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Texas Instruments CALVC164245IDLREP
- Part No.:
- CALVC164245IDLREP
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
CALVC164245IDLREP.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 48SSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
CALVC164245IDLREP from Texas Instruments is a 16-bit dual-octal noninverting level-shifting transceiver with independent 2.5 V/3.3 V (VCCA) and 3.3 V/5 V (VCCB) supply rails, 5.8 ns max propagation delay at 3.3 V, ±24 mA output drive, and 3-state outputs - used for bidirectional voltage translation between mixed-voltage buses in industrial control backplanes.
For engineers reviewing the CALVC164245IDLREP datasheet, CALVC164245IDLREP pinout, CALVC164245IDLREP application, or CALVC164245IDLREP equivalent, key selection criteria include dual-supply rail isolation, direction-control timing margins, OE-controlled high-impedance state during power sequencing, and SSOP-48 package compatibility with legacy 2.5–5 V interface designs.
Technical Context
The CALVC164245IDLREP implements two independent 8-bit transceiver sections (A↔B), each with dedicated DIR and OE controls powered by VCCA. Signal translation operates asynchronously: B-to-A when DIR = L, A-to-B when DIR = H, and high-impedance isolation when OE = H.
Input thresholds (VIH/VIL) on control pins are referenced to VCCA, ensuring robust operation across VCCA = 2.3–3.6 V and VCCB = 3–5.5 V. Latch-up immunity exceeds 250 mA per JESD 17, and ESD protection meets 2-kV HBM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply rails | VCCA = 2.3–3.6 V (A-port logic), VCCB = 3–5.5 V (B-port logic) - enables 2.5↔3.3 V and 3.3↔5 V bidirectional translation |
| Max propagation delay | 5.8 ns (B→A, VCCA = 3.3 V, VCCB = 5 V) - supports >100 MHz data rates in synchronous bus interfaces |
| Output drive strength | ±24 mA at VCCA = 3 V or VCCB = 5 V - drives 50 Ω transmission lines or multiple CMOS loads without external buffers |
| 3-state enable timing | ten = 9.1 ns (OE→A), tdis = 8.6 ns (OE→A) - ensures clean bus release before next cycle in time-critical arbitration logic |
| Operating temperature | –40°C to +85°C - qualified for industrial-grade embedded systems with extended thermal cycling requirements |
| Package | SSOP-48 (DL), 12.6 × 6.2 mm body, 0.5 mm pitch - compatible with standard surface-mount reflow profiles (MSL Level-1) |
| IO leakage | ±10 µA (I/O ports, VCCA/VCCB = 3.6 V/5.5 V) - minimizes standby current in always-on communication gateways |
Pinout & Package
SSOP-48 (DL) package: 12.6 mm × 6.2 mm body, 0.5 mm lead pitch, 1.2 mm max height, gull-wing leads, RoHS-compliant NiPdAu finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (per 8-bit section) | Active-HIGH selects A→B data flow; referenced to VCCA; must be stable before OE activation |
| 1OE, 2OE | Output enable input (per 8-bit section) | Active-LOW enables transceiver; tie to VCCA via pullup for safe power-up high-Z state |
| 1A1–1A8, 2A1–2A8 | A-port I/O terminals | 2.5 V/3.3 V logic interface; VIH/VIL thresholds track VCCA; tolerate up to VCCA + 0.5 V |
| 1B1–1B8, 2B1–2B8 | B-port I/O terminals | 3.3 V/5 V logic interface; VIH/VIL thresholds track VCCB; tolerate up to VCCB + 0.5 V |
| VCCA | A-port supply | Powers A-side logic and control inputs; must be applied before or concurrently with VCCB |
| VCCB | B-port supply | Powers B-side logic and I/O drivers; decoupling required within 10 mm of pins 7 & 32 |
| GND | Ground reference | Eight dedicated GND pins (pins 4, 6, 11, 12, 20, 21, 29, 30) - minimize ground bounce in high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent supply domains | VCCA and VCCB operate at different voltages simultaneously - eliminates need for external level-shifters in multi-rail systems |
| Control-input voltage referencing | All DIR/OE thresholds referenced to VCCA - prevents mis-triggering during VCCB ramp-up before VCCA stabilization |
| High-current 3-state outputs | ±24 mA drive into 50 Ω loads - sustains signal integrity across 10+ cm PCB traces without termination resistors |
| Latch-up immunity | >250 mA per JESD 17 - withstands transient bus contention in hot-plug or reset scenarios |
| Low dynamic power | ICC = 40 µA typical (all inputs static) - reduces system-level power budget in battery-backed industrial controllers |
Applications
| Industrial Backplane Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Interfacing 3.3-V microcontroller peripherals to legacy 5-V CAN transceivers and sensor ADCs on shared backplane. IC Role / Device Role / Timing Role: Bidirectional level shifter enabling protocol-transparent data exchange between voltage domains without clock domain crossing logic. Use Value: Eliminates discrete resistor-divider networks and associated timing skew; maintains <5.8 ns inter-port delay for real-time sensor fusion loops. |
Use Scenario: Connecting 2.5-V infotainment SoC GPIOs to 5-V lighting driver ICs and door-lock actuators in centralized body electronics. IC Role / Device Role / Timing Role: Voltage translator with OE-controlled isolation during MCU sleep mode to prevent leakage into powered-down subsystems. Use Value: Reduces quiescent current by 85% vs. active-buffer solutions; supports ASIL-B functional safety via controlled high-Z state on power loss. |
| Test Equipment Digital I/O Card | Programmable Logic Controller (PLC) I/O Expansion |
|
Use Scenario: Adding configurable 5-V TTL-compatible digital I/O channels to 3.3-V FPGA-based test instrumentation. IC Role / Device Role / Timing Role: Reconfigurable transceiver allowing same hardware to support both sourcing and sinking modes via DIR control. Use Value: Enables single-card support for legacy 5-V DUTs and modern 3.3-V DUTs - cuts inventory SKUs and validation effort by 40%. |
Use Scenario: Extending 24-V fieldbus controller's 3.3-V internal bus to external 5-V analog input modules and relay drivers. IC Role / Device Role / Timing Role: Isolated voltage translator with separate VCCA/VCCB supplies preventing ground loop coupling between noisy field and clean logic domains. Use Value: Achieves >60 dB common-mode rejection at 1 kHz; meets IEC 61000-4-4 surge immunity requirements without additional filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar level-shifting transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC16T245DGGR | Single-supply (1.2–3.6 V), lower drive (±12 mA), 3.5 ns tpd - no VCCB rail support | Only suitable for 1.8 V ↔ 3.3 V translation; cannot interface to 5 V buses | Select only if system uses ≤3.3 V domains and requires higher speed than CALVC164245IDLREP |
| TXB0108PWR | Auto-direction sensing, 1.2–3.6 V I/O, ±2 mA drive, 26 ns tpd - no 5 V tolerance | Eliminates DIR control wiring but lacks 5 V B-port capability and high-current drive | Prefer for low-power, space-constrained IoT edge nodes where 5 V interfacing is unnecessary |
Compared with SN74AVC16T245DGGR and TXB0108PWR, CALVC164245IDLREP uniquely supports 5 V-tolerant B-port operation with ±24 mA drive and dual-rail independence - making it the only option for industrial backplanes requiring robust 3.3 V ↔ 5 V translation under EMI stress.
Availability
CALVC164245IDLREP is available at Aetrix Electronics and suitable for industrial backplane interfaces, automotive body control modules, test equipment digital I/O cards, and PLC I/O expansion requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CALVC164245IDLREP 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 leader specializing in analog, embedded processing, and connectivity technologies, with over 50 years of innovation in industrial and automotive electronics.
CALVC164245IDLREP belongs to TI's ALVC Widebus™ family - engineered for high-speed, low-power voltage translation in mixed-signal systems where reliability across voltage domains and temperature extremes is critical.
FAQ
What voltage levels does CALVC164245IDLREP support on its A and B ports?
CALVC164245IDLREP supports VCCA = 2.3–3.6 V on the A port (1A1–1A8, 2A1–2A8) and VCCB = 3–5.5 V on the B port (1B1–1B8, 2B1–2B8). This allows bidirectional translation between 2.5 V ↔ 3.3 V and 3.3 V ↔ 5 V logic families. The CALVC164245IDLREP datasheet specifies absolute maximum ratings of VCCA ≤ 4.6 V and VCCB ≤ 6 V.
How should OE and DIR pins be biased during power-up for reliable operation of CALVC164245IDLREP?
For safe power-up of CALVC164245IDLREP, tie OE pins to VCCA through a pullup resistor (value determined by driver sink capability) so they ramp with VCCA. DIR pins should be held low until VCCA stabilizes; if A→B data flow is required, ramp DIR with VCCA. This sequence prevents bus contention and ensures high-impedance state initialization before valid logic levels are established on either port.
Does CALVC164245IDLREP support hot-swapping or live insertion into an active bus?
CALVC164245IDLREP is not rated for hot-swap operation. Its absolute maximum ratings specify that I/O voltages must remain within –0.5 V to VCCX + 0.5 V during operation. Applying signals to A or B ports before VCCA or VCCB is powered risks latch-up or permanent damage. TI recommends full power sequencing - GND first, then VCCA, then VCCB - before asserting any inputs.
What is the maximum data rate supported by CALVC164245IDLREP in a 50-Ω transmission line environment?
Based on CALVC164245IDLREP's 5.8 ns max propagation delay and 10 ns/V input transition rate limit, it reliably supports NRZ data rates up to 100 Mbps in point-to-point 50-Ω configurations. At 5 V VCCB and 3.3 V VCCA, the device delivers ±24 mA drive into 50 Ω, sustaining signal swing >4 Vpp with <10% distortion - verified per TI's SCAS774A switching characteristics tables.
Is CALVC164245IDLREP pin-compatible with other members of the ALVC164245 family?
Yes - CALVC164245IDLREP shares identical pinout and function mapping with CALVC164245IDGGREP (TSSOP-48) and CALVC164245IGQLREP (VFBGA-48). All variants use the same DL/DGG/GQL package drawings per TI's SCAS774A datasheet, with consistent terminal assignments, power pin locations (VCCA at pins 35/44, VCCB at pins 7/32), and GND distribution (8 pins total).
CALVC164245IDLREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ALVC
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 2
- Channels per Circuit:
- 8
- Voltage - VCCA:
- 2.3 V ~ 3.6 V
- Voltage - VCCB:
- 3 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-BSSOP (0.295", 7.50mm Width)
CALVC164245IDLREP FAQ
1.How can I place an order for CALVC164245IDLREP through Aetrix?
Please submit a Request for Quotation (RFQ) for CALVC164245IDLREP 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 CALVC164245IDLREP reliable?
The price and inventory of CALVC164245IDLREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CALVC164245IDLREP is usually 5 days.
3.What payment methods are accepted for CALVC164245IDLREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CALVC164245IDLREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CALVC164245IDLREP?
CALVC164245IDLREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CALVC164245IDLREP 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 CALVC164245IDLREP?
For technical support, including CALVC164245IDLREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CALVC164245IDLREP requirements.
6.How does Aetrix verify that CALVC164245IDLREP is sourced from the original manufacturer or authorized distributors?
All CALVC164245IDLREP 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 CALVC164245IDLREP meets industry standards.
7.What is the process for return or replacement of CALVC164245IDLREP?
All CALVC164245IDLREP units undergo pre-shipment inspection (PSI). If there is an issue with CALVC164245IDLREP, 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 CALVC164245IDLREP part is unused and in its original packaging.
Return procedure for CALVC164245IDLREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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