DP83907VF - 10Base-T Ethernet NIC Controller ISA Interface | TI
MPN: DP83907VF ✗ Akhir HidupDP83907VF Ringkasan
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.
Alternatif penggantian untuk DP83907VF — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
DP83907VF/NOPB
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
DP83907CVF
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
DP83907ATVF
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
DP83907VF Spesifikasi
| Controller Type | Network Interface Controller (NIC) |
| Fungsi | 10Base-T Ethernet MAC + PHY + ISA bus interface |
| Network Standard | IEEE 802.3 10Base-T (Twisted Pair) |
| Laju Data | 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 |
| Tegangan Pemuat | 4.75 V to 5.25 V (single 5 V supply) |
| Arus Pemuat | 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 |
| Suhu Kerja | 0 °C to +70 °C (Commercial) |
| Paket | 132-BQFP (PQFP-132, 24.13 x 24.13 mm, gull wing) |
| Tipe Mounting | Surface Mount |
| Packaging | Tube |
| Manufacturer | Texas Instruments (originally National Semiconductor) |
Konfigurasi Pin DP83907VF
| Pin produk 1 | GND — Digital ground |
| Pin produk 2 | VCC — +5 V supply |
| Pin produk 3 | TPTD+ — Twisted-pair transmit data positive |
| Pin produk 4 | TPTD- — Twisted-pair transmit data negative |
| Pin produk 5 | TPRD+ — Twisted-pair receive data positive |
| Pin produk 6 | TPRD- — Twisted-pair receive data negative |
| Pin produk 7 | AUI_DO+ — AUI data out positive (to external MAU) |
| Pin produk 8 | AUI_DO- — AUI data out negative (to external MAU) |
| Pin produk 9 | AUI_DI+ — AUI data in positive (from external MAU) |
| Pin produk 10 | AUI_DI- — AUI data in negative (from external MAU) |
| Pin produk 11 | CD+/- — AUI collision differential pair |
| Pin produk 12 | RESET — Power-on / hardware reset, active high |
| Pin produk 13 | SA0 — ISA address strap / A0 |
| Pin produk 14 | SA1 — ISA address line A1 |
| Pin produk 15 | SA2 — ISA address line A2 |
| Pin produk 16 | SA3 — ISA address line A3 |
| Pin produk 17 | SA4 — ISA address line A4 |
| Pin produk 18 | SA5 — ISA address line A5 |
| Pin produk 19 | SA6 — ISA address line A6 |
| Pin produk 20 | SA7 — ISA address line A7 |
| Pin produk 21 | SA8 — ISA address line A8 |
| Pin produk 22 | SA9 — ISA address line A9 |
| Pin produk 23 | SA10 — ISA address line A10 |
| Pin produk 24 | SA11 — ISA address line A11 |
| Pin produk 25 | SA12 — ISA address line A12 |
| Pin produk 26 | SA13 — ISA address line A13 |
| Pin produk 27 | SA14 — ISA address line A14 |
| Pin produk 28 | SA15 — ISA address line A15 |
| Pin produk 29 | SA16 — ISA address line A16 (24-bit address) |
| Pin produk 30 | SA17 — ISA address line A17 |
| Pin produk 31 | SA18 — ISA address line A18 |
| Pin produk 32 | SA19 — ISA address line A19 |
| Pin produk 33 | SA20 — ISA address line A20 |
| Pin produk 34 | SA21 — ISA address line A21 |
| Pin produk 35 | SA22 — ISA address line A22 |
| Pin produk 36 | SA23 — ISA address line A23 |
| Pin produk 37 | SD0 — ISA data line D0 |
| Pin produk 38 | SD1 — ISA data line D1 |
| Pin produk 39 | SD2 — ISA data line D2 |
| Pin produk 40 | SD3 — ISA data line D3 |
| Pin produk 41 | SD4 — ISA data line D4 |
| Pin produk 42 | SD5 — ISA data line D5 |
| Pin produk 43 | SD6 — ISA data line D6 |
| Pin produk 44 | SD7 — ISA data line D7 |
| Pin produk 45 | SD8 — ISA data line D8 |
| Pin produk 46 | SD9 — ISA data line D9 |
| Pin produk 47 | SD10 — ISA data line D10 |
| Pin produk 48 | SD11 — ISA data line D11 |
| Pin produk 49 | SD12 — ISA data line D12 |
| Pin produk 50 | SD13 — ISA data line D13 |
| Pin produk 51 | SD14 — ISA data line D14 |
| Pin produk 52 | SD15 — ISA data line D15 |
| Pin produk 53 | IOR — ISA I/O read strobe, active low |
| Pin produk 54 | IOW — ISA I/O write strobe, active low |
| Pin produk 55 | MEMR — ISA memory read strobe, active low |
| Pin produk 56 | MEMW — ISA memory write strobe, active low |
| Pin produk 57 | REFRESH — ISA bus refresh signal, active low |
| Pin produk 58 | SYSCLK — ISA system clock input |
| Pin produk 59 | DRQ0 — ISA DMA request line 0 (default channel) |
| Pin produk 60 | DRQ1 — ISA DMA request line 1 (alternate) |
| Pin produk 61 | DRQ2 — ISA DMA request line 2 (alternate) |
| Pin produk 62 | DRQ3 — ISA DMA request line 3 (alternate) |
| Pin produk 63 | DACK0 — ISA DMA acknowledge, channel 0 |
| Pin produk 64 | DACK1 — ISA DMA acknowledge, channel 1 |
| Pin produk 65 | DACK2 — ISA DMA acknowledge, channel 2 |
| Pin produk 66 | DACK3 — ISA DMA acknowledge, channel 3 |
