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Texas Instruments CALVCH16245IDLREP
- Part No.:
- CALVCH16245IDLREP
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CALVCH16245IDLREP.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,231
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Product details
Overview
CALVCH16245IDLREP from Texas Instruments is a 16-bit dual-octal noninverting bus transceiver with 3-state outputs, designed for asynchronous bidirectional data transfer between voltage-level-compatible buses operating from 1.65 V to 3.6 V. It features ±24-mA output drive at 3.3 V, 3 ns max propagation delay, bus-hold circuitry eliminating external pull resistors, and operation across –40°C to 85°C.
For engineers reviewing the CALVCH16245IDLREP datasheet, CALVCH16245IDLREP pinout, CALVCH16245IDLREP application, or CALVCH16245IDLREP equivalent, key selection considerations include its SSOP-48 package, dual-direction control via DIR inputs, independent 3-state enable per octant (OE), and compatibility with mixed-voltage system interconnects in industrial control backplanes and FPGA I/O expansion.
Technical Context
The CALVCH16245IDLREP implements two independent 8-bit transceiver sections, each with dedicated direction (DIR) and output-enable (OE) controls. Signal flow is strictly unidirectional per section: logic level at 1DIR determines whether data passes from 1A↔1B, and 2DIR controls 2A↔2B - no internal arbitration or automatic direction sensing.
Bus-hold circuitry actively maintains valid logic states on all A- and B-port inputs when undriven, with input hold current ranging from ±25 µA to ±75 µA depending on VCC and applied voltage. Output isolation during disable (OE = high) achieves ≤±10 µA off-state leakage, supporting true bus contention avoidance in multi-driver systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - enables interoperability between 1.8-V, 2.5-V, and 3.3-V logic domains without level shifters |
| tpd Max | 3 ns at 3.3 V - supports high-speed data handshaking in real-time control interfaces |
| Output Drive | ±24 mA at 3.3 V - drives 50-Ω transmission lines or multiple CMOS loads without buffering |
| Bus-Hold Current | ±75 µA at 3 V - eliminates need for external pullup/pulldown resistors on floating data lines |
| IOZ Leakage | ±10 µA at 3.6 V - ensures robust high-impedance isolation during OE assertion |
| Operating Temp | –40°C to 85°C - qualified for extended-temperature industrial environments |
| ESD Rating | 2000-V HBM - meets JEDEC JESD22-A114A for handling robustness in manufacturing |
Pinout & Package
Package: SSOP-48 (DL), 11.35 mm × 16.2 mm body, 0.5-mm lead pitch, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (per octant) | Low = B→A data flow; High = A→B data flow; controls signal path polarity independently |
| 1OE, 2OE | Output-enable input (per octant) | Low = outputs active; High = all A/B outputs enter high-impedance state |
| 1A1–1A8, 2A1–2A8 | Port A data inputs/outputs | Bi-directional I/O pins tied to first and second 8-bit bus segments |
| 1B1–1B8, 2B1–2B8 | Port B data inputs/outputs | Bi-directional I/O pins tied to complementary bus segments; electrically isolated from A ports when OE high |
| VCC, GND | Power supply and ground | Four VCC and six GND pins distributed for low-noise power delivery and reduced ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| Dual-octal architecture | Enables independent control of two 8-bit data paths - supports split-bus protocols or redundant channel routing |
| Bus-hold inputs | Eliminates external biasing components on all 32 I/O pins, reducing BOM count and PCB area in space-constrained modules |
| 3.6-V absolute max rating | Withstands transient overvoltage events up to 4.6 V on I/O pins, improving system-level surge resilience |
| Latch-up immunity | Exceeds 250 mA per JESD17 - prevents destructive latch-up during hot-swap or power-rail sequencing faults |
| Low ICC quiescent current | 40 µA typical at 3.6 V - minimizes standby power in always-on industrial monitoring nodes |
Applications
| Industrial Backplane Interface | FPGA I/O Expansion |
|---|---|
Use Scenario: Interfacing legacy 3.3-V PLC modules with newer 1.8-V sensor acquisition cards across shared backplane traces. IC Role / Device Role / Timing Role: Bidirectional voltage-tolerant bus transceiver enabling synchronous data exchange without level-shifter ICs. Use Value: Reduces interconnect latency by 3 ns vs. discrete level-shifting solutions while maintaining signal integrity across 15-cm routed traces. |
Use Scenario: Extending FPGA GPIO banks to drive external ADCs, DACs, and digital isolators in modular test equipment. IC Role / Device Role / Timing Role: Octant-isolated transceiver providing configurable direction control per peripheral group under FPGA logic supervision. Use Value: Enables dynamic reconfiguration of I/O direction per subsystem (e.g., ADC read vs. DAC write) without FPGA pin remapping or additional logic. |
| Automated Test Equipment (ATE) Fixture | Redundant Control Bus |
Use Scenario: Driving parallel test signals to DUT sockets while capturing response data on same bus lines during functional testing. IC Role / Device Role / Timing Role: Dual-direction transceiver synchronized to ATE controller clock edges using DIR/OE timing margins validated to 4.4 ns setup/hold. Use Value: Eliminates need for separate driver/receiver pairs - cuts fixture component count by 40% and reduces trace skew-induced timing jitter. |
Use Scenario: Maintaining synchronized command/status communication between primary and backup controllers in safety-critical rail signaling systems. IC Role / Device Role / Timing Role: Fault-isolated bus coupler ensuring electrical separation between redundant buses while preserving bit-accurate data mirroring. Use Value: Achieves <1 µs failover latency due to sub-5 ns propagation delay and guaranteed high-Z isolation during controller switchover. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVCH16245 | Commercial temperature range (–40°C to 85°C); identical electrical specs and pinout | Not qualified for extended reliability screening (DMS, HAST, biased 85/85) | Select when full EP qualification is not required and cost sensitivity is higher |
| SN74LVC16245A | Lower drive strength (±24 mA only at 3.3 V, degrades to ±12 mA at 2.5 V); no bus-hold circuitry | Requires external pull resistors on unused lines; unsuitable for floating-bus architectures | Select only if operating exclusively at 3.3 V and board layout allows added passives |
Compared with SN74ALVCH16245 and SN74LVC16245A, the CALVCH16245IDLREP provides guaranteed extended-temperature operation, enhanced reliability screening, and integrated bus-hold - making it the sole choice for mission-critical industrial deployments where field failure risk must be minimized.
Availability
CALVCH16245IDLREP is available at Aetrix Electronics and suitable for industrial automation backplanes, FPGA-based instrumentation, and safety-critical control systems requiring stable component supply across long production lifecycles.
Supply support for CALVCH16245IDLREP 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets since 1930.
The CALVCH16245IDLREP belongs to TI's Widebus™ family of high-speed interface ICs, engineered specifically for low-latency, mixed-voltage bus bridging in ruggedized electronic systems deployed in harsh environments.
FAQ
What is the maximum operating voltage for CALVCH16245IDLREP?
The CALVCH16245IDLREP supports a supply voltage range of 1.65 V to 3.6 V, with absolute maximum ratings of –0.5 V to 4.6 V on VCC and I/O pins. Operation above 3.6 V is not recommended, as electrical characteristics are only specified up to 3.6 V per the SCES608A datasheet.
Does CALVCH16245IDLREP require external pull-up or pull-down resistors?
No - the CALVCH16245IDLREP integrates bus-hold circuitry on all 32 data I/O pins, actively maintaining valid logic states on undriven inputs. External resistors are unnecessary and discouraged, as they may interfere with bus-hold functionality and increase power consumption.
What is the propagation delay of CALVCH16245IDLREP at 2.5 V?
At VCC = 2.5 V and TA = –40°C to 85°C, the CALVCH16245IDLREP has a maximum propagation delay (tpd) of 3.7 ns for A↔B or B↔A data paths. This value is measured under standard load conditions (CL = 50 pF, ∆V = ±0.2 V) per Figure 1 in the SCES608A datasheet.
How does the direction-control logic work on CALVCH16245IDLREP?
The CALVCH16245IDLREP uses two independent DIR inputs: 1DIR controls data flow between 1A and 1B ports, and 2DIR controls 2A and 2B ports. When DIR = low, data flows from B to A; when DIR = high, data flows from A to B - no auto-sensing or bidirectional transparency.
Is CALVCH16245IDLREP pin-compatible with commercial-grade SN74ALVCH16245?
Yes - CALVCH16245IDLREP shares identical pinout, package (SSOP-48 DL), and electrical interface with SN74ALVCH16245. The distinction lies in qualification: CALVCH16245IDLREP is an enhanced-product (EP) variant with extended reliability testing and controlled baseline manufacturing, while SN74ALVCH16245 is commercial-grade.
CALVCH16245IDLREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ALVCH
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
CALVCH16245IDLREP FAQ
1.How can I place an order for CALVCH16245IDLREP through Aetrix?
Please submit a Request for Quotation (RFQ) for CALVCH16245IDLREP 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 CALVCH16245IDLREP reliable?
The price and inventory of CALVCH16245IDLREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CALVCH16245IDLREP is usually 5 days.
3.What payment methods are accepted for CALVCH16245IDLREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CALVCH16245IDLREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CALVCH16245IDLREP?
CALVCH16245IDLREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CALVCH16245IDLREP 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 CALVCH16245IDLREP?
For technical support, including CALVCH16245IDLREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CALVCH16245IDLREP requirements.
6.How does Aetrix verify that CALVCH16245IDLREP is sourced from the original manufacturer or authorized distributors?
All CALVCH16245IDLREP 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 CALVCH16245IDLREP meets industry standards.
7.What is the process for return or replacement of CALVCH16245IDLREP?
All CALVCH16245IDLREP units undergo pre-shipment inspection (PSI). If there is an issue with CALVCH16245IDLREP, 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 CALVCH16245IDLREP part is unused and in its original packaging.
Return procedure for CALVCH16245IDLREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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