74FCT162646CTPVCT Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The 74FCT162646CTPVCT is a 16-bit bidirectional registered bus transceiver from Texas Instruments in the FCT logic family. It provides independent direction control with 24 mA output drive and operates at 5 V for high-speed bus interfaces. Available in a 56-pin SSOP package for compact high-density board designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 56
- Lifecycle
- OBSOLETE
- Datasheet
- 74FCT162646CTPVCT 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 74FCT162646CTPVCT?
- 16-bit bidirectional registered transceiver with independent direction control for flexible bus architecture
- 24 mA output drive current (I_OL) for driving heavily loaded backplane buses without external buffers
- FCT CMOS technology delivering FAST TTL-compatible switching speeds with reduced power consumption
- Separate input registers and output registers enabling registered data latching on both bus ports
- 56-pin SSOP package (R-PDSO-G56) optimizing board density in high-pin-count bus interface designs
What is 74FCT162646CTPVCT used for?
The 74FCT162646CTPVCT is designed for high-speed backplane bus interfacing, memory bus buffering, and processor-to-peripheral data highway designs in telecommunications and industrial computing equipment. Its 16-bit registered transceiver architecture allows synchronous data transfer between two independent buses while providing voltage-level isolation and drive strength amplification. The independent direction control makes it suitable for bidirectional bus arbitration in multi-master systems such as VME backplanes, PCI expansion slots, and embedded processor data buses.
What are the specifications of 74FCT162646CTPVCT?
| YTEOL | 0 |
| Control Type | INDEPENDENT CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | FCT |
| JESD-30 Code | R-PDSO-G56 |
| JESD-609 Code | e4 |
| Logic IC Type | REGISTERED 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 | SSOP56,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.5mA |
| Prop. Delay@Nom-Sup | 6.3ns |
| Propagation Delay (tpd) | 5.7ns |
| 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 | 0.635mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Type | POSITIVE EDGE |
| 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 74FCT162646CTPVCT datasheet?
74FCT162646CTPVCT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for 74FCT162646CTPVCT?
Compatible alternatives and drop-in replacements for 74FCT162646CTPVCT:
Bus Transceiver, FCT Series, 2-Func, 8-Bit, True Output, CMOS, PDSO56
Frequently Asked Questions
How does the registered architecture of 74FCT162646CTPVCT differ from a non-registered bus transceiver?
Unlike combinational transceivers such as 74FCT16245, the 74FCT162646 includes D-type flip-flop registers on both the A and B ports, clocked by separate clock inputs. This registered architecture allows synchronous data capture and retransmission, eliminating bus glitches during direction changes and supporting pipelined data transfers at clock frequencies up to 100 MHz in backplane and memory bus designs.
What output drive capability does 74FCT162646CTPVCT offer for driving loaded bus lines?
Each output can sink 24 mA (I_OL) and source approximately 15 mA (I_OH), sufficient to drive heavily loaded PCB bus lines with up to 20 parallel receiver inputs. In backplane designs with 50 Ω transmission line termination, this drive current maintains valid TTL logic levels (V_OH above 2.4 V, V_OL below 0.4 V) at board-to-board interconnects operating at 5 V.
For a VME backplane design, how many 74FCT162646CTPVCT devices are needed to buffer a 32-bit data bus?
Each 74FCT162646CTPVCT handles 16 bidirectional data bits, so a 32-bit VME data bus requires 2 devices operating in parallel. With independent enable and direction control pins, both ICs can be tied to a common bus control signal, simplifying the control logic. The 56-pin SSOP packages of both devices together occupy less than 1.5 cm² of PCB area, fitting easily on a VME transition module.
Is 74FCT162646CTPVCT compatible with 3.3 V logic inputs despite its 5 V supply?
74FCT162646CTPVCT inputs are TTL-compatible with V_IH minimum of 2.0 V, so 3.3 V CMOS outputs driving this device will satisfy the high-level input threshold. However, the device outputs swing to near 5 V, so a 3.3 V receiving device must be 5 V input-tolerant. For full 3.3 V-to-5 V level translation on a backplane bus, a separate level-shifter or a device with configurable supply rails is preferred.
What are the key differences between 74FCT162646CTPVCT and 74FCT16646 for a high-speed bus replacement?
74FCT162646CTPVCT uses FCT CMOS technology with FAST TTL-compatible propagation delays typically below 5 ns, while 74FCT16646 is an equivalent-function registered transceiver in a different package variant. The suffix 'TPVCT' designates the 56-pin SSOP package with specific tape-and-reel packaging for automated SMT assembly, making it the preferred choice for high-volume production versus the TSSOP or ceramic variants used in lower-volume prototyping.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 2026
Why Buy from FindMyChip
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.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit