DP83867CSRGZT - Robust GbE PHY, RGMII/SGMII, VQFN-48 | TI
MPN: DP83867CSRGZT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.45 | $12.45 |
| 10 | $11.62 | $116.20 |
| 100 | $10.84 | $1,084.00 |
| 500 | $9.55 | $4,775.00 |
| 1,000 | $8.4 | $8,400.00 |
DP83867CSRGZT Overview
An Ethernet PHY (Physical Layer transceiver) is the analog/digital mixed-signal device sitting between a Media Access Controller (MAC) and the magnetics/RJ45 connector on a copper Ethernet link. The PHY handles line encoding/decoding (PAM-5 for 1000BASE-T, MLT-3 for 100BASE-TX), link training, echo cancellation, and cross-talk mitigation across four twisted pairs, while presenting a parallel or serial digital interface to the MAC. As a Physical Layer transceiver within the seven-layer OSI model, the PHY is part of the wired networking interface layer, and a critical power-management and signal-integrity IC in any embedded Ethernet design.
Key features include cable diagnostics, low RGMII latency (TX < 90 ns, RX < 290 ns), Time-Sensitive Network (TSN) compliance, fast link drop mode, JTAG 1149.1 boundary scan support, and integrated PMD sublayers. The DP83867CS provides high ESD/EMC immunity and an ultra-low RGMII latency profile. Compared to integration assemblers using lower-immunity PHYs, the CS variant offers enhanced robustness for noisy industrial environments.
Architecturally, the device uses TI's proprietary DSP-based echo canceller and baseline wander corrector across all four pairs, with auto-negotiation and Auto-MDIX, allowing direct connection to either a straight-through or crossover cable. The SGMII option reduces MAC-to-PHY pin count to four differential signals, freeing board area in space-constrained designs.
Typical applications include industrial Ethernet switches, factory automation controllers, motor drives with EtherCAT/PROFINET support, building automation, and any embedded system requiring a small-footprint, low-power gigabit copper interface. The wide temperature range and immunity rating make the part especially suitable for industrial Ethernet switches and PLCs.
When designing with this device, pay careful attention to MDI trace routing (100-ohm differential, length-matched within the pair), magnetics selection, and decoupling on each supply pin. Reference the TI DP83867 design checklist for layout guidance, especially the four-pair MDI routing and chassis-ground separation.
Drop-in alternatives for DP83867CSRGZT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DP83867CSRGZT (same form factor and footprint) — differing in Package, Cable Diagnostics, MAC Interface, MSL Level, Product Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DP83867ISRGZR
✅ Drop-In📋 Reference alternative (not in catalog)
DP83867CRRGZR
✅ Drop-In📋 Reference alternative (not in catalog)
DP83867ERGZR
✅ Drop-In📋 Reference alternative (not in catalog)
DP83867CSRGZR
✅ Drop-In✓ In Stock
$6.45 / Unit
View Datasheet →DP83867IRRGZT
✅ Drop-In📋 Reference alternative (not in catalog)
DP83867CSRGZT Specifications
| Product Type | Ethernet Physical Layer Transceiver (PHY) |
| Data Rate | 10/100/1000 Mbps |
| Standards Supported | 10BASE-Te, 100BASE-TX, 1000BASE-T (IEEE 802.3) |
| MAC Interface | RGMII and SGMII |
| Number of Channels | 1 |
| Supply Voltage (Core) | 1.0 V |
| Configurable I/O Voltage | 3.3 V / 2.5 V / 1.8 V |
| Package | VQFN-48 (RGZ) 7 x 7 mm |
| Operating Temperature Range | 0 C to +70 C (commercial) |
| RGMII Latency (TX) | < 90 ns |
| RGMII Latency (RX) | < 290 ns |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| TSN Compliance | Yes |
| Cable Diagnostics | Yes |
| JTAG Support | Yes (IEEE 1149.1) |
DP83867CSRGZT Pin Configuration
| Pin 1 | VDD1P0 — Core 1.0V supply |
| Pin 2 | VDDIO — I/O supply (3.3V/2.5V/1.8V) |
| Pin 3 | RX_D0 — RGMII receive data bit 0 |
| Pin 4 | RX_D1 — RGMII receive data bit 1 |
| Pin 5 | RX_D2 — RGMII receive data bit 2 |
| Pin 6 | RX_D3 — RGMII receive data bit 3 |
| Pin 7 | RX_CLK — RGMII receive clock |
