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DS75176BTM/NOPB
Texas Instruments
IC TRANSCEIVER HALF 1/1 8SOIC
1153 Pcs New Original In Stock
1/1 Transceiver Half RS422, RS485 8-SOIC
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (485 Ratings)
DS75176BTM/NOPB
Product Overview
1305277
DiGi Electronics Part Number
DS75176BTM/NOPB-DGManufacturer
Texas Instruments
DS75176BTM/NOPB
Description
IC TRANSCEIVER HALF 1/1 8SOICInventory
1153 Pcs New Original In Stock
1/1 Transceiver Half RS422, RS485 8-SOIC
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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DS75176BTM/NOPB Technical Specifications
Category
Interface, Drivers, Receivers, Transceivers
Packaging
-
Series
-
Product Status
Obsolete
Type
Transceiver
Protocol
RS422, RS485
Number of Drivers/Receivers
1/1
Duplex
Half
Receiver Hysteresis
70 mV
Data Rate
-
Voltage - Supply
4.75V ~ 5.25V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Supplier Device Package
8-SOIC
Base Product Number
DS75176
Datasheet & Documents
HTML Datasheet
DS75176BTM/NOPB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
5A991B1
HTSUS
8542.39.0001
Additional Information
Other Names
*DS75176BTM/NOPB
-DS75176BTM-NDR
DS75176BTMNOPB
-DS75176BTM/NOPB-DG
DS75176BTM-NDR
Standard Package
95
Alternative Parts
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MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Great prices, reliable service—that's what I value most about DiGi Electronics.
de desembre 02, 2025
The packaging quality reflects a high standard for their products.
de desembre 02, 2025
Their efficient handling of orders allows us to focus more on educational quality rather than logistics.
de desembre 02, 2025
Their delivery speed and customer support are exceptional.
de desembre 02, 2025
DiGi Electronics’ proactive after-sales assistance has always exceeded my expectations.
de desembre 02, 2025
Friendly customer service and excellent product quality make every purchase enjoyable.
de desembre 02, 2025
They delivered my order very quickly, which was impressive.
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Frequently Asked Questions (FAQ)
Can the DS75176BTM/NOPB be safely replaced with the SN65ALS1176D in an existing RS-485 industrial control system without redesigning the PCB layout?
While both the DS75176BTM/NOPB and SN65ALS1176D are pin-compatible 8-SOIC RS-485 transceivers from Texas Instruments and share similar supply voltage ranges (4.75V–5.25V), direct replacement requires caution. The SN65ALS1176D has a faster slew rate and higher typical data rate capability, which may cause signal integrity issues like ringing or EMI in systems originally tuned for the slower DS75176BTM/NOPB. Additionally, the receiver hysteresis differs slightly (70 mV vs. 50 mV), potentially affecting noise immunity in marginal environments. Always validate signal quality with an oscilloscope under full load and consider adding termination resistors or ferrite beads if reflections appear. For legacy systems with long stubs or high capacitance, a drop-in replacement may introduce intermittent communication failures.
What are the key reliability risks when using the DS75176BTM/NOPB in outdoor telecom enclosures exposed to temperature cycling from -30°C to 75°C?
Although the DS75176BTM/NOPB is rated for -40°C to 85°C operation, long-term reliability in outdoor telecom applications is threatened by thermal cycling stress on the 8-SOIC package solder joints, especially if the PCB has mismatched CTE (coefficient of thermal expansion). The device’s half-duplex RS-485 interface is sensitive to ground potential differences that can worsen with temperature-induced cable impedance changes. Additionally, condensation during cold starts may lead to leakage currents on the bus lines, potentially exceeding the receiver’s common-mode range. To mitigate risk, use conformal coating, ensure proper bus termination with fail-safe biasing, and avoid routing signal traces near board edges. Consider upgrading to a more robust transceiver like the ISL3180EIBZ if field failures occur due to environmental stress.
How does the DS75176BTM/NOPB compare to the LTC485IS8#PBF in terms of ESD protection and suitability for harsh industrial environments?
The DS75176BTM/NOPB offers basic ESD protection (typically ±15 kV IEC 61000-4-2 contact discharge), but lacks integrated fault protection or high common-mode transient immunity. In contrast, the LTC485IS8#PBF from Analog Devices provides superior ESD hardening (±25 kV) and better performance under inductive load switching or ground bounce—common in motor-driven industrial settings. If your application involves long cable runs (>100m) or proximity to high-current machinery, the LTC485IS8#PBF is a safer choice despite minor pinout differences requiring layout adjustments. The DS75176BTM/NOPB remains viable only in controlled environments with proper TVS diodes and isolated power supplies; otherwise, field returns due to ESD damage are likely.
Is it safe to operate the DS75176BTM/NOPB at 5.25V continuously in a 24/7 data acquisition system, and could this accelerate long-term degradation?
Operating the DS75176BTM/NOPB at its maximum specified supply voltage (5.25V) is within datasheet limits, but continuous operation at this upper bound increases power dissipation and junction temperature, especially under heavy bus loading. Over time, this can accelerate electromigration in the internal bond wires and degrade output driver performance, leading to increased rise/fall times and potential communication errors. In 24/7 systems, derating the supply to 5.0V ±2% improves longevity. Also, ensure adequate PCB copper pour under the 8-SOIC package for heat spreading. Monitor system error rates over time—if bit errors increase, consider migrating to a more thermally efficient alternative like the SP483EEN-L/TR, which has better thermal characteristics in SOIC packages.
Can the DS75176BTM/NOPB support multi-drop RS-485 networks with 32 nodes, and what design precautions are necessary to avoid bus contention?
Yes, the DS75176BTM/NOPB can theoretically support up to 32 unit loads on a single RS-485 bus per the standard, but real-world performance depends on careful design. Since it uses a half-duplex, 1-driver/1-receiver architecture, bus contention can occur if multiple nodes transmit simultaneously—even briefly—due to software timing errors or EMI-induced glitches. To prevent damage, implement strict protocol-level collision avoidance (e.g., master-slave polling) and ensure all transceivers have tri-state outputs disabled during receive mode. Use a failsafe bias network (e.g., 1.5kΩ pull-up on A, 1.5kΩ pull-down on B) to maintain idle-state differential voltage. Also, verify that total cable capacitance stays below 4000 pF to preserve signal integrity at your target baud rate. For networks exceeding 16 nodes or operating above 1 Mbps, consider upgrading to a transceiver with built-in slew-rate limiting like the LT1785IS8#PBF.
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DS75176BTM/NOPB CAD Models
Texas Instruments DS75176BTM/NOPB PCB symbols & footprints
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