TIR1000IPWR - Standalone IrDA Encoder/Decoder | TI | 8-TSSOP
部品番号: TIR1000IPWR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 10 | $1.28 | $12.80 |
| 100 | $1.07 | $107.00 |
| 500 | $0.93 | $465.00 |
| 1,000 | $0.82 | $820.00 |
| 2,500 | $0.71 | $1,775.00 |
TIR1000IPWR 概要
An IrDA encoder/decoder is a specialized interface IC that sits between a host microcontroller's UART and an external infrared transceiver (typically a PIN photodiode + LED pair). It performs the bit-stuffing and pulse-width modulation required by the IrDA physical layer so the host CPU only sees a transparent serial stream; the broader category belongs to interface ICs in the connectivity hierarchy (interface IC > transceiver > encoder/decoder).
Key features include 1200-bps to 115.2-kbps IrDA 1.0 / HPSIR compliance, single 2.7 V to 5.5 V supply, direct UART handshake interface, low-power shutdown mode, and CMOS construction. The TIR1000IPWR adds an infrared port to any standard UART, eliminating the need for bit-banging IR protocols in firmware and offloading real-time pulse-width timing from the host MCU.
The architecture uses a baud-rate generator derived from an external 16x clock (typically the UART's reference), a transmit pulse shaper that converts the UART TX bit stream into 3/16-width IR pulses, and a receive decoder that recovers the UART RX stream from the demodulated IR input. Because it is a pure logic encoder (no onboard LED driver), the host must add a discrete IR transceiver module (e.g., a TFDU4100 / HSDL-3201 class device) to drive the optical front end.
Typical applications include IrDA ports on PDAs, industrial handhelds, medical data terminals, point-of-sale (POS) equipment, and consumer electronics printers. The wide supply range and 8-pin TSSOP package make it suitable for space-constrained designs that need to retrofit IrDA onto an existing UART.
A key design consideration is clock sourcing. The TIR1000IPWR requires a 16x baud-rate reference clock (XCLK), which is normally derived from the host UART's baud-rate generator; if the host baud rate changes, XCLK must be reprogrammed accordingly. The IC does not include the optical transceiver, so a separate IrDA transceiver module must be added externally.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for IrDA encoder/decoder selection.
ドロップイン代替品: TIR1000IPWR — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
TIR1000IPW
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TIR1000IPWRG4
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TIR1000PWR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TIR1000IPWR 仕様
| 機能 | Standalone IrDA SIR Encoder/Decoder |
| データレート | 1.2 kbps to 115.2 kbps |
| Supply Voltage (VCC) | 2.7 V to 5.5 V |
| 動作温度 | -40 C to +85 C |
| Standards Compliance | IrDA 1.0 SIR, HPSIR |
| インターフェース | UART (TX/RX/RTS/CTS) |
| Pulse Modulation | 3/16 optical pulse width (IrDA standard) |
| パッケージ | TSSOP-8 (PW) |
| Package Size | 3.0 mm x 4.4 mm |
| 実装タイプ | Surface Mount |
| MSLレベル | 1 (unlimited floor life at <30 C / 85% RH) |
| Lead-Free / RoHS | Yes - RoHS compliant |
| Process Technology | CMOS |
TIR1000IPWR ピン構成
| ピン 1 | VCC — Supply voltage input (2.7 V to 5.5 V) |
| ピン 2 | XCLK — External 16x baud-rate reference clock input |
| ピン 3 | SD — Shutdown mode select (active high) |
| ピン 4 | RXD — UART receive data output to host |
| ピン 5 | TXD — UART transmit data input from host |
| ピン 6 | IRRX — Demodulated IR receive signal input from transceiver |
| ピン 7 | IRTX — Modulated IR transmit signal output to transceiver |
| ピン 8 | GND — Ground |
主な用途
TIR1000IPWR の用途: 6 件s: Industrial Handheld IrDA Port, Medical Data Terminal, POS and Barcode Scanner Interface, Consumer Printer IrDA Port, Industrial Test and Measurement Logger, Legacy Embedded System IrDA Retrofit.
Industrial Handheld IrDA Port
Adds an IrDA-compliant serial infrared port to industrial handheld data terminals used in warehouses, factories, and field service. The TIR1000IPWR's 1.2 kbps to 115.2 kbps IrDA SIR data rate and -40 C to +85 C industrial temperature range match the requirements of cold-storage and outdoor-construction environments. It connects between the MCU UART and an external transceiver module such as the TFDU4100 or HSDL-3201, providing 3/16 pulse modulation transparently so the host firmware treats it as a standard serial stream. This saves the MCU from real-time IR pulse generation, freeing cycles for the actual application logic.
おすすめ
Medical Data Terminal
Provides IrDA connectivity for medical data terminals that exchange patient records with legacy hospital information systems. The TIR1000IPWR's industrial temperature range and low-power CMOS design suit battery-powered bedside terminals, while its 2.7 V to 5.5 V supply range enables direct connection to common 3.3 V and 5 V MCUs without level shifting. The device's transparent UART interface lets medical firmware treat the IrDA link as a standard serial port, accelerating time-to-certification for FDA-regulated workflows where IrDA remains a compliance requirement.