| Pin 8 | RX_DV — RGMII receive data valid |
| Pin 9 | RX_ER — RGMII receive error |
| Pin 10 | GND — Ground |
| Pin 11 | TX_D0 — RGMII transmit data bit 0 |
| Pin 12 | TX_D1 — RGMII transmit data bit 1 |
| Pin 13 | TX_D2 — RGMII transmit data bit 2 |
| Pin 14 | TX_D3 — RGMII transmit data bit 3 |
| Pin 15 | TX_CLK — RGMII transmit clock |
| Pin 16 | TX_EN — RGMII transmit enable |
| Pin 17 | TX_ER — RGMII transmit error |
| Pin 18 | GND — Ground |
| Pin 19 | MDIO — Management data I/O |
| Pin 20 | MDC — Management data clock |
| Pin 21 | RESETn — Hardware reset (active low) |
| Pin 22 | INTn — Interrupt output (active low) |
| Pin 23 | CLKOUT — Clock output for MAC |
| Pin 24 | XI — 25 MHz crystal input |
| Pin 25 | XO — 25 MHz crystal output |
| Pin 26 | GND — Ground |
| Pin 27 | SGMII_SDN — SGMII serial data negative |
| Pin 28 | SGMII_SDP — SGMII serial data positive |
| Pin 29 | VDD1P0 — Core 1.0V supply |
| Pin 30 | GND — Ground |
| Pin 31 | MDI_A_P — MDI pair A positive |
| Pin 32 | MDI_A_N — MDI pair A negative |
| Pin 33 | MDI_B_P — MDI pair B positive |
| Pin 34 | MDI_B_N — MDI pair B negative |
| Pin 35 | MDI_C_P — MDI pair C positive |
| Pin 36 | MDI_C_N — MDI pair C negative |
| Pin 37 | MDI_D_P — MDI pair D positive |
| Pin 38 | MDI_D_N — MDI pair D negative |
| Pin 39 | GND — Ground |
| Pin 40 | TD_P — Test/debug differential positive |
| Pin 41 | TD_N — Test/debug differential negative |
| Pin 42 | JTAG_TMS — JTAG test mode select |
| Pin 43 | JTAG_TCK — JTAG test clock |
| Pin 44 | JTAG_TDO — JTAG test data out |
| Pin 45 | JTAG_TDI — JTAG test data in |
| Pin 46 | JTAG_TRSTn — JTAG test reset (active low) |
| Pin 47 | VDDIO — I/O supply (3.3V/2.5V/1.8V) |
| Pin 48 | NC — Not connected (per datasheet) |
Typical Applications
DP83867CSRGZT is suitable for 6 applications: Industrial Ethernet Switches, Factory Automation Controllers (PLC), Motor Drives with Industrial Ethernet, Building Automation and HVAC Controllers, Embedded Single-Board Computers (SBC), Network-Attached Storage (NAS).
Industrial Ethernet Switches
The DP83867CSRGZT's high-immunity PHY core and commercial 0-70C temperature range make it ideal for managed and unmanaged industrial Ethernet switches. The 1000BASE-T support enables gigabit uplink ports, while the RGMII/SGMII MAC interface options allow flexible connection to switch ASICs. The device's TSN support enables time-sensitive networking for converged IT/OT traffic, and cable diagnostics help field technicians identify wiring faults. Power consumption stays low, allowing fanless switch designs.
Recommended
Factory Automation Controllers (PLC)
The DP83867CSRGZT provides the copper gigabit physical connection in PLCs and PACs interfacing with PROFINET, EtherCAT, or EtherNet/IP field networks. Its sub-90ns RGMII TX latency and sub-290ns RX latency are critical for deterministic fieldbus timing. The high-immunity PHY core tolerates the noisy motor-drive environment typical of factory automation. Cable diagnostics help maintenance crews troubleshoot wiring faults without disconnecting nodes.
Recommended
Motor Drives with Industrial Ethernet
Variable-frequency drives and servo drives benefit from the DP83867CSRGZT's gigabit copper interface for real-time motion control over EtherCAT or PROFINET IRT. The TSN compliance and low deterministic latency make it suitable for synchronized multi-axis systems. The robust PHY core withstands the high dv/dt switching noise from power stages, and the small VQFN-48 footprint fits space-constrained drive enclosures alongside the thermostat.
Recommended
Building Automation and HVAC Controllers
The DP83867CSRGZT provides gigabit uplink in BACnet/IP building automation controllers and BACnet gateways. The commercial temperature range suits climate-controlled equipment rooms, while the robust immunity tolerates mixed-signal noise. The low power consumption helps meet energy-efficiency targets, and the small VQFN-48 footprint enables compact panel-mount designs.
