DP83907VF - 10Base-T Ethernet NIC Controller ISA Interface | TI
MPN: DP83907VF ✗ סוף ייצורDP83907VF סקירה
What is an Ethernet NIC controller? A NIC controller is an integrated circuit that bridges a host processor's parallel bus (such as ISA, PCI, or PCIe) to a Media Access Control layer that implements the CSMA/CD protocol used by IEEE 802.3 Ethernet. The DP83907 sits in the hierarchy: 10Base-T PHY → Ethernet MAC → NIC controller → host bus controller → PC motherboard. By integrating the entire PC-AT ISA bus interface along with the MAC and 10 Mb/s physical front-end, the DP83907 reduces discrete component count and lets designers add a 10 Mb/s LAN port with minimal glue logic.
Key features of the DP83907VF include on-chip Manchester encoder/decoder for 10Base-T, integrated 10Base-T transceiver (twisted-pair), built-in attachment unit interface (AUI) for external MAU support, full ISA (Industry Standard Architecture) 8/16-bit bus mastering DMA engine, and configurable I/O and memory mapped modes. The device offers a 2-channel CSMA/CD link, supporting 1.25 MBps raw throughput on the serial side. CMOS process technology keeps power dissipation under 1W typical.
Architecturally, the DP83907VF partitions cleanly into a bus interface unit, a CSMA/CD MAC engine, a Manchester ENDEC, and a 10Base-T analog front end. The MAC performs framing, CRC-32 generation/checking, collision detection, and back-off timing, while the analog front-end provides transmit waveshaping and receive equalization for 100-meter Category-3 cable runs. The combination targets PC-AT/PC/XT motherboards, ISA add-in cards, embedded LAN adapters, and industrial 10 Mb/s backbones.
Typical applications include ISA-bus Ethernet NIC add-in cards, factory-floor 10Base-T bridges, industrial automation controllers with embedded LAN ports, legacy PC motherboard LAN-on-board designs, and 10 Mb/s repeaters/hubs requiring a host-managed controller. Because the part integrates the AUI option, it can also drive an external 10Base2 (BNC) transceiver for coax-based legacy LANs.
When designing with the DP83907VF, plan ISA bus arbitration because bus-master DMA requires care to coexist with other bus masters. Add 4.7 kΩ pull-ups on configured strap inputs (IRQ, I/O base address) and keep the analog ground (AGND) and digital ground (DGND) separated under the package, joining them only at the PCB main ground plane to preserve 10Base-T jitter margins.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
חלופות תחליף ישיר עבור DP83907VF — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
DP83907VF/NOPB
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
DP83907CVF
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
DP83907ATVF
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
DP83907VF מפרטים
| Controller Type | Network Interface Controller (NIC) |
| פונקציה | 10Base-T Ethernet MAC + PHY + ISA bus interface |
| Network Standard | IEEE 802.3 10Base-T (Twisted Pair) |
| קצב נתונים | 10 Mb/s (1.25 MBps serial throughput) |
| Number of Channels | 2 (CSMA/CD 2-channel) |
| Host Bus Interface | ISA (PC-AT Industry Standard Architecture), 8/16-bit DMA bus master |
| מתח אספקה | 4.75 V to 5.25 V (single 5 V supply) |
| זרם אספקה | 150 mA (typical at 5 V) |
| Media Interface | Twisted Pair (10Base-T) with AUI option for external MAU/coax |
| On-chip Encoder/Decoder | Manchester ENDEC integrated |
| Process Technology | CMOS |
