74FCT162245CTPACT Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
74FCT162245CTPACT is a 16-bit bidirectional bus transceiver from Texas Instruments with 3-state outputs and common direction control. Key specs: 24 mA output sink current, 3.3 V compatible FCT logic family, 48-pin SSOP package. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 48
- Lifecycle
- OBSOLETE
- Datasheet
- 74FCT162245CTPACT Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 74FCT162245CTPACT?
- 16-bit bidirectional operation with common direction and output-enable controls simplifies wide data bus interface logic
- 24 mA output sink current drives backplane and heavily loaded bus lines without external buffers
- FCT logic family offers CMOS low power with TTL-compatible input thresholds for mixed 3.3 V / 5 V board interfacing
What is 74FCT162245CTPACT used for?
74FCT162245CTPACT is used as a data bus buffer and level interface between CPUs, FPGAs, and memory subsystems in workstation, server, and industrial computing boards. Its 16-bit width and 3-state outputs allow multiple transceivers to share a common bus without conflict, supporting VMEbus, PCI, and custom parallel backplane architectures. The bidirectional direction control enables half-duplex data transfers between host processors and peripheral devices in embedded systems.
What are the specifications of 74FCT162245CTPACT?
| YTEOL | 0 |
| Additional Feature | WITH DIRECTION CONTROL |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | FCT |
| JESD-30 Code | R-PDSO-G48 |
| JESD-609 Code | e4 |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.024A |
| Number of Bits | 8 |
| Number of Functions | 16 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE WITH SERIES RESISTOR |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP48,.3,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.5mA |
| Prop. Delay@Nom-Sup | 7ns |
| Propagation Delay (tpd) | 4.1ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the 74FCT162245CTPACT datasheet?
74FCT162245CTPACT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for 74FCT162245CTPACT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the output drive strength of 74FCT162245CTPACT compare to standard 74LVC245 for driving a 16-bit backplane bus?
The 74FCT162245CTPACT sources and sinks 24 mA per output, compared to the 32 mA sink of 74LVC245 but with FCT's faster propagation delay typically under 5 ns at 3.3 V. On a backplane with 10 to 20 card loads, each presenting roughly 10 pF and 50 Ω termination, the FCT device maintains signal integrity across the full 16-bit bus width with less undershoot than slower CMOS variants, making it preferable in high-speed parallel memory interfaces.
Can 74FCT162245CTPACT interface between 5 V TTL and 3.3 V CMOS logic systems?
Yes. The FCT logic family accepts 5 V tolerant inputs (VIH minimum 2.0 V, TTL compatible) while operating from a 3.3 V VCC supply, making it a direct interface between 5 V TTL-level bus drivers and 3.3 V CMOS FPGAs or ASICs. The 3-state outputs swing between GND and 3.3 V, so the receiving 3.3 V logic sees valid logic levels. No level-shifting voltage dividers are needed, saving two resistors per signal line on 16-bit interfaces.
What is the function of the output-enable and direction pins on 74FCT162245CTPACT, and how are they typically controlled?
The device has two active-low output-enable pins (OE1 and OE2) and one direction pin (DIR) that control all 16 bits together as a common control bus transceiver. When DIR is high, data flows from the B port to the A port; when DIR is low, data flows from A to B. An FPGA GPIO or a 74FCT logic gate drives these control pins, enabling the entire 16-bit bus to switch direction in a single clock cycle with approximately 4 ns propagation delay from the control input to the first valid output.
How does the 48-pin SSOP package of 74FCT162245CTPACT compare to TSSOP for PCB routing of a 16-bit bus?
The 48-pin SSOP package has a 0.635 mm pin pitch, giving a body length of approximately 17.8 mm and width of 7.5 mm. The TSSOP-48 alternative uses a finer 0.5 mm pitch with a smaller 12.5 mm × 6.1 mm footprint, saving about 40% PCB area. For boards with via-in-pad or blind-via technology, TSSOP is preferred; for standard two-layer boards with 0.2 mm minimum trace widths, the wider SSOP pitch is easier to fan out without impedance violations.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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