PT2272-M4 Remote Control Decoder IC DIP-18
The PT2272-M4 is a CMOS remote-control decoder IC designed to pair with PT2262 encoders to receive and decode serial address/data code words. It focuses on reliability and simplicity: address pins accept tri-state settings so systems can use many unique codes, and the device validates incoming frames before enabling outputs. The M4 variant provides four momentary data outputs, making it suitable for small control tasks where each button press should only activate outputs while the signal is present.
Internally the PT2272 decodes 12 AD bits (address + data) followed by a sync bit, compares the decoded address to the pin-set address, and after two consecutive matching frames drives the appropriate data outputs and raises a VT (Valid Transmission) flag. Oscillation timing is set with a single external resistor, so the decoder can be matched to PT2262-based encoders without complex clock circuitry. The momentary output behavior ensures outputs reset automatically when transmissions stop.
Physically the M4 is offered in an 18-pin DIP (300 mil) package and follows standard pinouts for DIN, OSC1/OSC2, VT, VCC and VSS; its operating voltage range and electrical limits make it straightforward to drop into battery-powered or mains-powered remote systems. Typical uses include small home-automation receivers, toys, and garage-type controllers where short, robust remote pulses control actuators.
Features:
- CMOS technology.
- Low power consumption.
- Very high noise immunity.
- Up to 12 tri-state code address pins.
- Up to 6 data pins (M4 provides 4 data pins).
- Wide operating voltage range: VCC = 4 ~ 15 V.
- Single-resistor oscillator.
- Latch or momentary output types available (M4 = momentary).
- Available in DIP and SOP packages.
Specifications:
| Specification | PT2272-M4 |
|---|---|
| Part / Version: | PT2272-M4 — 18-pin DIP, 4 data outputs, momentary type. |
| Address pins: | 12 tri-state address pins (A0–A11). |
| Data outputs: | 4 momentary data pins (D3–D0 for M4). |
| Supply voltage (recommended): | VCC = 4 V to 15 V. |
| Absolute max ratings: | VCC: −0.3 to 16.0 V; input/output: −0.3 to VCC+0.3 V; Topr: −40 to +85 ℃. |
| Standby current: | Typ ~0.1 μA (OSC1=0V, VCC=12V; DIN=0V). |
| Output drive / sink: | IOH: −3 mA (VCC=5V, VOH=3V) typ; IOL: 2 mA (VCC=5V). Detailed table in datasheet. |
| Oscillator: | Single-resistor oscillator; recommended resistor values listed (e.g., ~1 MΩ for IR match). |
| Valid-transmission logic: | Requires 2 consecutive matching code words to assert VT and outputs. |
| Package / footprints: | DIP-18 (300 mil) and SOP options with JEDEC dimensions. |
Pinout Diagram:
Footprint Diagram:
Applications:
- Car security systems.
- Garage door controllers.
- Remote-control fans.
- Home security / automation systems.
- Remote-control toys.
- Remote control for industrial use.
Package Contents:
- 1x PT2272-M4 Remote Control Decoder IC DIP-18
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