| Pin produk 67 | AEN — ISA address enable, active high |
| Pin produk 68 | BCLK — ISA bus clock (8.33 MHz typical) |
| Pin produk 69 | IRQ2 — ISA interrupt request 2 |
| Pin produk 70 | IRQ3 — ISA interrupt request 3 |
| Pin produk 71 | IRQ4 — ISA interrupt request 4 |
| Pin produk 72 | IRQ5 — ISA interrupt request 5 |
| Pin produk 73 | IRQ6 — ISA interrupt request 6 |
| Pin produk 74 | IRQ7 — ISA interrupt request 7 |
| Pin produk 75 | IRQ10 — ISA interrupt request 10 |
| Pin produk 76 | IRQ11 — ISA interrupt request 11 |
| Pin produk 77 | IRQ12 — ISA interrupt request 12 |
| Pin produk 78 | IRQ14 — ISA interrupt request 14 |
| Pin produk 79 | IRQ15 — ISA interrupt request 15 |
| Pin produk 80 | IO16 — ISA 16-bit I/O cycle indicator |
| Pin produk 81 | MEM16 — ISA 16-bit memory cycle indicator |
| Pin produk 82 | OWS — ISA zero-wait-state indicator, active low |
| Pin produk 83 | RDY — ISA channel ready, active high |
| Pin produk 84 | CS — Chip select (configurable), active low |
| Pin produk 85 | IOADDR0 — I/O base address strap 0 |
| Pin produk 86 | IOADDR1 — I/O base address strap 1 |
| Pin produk 87 | IOADDR2 — I/O base address strap 2 |
| Pin produk 88 | IOADDR3 — I/O base address strap 3 |
| Pin produk 89 | IOADDR4 — I/O base address strap 4 |
| Pin produk 90 | BOOT0 — Boot strap / test mode 0 |
| Pin produk 91 | BOOT1 — Boot strap / test mode 1 |
| Pin produk 92 | BOOT2 — Boot strap / test mode 2 |
| Pin produk 93 | BOOT3 — Boot strap / test mode 3 |
| Pin produk 94 | TEST — Factory test mode enable, active low (NC in normal use) |
| Pin produk 95 | XTAL1 — 20 MHz crystal oscillator input |
| Pin produk 96 | XTAL2 — 20 MHz crystal oscillator output |
| Pin produk 97 | LED0 — Status LED 0 driver output (active low) |
| Pin produk 98 | LED1 — Status LED 1 driver output (link/activity) |
| Pin produk 99 | LED2 — Status LED 2 driver output (collision) |
| Pin produk 100 | GND — Analog ground (for analog block) |
| Pin produk 101 | VCC — +5 V analog supply |
| Pin produk 102 | RXD+ — Receive data internal positive |
| Pin produk 103 | RXD- — Receive data internal negative |
| Pin produk 104 | TXD+ — Transmit data internal positive |
| Pin produk 105 | TXD- — Transmit data internal negative |
| Pin produk 106 | PLL_VCC — PLL +5 V supply, decoupled |
| Pin produk 107 | PLL_GND — PLL analog ground |
| Pin produk 108 | BIAS — Internal bias network node (external resistor to AVDD) |
| Pin produk 109 | REF — External 1% reference resistor for internal bias |
| Pin produk 110 | TPBIAS+ — Twisted-pair center-tap positive (to transformer) |
| Pin produk 111 | TPBIAS- — Twisted-pair center-tap negative (to transformer) |
| Pin produk 112 | RP — Receive polarity (link test) input |
| Pin produk 113 | TXE/RCV — Transmit enable / receive mode strap |
| Pin produk 114 | LOOPBACK — Loopback mode enable, active high |
| Pin produk 115 | POWERDOWN — Power-down mode, active high |
| Pin produk 116 | RESERVE — Reserved, do not connect |
| Pin produk 117 | NC — Not connected (per datasheet) |
| Pin produk 118 | NC — Not connected (per datasheet) |
| Pin produk 119 | NC — Not connected (per datasheet) |
| Pin produk 120 | NC — Not connected (per datasheet) |
| Pin produk 121 | NC — Not connected (per datasheet) |
| Pin produk 122 | NC — Not connected (per datasheet) |
| Pin produk 123 | GND — Digital ground |
| Pin produk 124 | VCC — +5 V supply |
| Pin produk 125 | EEDATA — EEPROM serial data |
| Pin produk 126 | EECLK — EEPROM serial clock |
| Pin produk 127 | EECS — EEPROM chip select |
| Pin produk 128 | EEEN — EEPROM enable / load strap |
| Pin produk 129 | JABBER — Jabber disable strap, active low |
| Pin produk 130 | LINK — Link integrity test enable strap |
| Pin produk 131 | BNC — BNC/coax mode select strap |
| Pin produk 132 | AUI_TPE — AUI / twisted-pair mode select strap |
Aplikasi Umum
DP83907VF cocok untuk 6 aplikasis: 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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk DP83907VF — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 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 |
Diferensiator Kunci
- Integrated ISA DMA bus-master eliminates external MAC + ISA glue logic (vsDP83848AFV)
- Pb-free terminal finish available for RoHS-compliant builds (vsDP83907VF (this part))
- Pin-for-pin drop-in within the DP83907 family keeps legacy ISA designs on a single footprint (vsDP83907CVF and DP83907ATVF)
Catatan Desain
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.
Informasi Konformitas
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.