| טמפרטורת פעולה | 0 °C to +70 °C (Commercial) |
| מארז | 132-BQFP (PQFP-132, 24.13 x 24.13 mm, gull wing) |
| סוג הרכבה | Surface Mount |
| Packaging | Tube |
| Manufacturer | Texas Instruments (originally National Semiconductor) |
תצורת פינים של DP83907VF
| פין 1 | GND — Digital ground |
| פין 2 | VCC — +5 V supply |
| פין 3 | TPTD+ — Twisted-pair transmit data positive |
| פין 4 | TPTD- — Twisted-pair transmit data negative |
| פין 5 | TPRD+ — Twisted-pair receive data positive |
| פין 6 | TPRD- — Twisted-pair receive data negative |
| פין 7 | AUI_DO+ — AUI data out positive (to external MAU) |
| פין 8 | AUI_DO- — AUI data out negative (to external MAU) |
| פין 9 | AUI_DI+ — AUI data in positive (from external MAU) |
| פין 10 | AUI_DI- — AUI data in negative (from external MAU) |
| פין 11 | CD+/- — AUI collision differential pair |
| פין 12 | RESET — Power-on / hardware reset, active high |
| פין 13 | SA0 — ISA address strap / A0 |
| פין 14 | SA1 — ISA address line A1 |
| פין 15 | SA2 — ISA address line A2 |
| פין 16 | SA3 — ISA address line A3 |
| פין 17 | SA4 — ISA address line A4 |
| פין 18 | SA5 — ISA address line A5 |
| פין 19 | SA6 — ISA address line A6 |
| פין 20 | SA7 — ISA address line A7 |
| פין 21 | SA8 — ISA address line A8 |
| פין 22 | SA9 — ISA address line A9 |
| פין 23 | SA10 — ISA address line A10 |
| פין 24 | SA11 — ISA address line A11 |
| פין 25 | SA12 — ISA address line A12 |
| פין 26 | SA13 — ISA address line A13 |
| פין 27 | SA14 — ISA address line A14 |
| פין 28 | SA15 — ISA address line A15 |
| פין 29 | SA16 — ISA address line A16 (24-bit address) |
| פין 30 | SA17 — ISA address line A17 |
| פין 31 | SA18 — ISA address line A18 |
| פין 32 | SA19 — ISA address line A19 |
| פין 33 | SA20 — ISA address line A20 |
| פין 34 | SA21 — ISA address line A21 |
| פין 35 | SA22 — ISA address line A22 |
| פין 36 | SA23 — ISA address line A23 |
| פין 37 | SD0 — ISA data line D0 |
| פין 38 | SD1 — ISA data line D1 |
| פין 39 | SD2 — ISA data line D2 |
| פין 40 | SD3 — ISA data line D3 |
| פין 41 | SD4 — ISA data line D4 |
| פין 42 | SD5 — ISA data line D5 |
| פין 43 | SD6 — ISA data line D6 |
| פין 44 | SD7 — ISA data line D7 |
| פין 45 | SD8 — ISA data line D8 |
| פין 46 | SD9 — ISA data line D9 |
| פין 47 | SD10 — ISA data line D10 |
| פין 48 | SD11 — ISA data line D11 |
| פין 49 | SD12 — ISA data line D12 |
| פין 50 | SD13 — ISA data line D13 |
| פין 51 | SD14 — ISA data line D14 |
| פין 52 | SD15 — ISA data line D15 |
| פין 53 | IOR — ISA I/O read strobe, active low |
| פין 54 | IOW — ISA I/O write strobe, active low |
| פין 55 | MEMR — ISA memory read strobe, active low |
| פין 56 | MEMW — ISA memory write strobe, active low |
| פין 57 | REFRESH — ISA bus refresh signal, active low |
| פין 58 | SYSCLK — ISA system clock input |
| פין 59 | DRQ0 — ISA DMA request line 0 (default channel) |
| פין 60 | DRQ1 — ISA DMA request line 1 (alternate) |
| פין 61 | DRQ2 — ISA DMA request line 2 (alternate) |
| פין 62 | DRQ3 — ISA DMA request line 3 (alternate) |
| פין 63 | DACK0 — ISA DMA acknowledge, channel 0 |
| פין 64 | DACK1 — ISA DMA acknowledge, channel 1 |
| פין 65 | DACK2 — ISA DMA acknowledge, channel 2 |
| פין 66 | DACK3 — ISA DMA acknowledge, channel 3 |
| פין 67 | AEN — ISA address enable, active high |
| פין 68 | BCLK — ISA bus clock (8.33 MHz typical) |
| פין 69 | IRQ2 — ISA interrupt request 2 |
| פין 70 | IRQ3 — ISA interrupt request 3 |
| פין 71 | IRQ4 — ISA interrupt request 4 |
| פין 72 | IRQ5 — ISA interrupt request 5 |
| פין 73 | IRQ6 — ISA interrupt request 6 |
| פין 74 | IRQ7 — ISA interrupt request 7 |
| פין 75 | IRQ10 — ISA interrupt request 10 |
| פין 76 | IRQ11 — ISA interrupt request 11 |
| פין 77 | IRQ12 — ISA interrupt request 12 |
| פין 78 | IRQ14 — ISA interrupt request 14 |
| פין 79 | IRQ15 — ISA interrupt request 15 |
| פין 80 | IO16 — ISA 16-bit I/O cycle indicator |
| פין 81 | MEM16 — ISA 16-bit memory cycle indicator |
| פין 82 | OWS — ISA zero-wait-state indicator, active low |
| פין 83 | RDY — ISA channel ready, active high |
| פין 84 | CS — Chip select (configurable), active low |
| פין 85 | IOADDR0 — I/O base address strap 0 |
| פין 86 | IOADDR1 — I/O base address strap 1 |
| פין 87 | IOADDR2 — I/O base address strap 2 |
| פין 88 | IOADDR3 — I/O base address strap 3 |
| פין 89 | IOADDR4 — I/O base address strap 4 |
| פין 90 | BOOT0 — Boot strap / test mode 0 |
| פין 91 | BOOT1 — Boot strap / test mode 1 |
| פין 92 | BOOT2 — Boot strap / test mode 2 |
| פין 93 | BOOT3 — Boot strap / test mode 3 |
| פין 94 | TEST — Factory test mode enable, active low (NC in normal use) |
| פין 95 | XTAL1 — 20 MHz crystal oscillator input |
| פין 96 | XTAL2 — 20 MHz crystal oscillator output |
| פין 97 | LED0 — Status LED 0 driver output (active low) |
| פין 98 | LED1 — Status LED 1 driver output (link/activity) |
| פין 99 | LED2 — Status LED 2 driver output (collision) |
| פין 100 | GND — Analog ground (for analog block) |
| פין 101 | VCC — +5 V analog supply |
| פין 102 | RXD+ — Receive data internal positive |
| פין 103 | RXD- — Receive data internal negative |
| פין 104 | TXD+ — Transmit data internal positive |
| פין 105 | TXD- — Transmit data internal negative |
| פין 106 | PLL_VCC — PLL +5 V supply, decoupled |
| פין 107 | PLL_GND — PLL analog ground |
| פין 108 | BIAS — Internal bias network node (external resistor to AVDD) |
| פין 109 | REF — External 1% reference resistor for internal bias |
| פין 110 | TPBIAS+ — Twisted-pair center-tap positive (to transformer) |
| פין 111 | TPBIAS- — Twisted-pair center-tap negative (to transformer) |
| פין 112 | RP — Receive polarity (link test) input |
| פין 113 | TXE/RCV — Transmit enable / receive mode strap |
| פין 114 | LOOPBACK — Loopback mode enable, active high |
| פין 115 | POWERDOWN — Power-down mode, active high |
| פין 116 | RESERVE — Reserved, do not connect |
| פין 117 | NC — Not connected (per datasheet) |
| פין 118 | NC — Not connected (per datasheet) |
| פין 119 | NC — Not connected (per datasheet) |
| פין 120 | NC — Not connected (per datasheet) |
| פין 121 | NC — Not connected (per datasheet) |
| פין 122 | NC — Not connected (per datasheet) |
| פין 123 | GND — Digital ground |
| פין 124 | VCC — +5 V supply |
| פין 125 | EEDATA — EEPROM serial data |
| פין 126 | EECLK — EEPROM serial clock |
| פין 127 | EECS — EEPROM chip select |
| פין 128 | EEEN — EEPROM enable / load strap |
| פין 129 | JABBER — Jabber disable strap, active low |
| פין 130 | LINK — Link integrity test enable strap |
| פין 131 | BNC — BNC/coax mode select strap |
| פין 132 | AUI_TPE — AUI / twisted-pair mode select strap |
יישומים טיפוסיים
DP83907VF מתאים עבור 6 יישוםs: ISA-Bus Ethernet NIC Add-in Card (10Base-T), Industrial 10Base-T Bridge / Repeater, Legacy PC Motherboard LAN-on-Board, Industrial Automation Controller with Embedded 10 Mb/s LAN, 10 Mb/s Hub / Repeater with Host Management, Embedded/Retro Computing PC-AT Replica Systems.