Recommended
Embedded Single-Board Computers (SBC)
Single-board computers like SOMs and SoMs use the DP83867CSRGZT to add a reliable gigabit Ethernet port to ARM-based designs. The SGMII option reduces MAC-to-PHY pin count to four differential pairs, freeing board area for other peripherals. The MDIO management interface allows the SoC to query link status, auto-negotiation results, and diagnostics. The 48-pin VQFN is hand-solderable for prototyping.
Recommended
Network-Attached Storage (NAS)
The DP83867CSRGZT's 1000BASE-T support delivers gigabit throughput required for multi-drive NAS enclosures. The auto-negotiation and Auto-MDIX features simplify connect-and-play operation with switches. Cable diagnostics help end-users identify faulty Ethernet cables that would otherwise bottleneck transfer speeds. Low power consumption is important for always-on storage appliances.
Recommended
Recommended Products Summary
Engineering reference data for DP83867CSRGZT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DP83867ISRGZR | DP83867CRRGZR | DP83867ERGZR | DP83867CSRGZR | DP83867IRRGZT |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | VQFN-48 (RGZ) 7x7 mm | VQFN-48 (RGZ) - same | VQFN-48 (RGZ) - same | VQFN-48 (RGZ) - same | VQFN-48 (RGZ) - same | VQFN-48 (RGZ) - same |
| Data Rate | 10/100/1000 Mbps | 10/100/1000 Mbps | 10/100/1000 Mbps | 10/100/1000 Mbps | 10/100/1000 Mbps | 10/100/1000 Mbps |
| MAC Interface | RGMII, SGMII | RGMII, SGMII | RGMII, SGMII | RGMII only | RGMII, SGMII | RGMII, SGMII |
| Operating Temperature | 0 C to +70 C (commercial) | -40 C to +85 C (industrial) | 0 C to +70 C | 0 C to +70 C | 0 C to +70 C | -40 C to +85 C (industrial) |
| ESD/EMC Immunity | High immunity | Highest immunity | High immunity | Standard immunity | High immunity | Highest immunity |
| TSN Compliance | Yes | Yes | Yes (with RJ45 mirror mode) | Yes | Yes | Yes |
| Special Features | SGMII + high immunity | SGMII + industrial grade | RJ45 mirror mode | RGMII only, lower cost | Same die, reel packaging | Industrial temp range |
Key Differentiators
- SGMII MAC interface option (vs DP83867ERGZR)
- High-immunity PHY core (vs DP83867ERGZR)
- TSN compliance (vs DP83867ERGZR)
- Industrial-grade upgrade path (vs DP83867ISRGZR)
Design Notes
Route the four MDI differential pairs (MDI_A, MDI_B, MDI_C, MDI_D) with 100-ohm differential impedance, and length-match within each pair to within 50 mil. Keep MDI traces short and isolated from noisy digital and power planes. Use a continuous reference ground plane beneath the MDI traces, and place the magnetics within 25 mm of the RJ45 connector for optimal EMI performance.
The DP83867CSRGZT requires two supply rails: VDD1P0 (1.0 V core) and VDDIO (3.3 V, 2.5 V, or 1.8 V configurable I/O). Place 0.1 uF and 10 uF decoupling capacitors as close as possible to each supply pin, and use a star-ground topology to isolate analog and digital grounds. A ferrite bead may be required between the MAC-side digital supply and the PHY-side analog supply to prevent digital switching noise from coupling into the analog PHY core.
Common pitfalls when designing with the DP83867CSRGZT include: (1) failing to solder the exposed thermal pad to a grounded copper pour, causing thermal shutdown; (2) incorrect strap resistor values on RX_DV/TX_EN at power-up, leading to wrong MAC interface mode selection; (3) missing the MDIO pull-up resistor, preventing PHY register access; (4) using a 25 MHz crystal with incorrect load capacitance, causing link failures at gigabit speed. Always consult the TI DP83867 design checklist before tape-out.
The SGMII interface uses a 1.25 Gbps serial differential pair (SGMII_SDP/SGMII_SDN) requiring 100-ohm differential routing with length matching within 5 mil. Maintain at least 3x trace-to-trace spacing to other signals, and avoid routing SGMII across split reference planes. If RGMII is used instead, length-match the TX_CLK/TX_D[3:0]/TX_EN group and the RX_CLK/RX_D[3:0]/RX_DV group separately, with clock-to-data skew under 40 mil for 1000BASE-T operation.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified (this is a commercial-grade part; choose DP83867IS variants for industrial). Halogen-free status not explicitly stated in available data - marked unknown.
