SN74ALS29854DWE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74ALS29854DWE4 is an 8-to-9-bit parity bus transceiver IC from Texas Instruments in the ALS logic family, offered in a 24-pin SOIC package. It features bidirectional data transfer with parity generation A-to-B and error detection B-to-A using odd parity, with 48mA output sink current. Available from authorized distributors worldwide with in-stock inventory and global shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 24
- Lifecycle
- OBSOLETE
- Datasheet
- SN74ALS29854DWE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74ALS29854DWE4?
- 8-to-9-bit bidirectional parity bus transceiver with hardware parity generation and error detection in a single IC
- Odd parity generation (A to B) and parity error detection (B to A) with independent control inputs
- ALS-family logic with 48mA max output sink current and 300pF load capacitance for robust bus driving
What is SN74ALS29854DWE4 used for?
The SN74ALS29854DWE4 is designed for high-reliability data bus applications requiring built-in parity checking and error detection across bidirectional 8-bit data paths. It is commonly used in industrial computers, telecommunications equipment, and fault-tolerant computing systems where data integrity validation is critical. The ALS logic family ensures compatibility with standard TTL bus architectures while delivering enhanced speed and drive capability.
What are the specifications of SN74ALS29854DWE4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | PARITY GENERATION A TO B; ERROR DETECTION B TO A; ODD PARITY |
| Control Type | INDEPENDENT CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | ALS |
| JESD-30 Code | R-PDSO-G24 |
| Load Capacitance (CL) | 300pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.048A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP24,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 100mA |
| Prop. Delay@Nom-Sup | 8ns |
| Propagation Delay (tpd) | 13ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25V |
| Supply Voltage-Min (Vsup) | 4.75V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Type | LOW LEVEL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the SN74ALS29854DWE4 datasheet?
SN74ALS29854DWE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74ALS29854DWE4?
Compatible alternatives and drop-in replacements for SN74ALS29854DWE4:
Rochester Electronics LLC ALS SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO24, PLASTIC, SO-24
Bus Transceiver, ALS Series, 1-Func, 8-Bit, Inverted Output, TTL, PDSO24
Bus Transceiver, ALS Series, 1-Func, 8-Bit, Inverted Output, TTL, PDSO24
Bus Transceiver, ALS Series, 1-Func, 8-Bit, Inverted Output, TTL, PDSO24
Frequently Asked Questions
What parity scheme does the SN74ALS29854DWE4 use?
The SN74ALS29854DWE4 uses odd parity. It generates parity when transmitting from A to B direction and detects parity errors when receiving in the B to A direction, providing built-in data integrity checking for 8-bit bus systems.
What is the output drive capability of the SN74ALS29854DWE4?
The SN74ALS29854DWE4 has a maximum output sink current (IOL) of 48mA and supports a 300pF load capacitance, making it suitable for driving heavy bus loads in backplane and multi-card computing systems.
What package is the SN74ALS29854DWE4 available in?
The SN74ALS29854DWE4 is housed in a 24-pin Small Outline Package (SOIC), per JESD-30 code R-PDSO-G24. This surface-mount package enables compact PCB layouts while maintaining compatibility with standard 24-pin footprints.
What logic family does the SN74ALS29854DWE4 belong to?
The SN74ALS29854DWE4 belongs to the ALS (Advanced Low-power Schottky) logic family, which offers improved speed and lower power consumption compared to standard LS-TTL, while maintaining full TTL bus compatibility with independent directional control.
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
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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