MC74HC74ADR2G

@@ -0,0 +1,58 @@+# MC74HC74ADR2G++**onsemi** · Flip Flops · SOIC-14++MC74HC74ADR2G from onsemi, in a SOIC-14. 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 | RESET1 | input | Asynchronous active-low reset for flip-flop 1. When low, forces Q1 low and Q1̄ high independent of clock. |+| 2 | DATA1 | input | D-input for flip-flop 1. Sampled on the rising edge of CLOCK1 and transferred to Q1. |+| 3 | CLOCK1 | input | Clock input for flip-flop 1. Rising edge transfers DATA1 to Q1. Max clock frequency 35 MHz at Vcc=6 V. |+| 4 | SET1 | input | Asynchronous active-low set for flip-flop 1. When low, forces Q1 high and Q1̄ low independent of clock. |+| 5 | Q1 | output | True (non-inverted) output of flip-flop 1. Drives 10 LSTTL loads. |+| 6 | ~Q1 | output | Complementary (inverted) output of flip-flop 1. |+| 7 | GND | power_in | Ground reference (0 V). |+| 8 | ~Q2 | output | Complementary (inverted) output of flip-flop 2. |+| 9 | Q2 | output | True (non-inverted) output of flip-flop 2. Drives 10 LSTTL loads. |+| 10 | SET2 | input | Asynchronous active-low set for flip-flop 2. When low, forces Q2 high and Q2̄ low independent of clock. |+| 11 | CLOCK2 | input | Clock input for flip-flop 2. Rising edge transfers DATA2 to Q2. |+| 12 | DATA2 | input | D-input for flip-flop 2. Sampled on the rising edge of CLOCK2 and transferred to Q2. |+| 13 | RESET2 | input | Asynchronous active-low reset for flip-flop 2. When low, forces Q2 low and Q2̄ high independent of clock. |+| 14 | VCC | power_in | Positive supply. 2.0 V to 6.0 V for HC; 4.5 V to 5.5 V for HCT variant. Absolute max 6.5 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOIC-14 |+| Category | Logic |+| Pins | 14 |++## Ordering variants++- `MC74HC74ADR2GDR2G`+- `MC74HC74ADR2GDG`+- `MC74HC74ADR2GDR2`+- `MC74HC74ADR2GD`+- `MC74HC74ADR2GDTR2G`+- `MC74HC74ADR2GDTG`++## CAD (KiCad official)++- Symbol: `MC74HC74ADR2G`+- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`+- 3D model: SOIC-14 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/mc74hc74a-d.pdf) (13 pp, sha256 `39ae893cd4838f9c`, retrieved 2026-08-17, tier: manufacturer)+- **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/mc74hc74adr2g-datasheet.pdf)

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