Remote Keyless Entry (RKE)
A remote keyless entry (RKE) system is designed to lock and unlock vehicle doors remotely. When a driver pushes a button on a key fob, a transmitter in it emits an modulated RF signal. A vehicle's on-board receiver demodulates the RF signal and provides the demodulated data to a microcontroller.
RKE System Block Diagram
Recommended Products
| Part Number | Intended Use | Applications | TX/ RX | Frequency(Hz) | FSK | ASK | Package | Status | |
|---|---|---|---|---|---|---|---|---|---|
| RF | IF(BW) | ||||||||
| TA31273FNG(*) | Remote controls | Extremely low-power radio | RX | 315 M/ 434 M |
10.7 MHz | Y | SSOP20 | MP | |
| TA31275FNG(*) | Remote controls | Extremely low-power radio | RX | 315 M/ 434 M |
10.7 MHz | Y | Y | SSOP24 | MP |
| TB31370FNG | RKE/ TPMS | Extremely low-power radio | RX | 315 M | 220 kHz (BW=300 kHz) | Y | Y | SSOP24 | MP |
| TB31371FNG | RKE/ TPMS | Extremely low-power radio | RX | 434 M | 220 kHz (BW=300 kHz) |
Y | Y | SSOP24 | MP |
| TB31372FNG | RKE/ TPMS | Extremely low-power radio | RX | 315 M | 220 kHz (BW=300 kHz) |
Y | Y | SSOP24 | MP |
| TB31373FNG | RKE/ TPMS | Extremely low-power radio | RX | 434 M | 220 kHz (BW=300 kHz) |
Y | Y | SSOP24 | MP |
| TA32305FNG(*) | Remote controls | Extremely low-power radio | TX/ RX | 315 M/ 434 M |
80 kHz (BW=80 kHz) |
Y | Y | SSOP30 | MP |
| TC32306FTG | RKE/ TPMS | Extremely low-power radio | TX/ RX | 315 to 915 M |
230 kHz / 280 kHz (BW= 320 kHz / 260 kHz) |
Y | Y | QFN36 | D |
| TB32302FG(*) | Telemeters | Specified low-power radio | TX/ RX | 426 M/429 M | 1st 21.7 MHz 2nd 455 kHz |
Y | Y | QFP52 | MP |
MP: Mass production / D: Under development
* Intended for consumer applications. Contact Toshiba if you want to use this device for automotive applications.
| Part Number | ROM | RAM | Key Features | Package | Status |
|---|---|---|---|---|---|
| TMP89FM46KDUG(*)/ TMP89FM46LDUG(*) |
32 Kbytes | 2048 bytes | 10-bit AD converter (8 channels) UART/SIO (1 channel) I2C/SIO (1 channel) UART (1 channel) 8-bit timer (4 channels) 16-bit timer (2 channels) Watchdog timer Voltage detection circuit Power-on reset circuit |
LQFP48 | MP |
| TMP92CD54IFG/ TMP92FD54AIFG |
512 Kbytes | 32768 bytes | 10-bit AD converter (12 channels) UART/SIO (2 channels) I2C/SIO (3 channels) SEI (1 channel) 8-bit timer (8 channels) 16-bit timer (2 channels) Watchdog timer |
LQFP100 | D |
MP: Mass production / D: Under development
* Intended for consumer applications. Contact Toshiba if you want to use this device for automotive applications.
| Part Number | Function | Output Voltage | Input Voltage | Key Features | Package | Status |
|---|---|---|---|---|---|---|
| TB9000FG | Automotive CPU voltage regulator with a watchdog timer | 5 V | 4 5 V | Low current consumption: 120 µA Watchdog timer enable/disable Reset detection at 4.7 V External transistor required |
SSOP16 | MP |
| TB9001FNG | Automotive CPU voltage regulator with a watchdog timer | 5 V | 45 V | Low current consumption: 95 µA Internal 32-kHz clock External transistor required |
SSOP20 | MP |
| TB9004FNG | Automotive CPU dual voltage regulator with a watchdog timer | 5 V | 45 V | Low current consumption: 0 µA typ. (VCC1 / VCC2: OFF) Selectable from 3.4 V, 2.5 V and 1.5 V Two reset pins External transistor required |
SSOP24 | MP |
MP: Mass production
Product Introduction
* System and product names mentioned herein may be trademarks or registered trademarks of respective companies or organizations.