component
ATM90E36A-AU-R
Public Made by Adomby adom
Microchip Tech Energy Metering, TQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownATM90E36A-AU-R
Microchip Tech · Energy Metering · TQFP-48(7x7)
ATM90E36A-AU-R from Microchip Tech, in a TQFP-48(7x7). 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 | AVDD | power_in | Analog power supply 3.3V; must connect to DVDD and be decoupled with 0.1μF capacitor |
| 2 | AGND | power_in | Analog ground reference |
| 3 | I1P | input | Positive differential input for phase A current measurement from current transformer or Rogowski coil |
| 4 | I1N | input | Negative differential input for phase A current measurement; I1/I3 mapping can be swapped via I1I3Swap bit |
| 5 | I2P | input | Positive differential input for phase B current measurement from current transformer or Rogowski coil |
| 6 | I2N | input | Negative differential input for phase B current measurement |
| 7 | I3P | input | Positive differential input for phase C current measurement from current transformer or Rogowski coil |
| 8 | I3N | input | Negative differential input for phase C current measurement; I1/I3 mapping can be swapped via I1I3Swap bit |
| 9 | I4P | input | Positive differential input for neutral line current measurement from current transformer or Rogowski coil |
| 10 | I4N | input | Negative differential input for neutral line current measurement |
| 11 | Vref | power_in | 1.2V reference voltage output for 1Mhz energy accumulation; must be decoupled with 10μF, 0.1μF and 1nF capacitors |
| 12 | AGND | power_in | Analog ground reference |
| 13 | V1P | input | Positive differential input for phase A voltage measurement from resistor divider or potential transformer |
| 14 | V1N | input | Negative differential input for phase A voltage measurement |
| 15 | V2P | input | Positive differential input for phase B voltage measurement from resistor divider or potential transformer |
| 16 | V2N | input | Negative differential input for phase B voltage measurement |
| 17 | V3P | input | Positive differential input for phase C voltage measurement from resistor divider or potential transformer |
| 18 | V3N | input | Negative differential input for phase C voltage measurement |
| 19 | DGND | power_in | Digital ground reference |
| 20 | OSCI | input | External crystal oscillator input for 16.384 MHz crystal with integrated on-chip load capacitors |
| 21 | OSCO | output | External crystal oscillator output for 16.384 MHz crystal with integrated on-chip load capacitors |
| 22 | ZX0 | output | Zero-crossing detection output asserted when voltage or current crosses zero; source and mode configured by ZXConfig register |
| 23 | ZX1 | output | Zero-crossing detection output asserted when voltage or current crosses zero; source and mode configured by ZXConfig register |
| 24 | ZX2 | output | Zero-crossing detection output asserted when voltage or current crosses zero; source and mode configured by ZXConfig register |
| 25 | CF1 | output | All-phase-sum total active energy pulse output with programmable pulse width regulation per CFx pulse configuration |
| 26 | CF2 | output | All-phase-sum reactive or apparent energy pulse output; output determined by CF2varh and CF2ESV configuration bits |
| 27 | CF3 | output | All-phase-sum total active fundamental energy pulse output with pulse width regulation |
| 28 | CF4 | output | All-phase-sum total active harmonic energy pulse output with pulse width regulation |
| 29 | WarnOut | output | Fatal error warning output asserted high when metering parameter checksum error detected, otherwise stays low |
| 30 | IRQ0 | output | Interrupt output 0 asserted when SysStatus0 register events occur; used for current detector output in Detection mode |
| 31 | IRQ1 | output | Interrupt output 1 asserted when SysStatus1 register events occur; used for current detector output in Detection mode |
| 32 | TEST | input | Test pin; must be always connected to DGND in system application |
| 33 | PM0 | input | Power mode configuration input bit 0; with PM1 defines Normal, Partial Measurement, Detection, or Idle mode |
| 34 | PM1 | input | Power mode configuration input bit 1; with PM0 defines Normal, Partial Measurement, Detection, or Idle mode |
| 35 | NC | unconnected | No connect; leave open |
| 36 | DMA_CTRL | input | DMA enable control input; assert to start DMA burst transfer, deassert to stop at end of current sample |
| 37 | CS | bidirectional | Chip select (active low) for SPI transactions; driven from high to low and maintained low for entire operation |
| 38 | SCLK | bidirectional | Serial clock for SPI/DMA interface; input in SPI slave mode, output in DMA master mode |
| 39 | SDO | tri_state | Serial data output for SPI slave mode and input for DMA master mode; LVTTL with 5mA output drive |
| 40 | SDI | bidirectional | Serial data input for SPI slave mode and output for DMA master mode; LVTTL bidirectional pin |
| 41 | RESET | input | Reset input (active low) with internal 2μs RC filter and de-glitch filter; connect via 0.1μF capacitor and 10kΩ resistor to VDD |
| 42 | VDD18 | power_in | 1.8V regulated digital power supply output; must connect with pin 43 and be decoupled with 10μF capacitor |
| 43 | VDD18 | power_in | 1.8V regulated digital power supply output; must connect with pin 42 and be decoupled with 10μF capacitor |
| 44 | DGND | power_in | Digital ground reference |
| 45 | NC | unconnected | No connect; leave open |
| 46 | NC | unconnected | No connect; leave open |
| 47 | DGND | power_in | Digital ground reference |
| 48 | DVDD | power_in | 3.3V digital power supply; must be decoupled with 10μF and 0.1μF capacitors |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TQFP-48(7x7) |
| Category | Data Acquisition |
| Pins | 48 |
CAD (KiCad official)
- Symbol:
ATM90E36A-AU-R - Footprint:
Package_QFP:TQFP-48_7x7mm_P0.5mm - 3D model: TQFP-48(7x7) (KiCad packages3D, STEP)
- 3D model files:
atm90e36a-au-r-etched.step/atm90e36a-au-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);atm90e36a-au-r.step/atm90e36a-au-r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (87 pp, sha256
9aedf3545327238a, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).