Datasheet > EM4170A5WT11E

EM4170A5WT11E

更新时间： 2024-11-13 03:04:51

品牌	Logo	应用领域
EMMICRO		装置
页数	文件大小	规格书
13页	144K
描述
125kHz CRYPTO READ/WRITE Contactless Identification Device

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EM4170A5WT11E 数据手册

EM MICROELECTRONIC - MARIN SA

EM4170

125kHz CRYPTO READ/WRITE Contactless Identification Device

Description

Features

The EM4170 is a CMOS integrated circuit intended for

use in electronic Read/Write RF Transponders. The chip

contains an implementation of a crypto-algorithm with 96

Bits of user configurable secret-key contained in

EEPROM. It also provides a unique Device Identification

of 32 bits that can never be modified as well as 94 bits of

freely programmable USER-MEMORY. Bits 15 and 14

of word 1 are used as Lock-Bits. The memory can only

be accessed for writing or erasing if these two bits have

the contents "x0" as when they are delivered.

•

On Chip Crypto-Algorithm

Two Way Authentication

96 bits of Secret-Key in EEPROM (unreadable)

32 bits of fix Device Identification

32 bits of PIN code (unreadable)

94 bits of USER_MEMORY (UM) with read access

(OTP)

•

Secret-Key programmable via CID-Interface

Lock-Bits to inhibit programming

Data Transmission performed by Amplitude

Modulation

The memory can be unlocked by using the PIN-code

command. In that case, the lock-bits are reset from the

value "x1" to the value "x0".

•

Bit Period = 32 periods of carrier frequency

200pF on chip Resonant Capacitor (untrimmed)

-40 to +85°C Temperature range

100 kHz to 150 kHz Field Frequency

On chip Rectifier and Voltage Limiter

No external supply buffer capacitance needed due

to low power consumption

The EM4170 transmits data to the transceiver by

modulating the amplitude of the electromagnetic field,

and receives data and commands in a similar way.

The coil of the tuned circuit is the only external

component required, all remaining functions are

integrated in the chip.

Typical Applications

•

Anti-counterfeiting

High security hands-free access control

Typical Operating Configuration

COIL1

COIL2

EM4170

Typical value for inductance L is 8mH at f_O= 125 KHz

Fig. 1

www.emmicroelectronic.com

12 3 4 5 6 7...13

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与EM4170A5WT11E相关器件

型号	品牌	获取价格	描述	数据表
EM4170A5WW11	EMMICRO	获取价格	125kHz CRYPTO READ/WRITE Contactless Identification Device
EM4170A5WW11E	EMMICRO	获取价格	125kHz CRYPTO READ/WRITE Contactless Identification Device
EM4200	EMMICRO	获取价格	128 bit Read Only Low Frequency Contactless Identification Device
EM4200A6WB11E-051	EMMICRO	获取价格	128 bit Read Only Low Frequency Contactless Identification Device
EM4200A6WS7-001	EMMICRO	获取价格	128 bit Read Only Low Frequency Contactless Identification Device
EM4200B5WS7-006	EMMICRO	获取价格	128 bit Read Only Low Frequency Contactless Identification Device
EM4200C4WS7-002	EMMICRO	获取价格	128 bit Read Only Low Frequency Contactless Identification Device
EM4200C4WS7-008	EMMICRO	获取价格	128 bit Read Only Low Frequency Contactless Identification Device
EM4200EXWS7-003	EMMICRO	获取价格	128 bit Read Only Low Frequency Contactless Identification Device
EM4205	EMMICRO	获取价格	512 bit Read/Write Multi-purpose Contactless Identification Device

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