# TLC7733QDR

**Texas Instruments** · Supervisor And Reset ICs · SOIC-8

TLC7733QDR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | CONTROL | input | Control input for RESET/RESET logic, tied to the memory bank select for SRAM battery backup; input high level ≥0.7×VDD and low level ≤0.2×VDD. |
| 2 | RESIN | input | Active-low reset input that forces the reset outputs active; input high level ≥0.7×VDD and low level ≤0.2×VDD. |
| 3 | CT | passive | Delay-time capacitor connection; td = 2.1×10^4 × CT with CT in farads and td in seconds. |
| 4 | GND | power_in | Ground. |
| 5 | RESET | output | Active-low totem-pole reset output, active while SENSE is below threshold and during the delay time td. |
| 6 | RESET | output | Active-high totem-pole reset output, active while SENSE is below threshold and during the delay time td. |
| 7 | SENSE | input | Voltage sense input compared with the negative-going threshold VIT- (2.93 V typical for TLC7733); input range −0.3 V to 7 V. |
| 8 | VDD | power_in | Supply voltage, 2 V to 6 V recommended operating range, 7 V absolute maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `TLC7733QDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tlc7733qdr-etched.step` / `tlc7733qdr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tlc7733qdr.step` / `tlc7733qdr.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tlc77) (38 pp, sha256 `3147b2830d2531af`, retrieved 2026-10-10, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (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).

[Datasheet PDF](docs/tlc7733qdr-datasheet.pdf)