-down I/Os. This enables safe hot-plug capability and mixed-voltage domain interoperability in systems where subsystems power up/down independently.
What is the maximum operating speed supported by the 74FCT162H245CTPACT?
The 74FCT162H245CTPACT guarantees a maximum propagation delay of 4.1 ns (A↔B) under industrial conditions (VCC = 4.5 V, TA = +85°C). This supports reliable bidirectional data transfer at bus clock rates up to approximately 240 MHz for edge-aligned timing, assuming adequate board-level signal integrity and load capacitance ≤50 pF per line.
Can the 74FCT162H245CTPACT be used as two independent 8-bit transceivers?
Yes, the 74FCT162H245CTPACT can operate as two independent octal transceivers: Section 1 (pins A1–A8/B1–B8/1DIR/1OE) and Section 2 (pins A9–A16/B9–B16/2DIR/2OE) each have dedicated direction and output-enable controls. This allows asynchronous data flow-for example, CPU-to-peripheral on one side while peripheral-to-memory occurs on the other-without internal contention.
What package type and footprint does the 74FCT162H245CTPACT use?
The 74FCT162H245CTPACT uses a 48-pin TSSOP (Thin Shrunk Small Outline Package), TI package code DGG, with 0.5-mm lead pitch, 12.6 mm × 6.2 mm body size, and 1.2 mm max height. It complies with JEDEC MO-153 and requires a land pattern matching IPC-7351 "SOIC-TSSOP-DGG-48" with non-solder-mask-defined pads and 0.125-mm stencil thickness for optimal reflow yield.
74FCT162H245CTPACT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74FCT162H245CTPACT FAQ
1.How can I place an order for 74FCT162H245CTPACT through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT162H245CTPACT 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 74FCT162H245CTPACT reliable?
The price and inventory of 74FCT162H245CTPACT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT162H245CTPACT is usually 5 days.
3.What payment methods are accepted for 74FCT162H245CTPACT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT162H245CTPACT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74FCT162H245CTPACT?
74FCT162H245CTPACT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT162H245CTPACT 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 74FCT162H245CTPACT?
For technical support, including 74FCT162H245CTPACT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT162H245CTPACT requirements.
6.How does Aetrix verify that 74FCT162H245CTPACT is sourced from the original manufacturer or authorized distributors?
All 74FCT162H245CTPACT 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 74FCT162H245CTPACT meets industry standards.
7.What is the process for return or replacement of 74FCT162H245CTPACT?
All 74FCT162H245CTPACT units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT162H245CTPACT, 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 74FCT162H245CTPACT part is unused and in its original packaging.
Return procedure for 74FCT162H245CTPACT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74FCT162H245CTPACT 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
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
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…
