ctm1051m

@@ -0,0 +1,50 @@+# CTM1051M++**YLPTEC** · CAN Bus Modules · DIP-7++CTM1051M from YLPTEC, in a DIP-7. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | RXD | output | Receive data output to the host CAN controller. Push-pull logic output referenced to VCC (5V); VOH ≥ VCC-0.4V, VOL ≤ 0.4V at IRXD = 4 mA. Drives a dominant-low / recessive-high signal to the MCU's CAN RX pin. |+| 2 | TXD | input | Transmit data input from the host CAN controller. 5V logic input: VIH ≥ 0.7·VCC, VIL ≤ 0.3·VCC; input drive current ITXD ≈ 2 mA. A low level drives the bus dominant; high level allows recessive. Dominant-timeout protection Tto(dom) 0.3-12 ms (typ 1 ms). Does not accept 3.3V logic - use CTM1051AM for 3.3V systems. |+| 3 | GND | power_in | Logic-side (input) power return. Reference ground for VCC, TXD and RXD. Galvanically isolated from the bus-side CANG return by 2500VDC (test 3500VDC). |+| 4 | VCC | power_in | Logic-side supply input, 5 V nominal (4.75-5.25 V, abs max 7 V, min -0.7 V). Powers the on-board isolated DC-DC as well as the transceiver logic side. Typical quiescent 35 mA, max operating 90 mA. No reverse-polarity protection - do not reverse VCC/GND. |+| 5 | CANG | power_out | Isolated-side return (bus-side ground) generated by the internal isolated DC-DC. Used as the local reference for CANH/CANL and as the tie point for shielded-twisted-pair inner shield in double-shield installations. Leave floating if not used (per §8.2). |+| 6 | CANL | bidirectional | CAN bus low-side differential line, ISO 11898-2 compliant. Dominant V(OD)CANL 0.5-2.25 V (typ 1.5 V), recessive V(OR)CANL 2-3 V (typ 2.5 V). Bus pin absolute range -58 V to +58 V, transient -150 V to +100 V. Connect to the CANL wire of the twisted pair; terminate the network with 120 Ω between CANH and CANL at each end. |+| 7 | CANH | bidirectional | CAN bus high-side differential line, ISO 11898-2 compliant. Dominant V(OD)CANH 2.75-4.5 V (typ 3.5 V), recessive V(OR)CANH 2-3 V (typ 2.5 V). Bus pin absolute range -58 V to +58 V, transient -150 V to +100 V. Connect to the CANH wire of the twisted pair; terminate the network with 120 Ω between CANH and CANL at each end. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | YLPTEC |+| Package | DIP-7 |+| Category | IoT/Communication Modules |+| Pins | 7 |++## Ordering variants++Same part, different packaging or reel option.++- `CTM1051M`+- `CTM1051AM`++## CAD (KiCad official)++- Symbol: `CTM1051M`+- Footprint: `Package_DIP:DIP-8-N6_W7.62mm`+- 3D model: DIP-7 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [YLPTEC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904846956777472) (5 pp, sha256 `8cbffb30decdc8a1`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/ctm1051m-datasheet.pdf)

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