PCF7946AT Datasheet – Security Transponder – Philips

Part Number : PCF7946AT

Function : Security Transponder and Remote Keyless Entry Chip

Package : 14-pin SO type

Manufactures : Philips Semiconductor, NXP

Image

PCF7946AT datasheet

Description

The HITAG2 is a high performance monolithic Security Transponder and Remote Keyless Entry Chip ideally suited for car immobiliser applications that incorporate keyless entry functions.

Features

1. Compatible with Security Transponder, PCF7936AS.
2. Rolling Code Generator for keyless entry
3. 14-pin SO package

Transponder

1. 64/32 bit mutual authentication
2. 32 bit unique device identification number
3. Fast authentication, 39ms
4. 48 bit Secret Key
5. 128 bit user memory (EEPROM)
6. EEPROM read/write in cipher mode
7. EEPROM read/write protection capability
8. Excellent sensitivity in read and write mode

Code Hopping Generator

1. Four user buttons (15 + 1 commands)
2. LED acknowledgment of transmission
3. 42 bit unidirectional code hopping
4. 48 bit Remote Secret Key
5. 114 bit message with run-in, device identification, function code, terminator and parity bits
6. Automatic code synchronisation via transponder
7. Programmable data rate and frame repetition rate
8. Clock input to support external data rate reference
9. Manchester encoding
10. Low tolerance on-chip RC oscillator (< ±10%)
11. Battery low indication
12. Single cell operation (2.0V to 3.6V)
13. Low power consumption (ACTIVE: 0.3 mA, POWER DOWN: 300 nA)

 

PCF7946AT Datasheet

 

TMP86CS49FG Datasheet PDF

Part Number : TMP86CS49FG

Function : 8 Bit Microcontroller

Manufacturers : Toshiba

Pinouts :

TMP86CS49FG datasheet

Description :

1. 8-bit single chip microcomputer TLCS-870/C series
– Instruction execution time :
0.25 µs (at 16 MHz)
122 µs (at 32.768 kHz)
– 132 types & 731 basic instructions

2. 24interrupt sources (External : 5 Internal : 19)

3. Input / Output ports (56 pins)
Large current output: 13pins (Typ. 20mA), LED direct drive

4. Watchdog Timer

5. Prescaler
– Time base timer
– Divider output function

6. 16-bit timer counter: 1 ch
– Timer, External trigger, Window, Pulse width measurement,
  Event counter, Programmable pulse generate (PPG) modes

TMP86CS49FG Datasheet PDF Download

TMP86CS49FG pdf

Other data sheets within the file :
TMP86CS49FG,TMP86FS49AFG