ISA-Bus Ethernet NIC Add-in Card (10Base-T)
The DP83907VF is uniquely suited for legacy ISA-bus 10Base-T Ethernet network interface cards because it integrates the entire PC-AT ISA 8/16-bit bus-master DMA controller with the IEEE 802.3 CSMA/CD MAC and 10Base-T analog front-end. Placed on the card, it eliminates separate MAC + ISA glue PLD + transceiver parts that earlier 10 Mb/s designs required. With 150 mA at 5 V (about 0.75 W dissipation) the part runs cool without a heatsink, and the Manchester ENDEC plus on-chip 10Base-T waveshaping deliver compliant 10 Mb/s signaling over 100 m of Category-3 cable. The integrated IRQ/I/O-base strap inputs let one card design serve multiple address configurations via jumper blocks.
מומלץ
Industrial 10Base-T Bridge / Repeater
The DP83907VF serves as the host-side managed controller in industrial 10Base-T bridges and repeaters because its CSMA/CD MAC and on-chip 10Base-T PHY handle one twisted-pair port while the ISA bus interfaces to a microcontroller supervisor. Designers connect the ISA bus to a 16-bit embedded controller running the bridge management stack; the 150 mA current budget keeps power supplies simple for fanless industrial enclosures. The AUI option lets the same controller switch to 10Base2 or fiber MAUs, supporting bridge deployments on mixed-media legacy plants without redesigning the controller section.
מומלץ
Legacy PC Motherboard LAN-on-Board
PC motherboard designers in the 1990s placed the DP83907VF directly on the AT/ATX motherboard to provide 10 Mb/s LAN without a riser card, using the ISA DMA bus to transfer packets directly to system memory. The 132-BQFP outline mounts cleanly next to the ISA bridge controller, and the 4.75-5.25 V supply matches the standard ATX 5 V rail with no regulator overhead. Although 10 Mb/s is dated for new builds, the part remains a well-documented reference for documenting, repairing, or replicating period-correct PC motherboards and clone industrial PC-class systems.
מומלץ
Industrial Automation Controller with Embedded 10 Mb/s LAN
Programmable Logic Controllers and industrial automation gateways that already use ISA/PC-104 stacks can host the DP83907VF to add 10 Mb/s LAN without changing the bus architecture. The 0-70 °C commercial temperature grade suits factory cabinets, and the 150 mA current keeps total board power within tight industrial supply budgets. The integrated Manchester ENDEC and CSMA/CD MAC meet the IEEE 802.3 spec without external transceivers, reducing part count and BOM risk in long-lifecycle industrial equipment that must remain serviceable for 15-20 years.
מומלץ
10 Mb/s Hub / Repeater with Host Management
Managed 10Base-T hubs from the 1990s used a DP83907VF per port to bridge Ethernet segments to a management CPU over the ISA bus, since on-chip CSMA/CD and Manchester ENDEC handled the per-port state machine. The AUI output lets the same hardware drive a backbone 10Base2 coax segment instead of a twisted-pair port with a single jumper change. With supply current of 150 mA and well-documented register set, the DP83907VF enabled tier-1 hub vendors to deliver managed-port products long before dedicated 10/100 hub ASICs existed.