おすすめ
POS and Barcode Scanner Interface
Bridges an IrDA port to point-of-sale terminals and handheld barcode scanners that print receipts or transfer data to legacy cradles. The TIR1000IPWR supports up to 115.2 kbps - sufficient for typical transaction bursts and scanner calibration files - while its CMOS architecture draws minimal current between bursts, extending battery life on portable POS hardware. Its 8-pin TSSOP package footprint fits into the tight PCB layout of a scanner handle, and pairing it with a Vishay TFDU4100-class transceiver delivers a complete IrDA 1.0 link.
おすすめ
Consumer Printer IrDA Port
Adds wireless IrDA printing to legacy consumer printers and label makers that still require IrDA 1.0 SIR compliance. The TIR1000IPWR's wide 2.7 V to 5.5 V supply range supports direct connection to either 3.3 V or 5 V printer mainboards, while its 8-pin TSSOP fits into existing printer controller boards without layout changes. The host MCU simply writes to the UART as if it were a wired serial port, with the TIR1000PWR handling all IrDA 3/16 pulse timing transparently.
おすすめ
Industrial Test and Measurement Logger
Adds IrDA wireless data download to portable test and measurement instruments such as multimeters, oscilloscopes, and process calibrators. The TIR1000IPWR's -40 C to +85 C industrial range handles harsh factory and outdoor environments, while its CMOS low-power operation preserves battery life during long field campaigns. Its transparent UART interface allows the instrument firmware to log measurements to local storage and then transmit them via IrDA to a host laptop without protocol overhead in the application layer.
おすすめ
Legacy Embedded System IrDA Retrofit
Retrofit IrDA functionality onto legacy embedded systems that already have a UART but no native IrDA support. The TIR1000IPWR's small 8-pin TSSOP package and 2.7 V to 5.5 V supply range allow it to be added as a sidecar IC alongside an existing MCU with minimal PCB rework. Engineers can drop the TIR1000IPWR between the existing UART lines and an external transceiver module to instantly add IrDA SIR 1.2-115.2 kbps connectivity without rewriting host firmware.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: TIR1000IPWR — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | TIR1000IPW | TIR1000IPWRG4 | TIR1000PWR |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | TSSOP-8 (PW) | TSSOP-8 (PW) - same | TSSOP-8 (PW) - same | TSSOP-8 (PW) - same |
| Function | IrDA SIR Encoder/Decoder | IrDA SIR Encoder/Decoder | IrDA SIR Encoder/Decoder | IrDA SIR Encoder/Decoder |
| Data Rate | 1.2 kbps to 115.2 kbps | 1.2 kbps to 115.2 kbps | 1.2 kbps to 115.2 kbps | 1.2 kbps to 115.2 kbps |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | 0 C to +70 C (commercial) |
| Carrier Format | Tape and Reel (R) | Tray (no R suffix) | Tape and Reel (R), G4 die rev | Tape and Reel (R), commercial temp |
| Standards Compliance | IrDA 1.0 SIR, HPSIR | IrDA 1.0 SIR, HPSIR | IrDA 1.0 SIR, HPSIR | IrDA 1.0 SIR, HPSIR |
主な差別化要因
- Drop-in same-package variant with wider commercial availability （vs TIR1000IPW)
- Industrial-temperature G4 die variant with full -40C to +85C range （vs TIR1000PWR)
- G4 die revision marking for traceability in regulated industries （vs TIR1000IPW)
設計ノート
The TIR1000IPWR is a logic-only IrDA encoder/decoder and does NOT include the optical LED driver or photodiode receiver. A separate IrDA transceiver module (e.g., Vishay TFDU4100, Lite-On HSDL-3201) must be added between the TIR1000IPWR's IRTX/IRRX pins and the actual LED/photodiode. Skipping this module will result in no optical output, even if the TIR1000IPWR appears to be functioning correctly.
The XCLK pin requires a 16x baud-rate reference clock whose frequency tracks the host UART's baud-rate generator. If the host changes baud rate at runtime, XCLK must be reprogrammed accordingly or the receive decoder will lose lock. Tie SD (pin 3) high through a 100 kohm pull-up to VCC if shutdown mode is unused, to prevent floating-pin glitches that could corrupt IRTX output.
Place the TIR1000IPWR's VCC bypass capacitor (100 nF ceramic, plus optional 1 uF to 10 uF bulk) within 5 mm of pin 1 (VCC). Keep the IRTX/IRRX traces short and routed away from switching nodes (DC-DC converters, clock lines) to avoid capacitive coupling that would degrade the 3/16 pulse edges. Provide a ground plane under the IC and the connecting traces to the external transceiver module.
コンプライアンス情報
RoHS compliant and lead-free per TI product page. AEC-Q100 not applicable - this is a commercial/industrial interface IC, not an automotive-grade part.