מומלץ
Embedded/Retro Computing PC-AT Replica Systems
Retro-computing enthusiasts and embedded-system integrators replicating period PCs (286/386/486 motherboards, ISA add-in cards) use the DP83907VF as the LAN solution because it is period-correct 1990s silicon and integrates the full ISA + MAC + PHY stack on a single chip. The bumpered 132-BQFP package is hand-solderable by experienced retro builders, and the 5 V single-supply operation matches the AT/ATX power rails of the era. Reliability data from 30+ year OEM deployments confirms 10Base-T interoperability with modern Cat-5 cabling at hub/switch auto-negotiated 10 Mb/s speeds.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור DP83907VF — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | DP83907VF/NOPB | DP83907CVF | DP83907ATVF |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 132-BQFP (PQFP-132, 24.13 x 24.13 mm) | 132-BQFP (PQFP-132, 24.13 x 24.13 mm) - same | 132-BQFP (PQFP-132, 24.13 x 24.13 mm) - same | 132-BQFP (PQFP-132, 24.13 x 24.13 mm) - same |
| Function | 10Base-T NIC with ISA DMA bus master | 10Base-T NIC with ISA DMA bus master | 10Base-T NIC with ISA DMA bus master | 10Base-T NIC with ISA DMA bus master |
| Supply Voltage | 4.75 V - 5.25 V | 4.75 V - 5.25 V | 4.75 V - 5.25 V | 4.75 V - 5.25 V |
| Data Rate | 10 Mb/s (1.25 MBps) | 10 Mb/s (1.25 MBps) | 10 Mb/s (1.25 MBps) | 10 Mb/s (1.25 MBps) |
| Channels | 2 (CSMA/CD) | 2 (CSMA/CD) | 2 (CSMA/CD) | 2 (CSMA/CD) |
| Operating Temperature | 0 °C to +70 °C (Commercial) | 0 °C to +70 °C (Commercial) | 0 °C to +70 °C (Commercial) | 0 °C to +70 °C (Commercial) |
| Lead Finish | SnPb (leaded) | Pb-free matte tin (RoHS) | SnPb (leaded) | SnPb (leaded) |
| Lifecycle Status | Obsolete / legacy authorized | Obsolete / legacy authorized | Obsolete / legacy authorized | Obsolete / legacy authorized |
מבדילים עיקריים
- Integrated ISA DMA bus-master eliminates external MAC + ISA glue logic (לעומתDP83848AFV)
- Pb-free terminal finish available for RoHS-compliant builds (לעומתDP83907VF (this part))
- Pin-for-pin drop-in within the DP83907 family keeps legacy ISA designs on a single footprint (לעומתDP83907CVF and DP83907ATVF)
הערות תכנון
Estimated: At VCC = 5 V and 150 mA typical supply current, the DP83907VF dissipates roughly 0.75 W. Add a 10 µF bulk plus 0.1 µF ceramic decoupling capacitor within 5 mm of each VCC/GND pin pair; pay special attention to pins 101 (analog VCC) and 106 (PLL VCC) which require separate analog filtering to keep Manchester ENDEC jitter within IEEE 802.3 limits. The BIAS pin (108) needs an external 5 kΩ 1% resistor to AVDD; do not substitute.
Route the analog ground (AGND, pin 100) and digital ground (DGND, pins 1/123) separately under the BQFP footprint and join them only at the main PCB ground plane directly under the package thermal pad. Keep the 20 MHz XTAL traces (pins 95/96) less than 5 mm long and guarded by DGND via fences. Twisted-pair traces TPTD+/-, TPRD+/- must be 100 Ω differential with matched length to within 2 mm; route them on the top layer over a continuous ground plane.
The Manchester ENDEC and AUI driver generate fast edges; isolate the BQFP from adjacent ISA bus traces with a ground guard ring on the inner PCB layers to prevent overshoot/undershoot on 10Base-T signaling. On the ISA bus side, ensure SA0-SA23, SD0-SD15, and the strobe lines (IOR, IOW, MEMR, MEMW) are all reference-switched to a contiguous ground to pass the bus master's DMA burst timing. Add 22 Ω series damping on DRQ0/DRQ1 lines to avoid double-clocking into the bus arbiter.
Do not connect NC pins (117-122) - on the 132-BQFP bumpered variant they are intentionally unbonded and routing to them can create shorts. The TEST pin (94) must be left floating (no-connect) in production, not tied high or low. The BNC/AUI/TPE strap pins (131, 132) require 4.7 kΩ pull-ups or pull-downs according to medium selection; floating them places the controller in an undefined state. Always deassert RESET (pin 12) for at least 100 µs after VCC reaches 4.75 V to allow the analog PLL to stabilize.
מידע על תאימות
Standard DP83907VF uses SnPb lead terminal finish and is NOT RoHS compliant; choose DP83907VF/NOPB for RoHS. No AEC-Q100 automotive grade; commercial temperature only. REACH / halogen-free / conflict-minerals status not stated in verified data.
