- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381499 > AT88RF256-12 (Atmel Corp.) 125 kHz RFID Chip for Cards and Tags PDF資料下載
參數(shù)資料
| 型號(hào)： | AT88RF256-12 |
| 廠商： | Atmel Corp. |
| 英文描述： | 125 kHz RFID Chip for Cards and Tags |
| 中文描述： | 125千赫RFID芯片的卡和標(biāo)簽 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 190K |
| 代理商： | AT88RF256-12 |
AT88RF256-12
6
Data Transmission Protocol (Bit rate equals 16 clocks per bit)
Data Reception Protocol
Two rates for data and/or commands received by the chip
are supported. Data is received at either 2x or 4x the trans-
mission rate, selectable by using the RCLK_GEN option
bit. Over the range of possible TCLK_GEN values, this
translates into a range of 32 cycles/bit to 4096.
All data and commands received by the chip must be
Manchester encoded by the reader/writer. The part is capa-
ble of detecting incoming data at amplitude changes
(modulation depth) greater than 15%. At deep modulation
levels, the chip may reset at far field during modulation
intervals.
There is no delay between the last bit of the command
transmitted by the reader/writer to the chip and the first
data bit sent on a write command. After a read command,
the chip will wait one receive bit time to ensure that there is
no more modulation, and will then commence with the
transmission of the read data.
For incoming modulation, a bit time, in which there is low
field strength in the first half of the bit time and high field
strength in the second half, is interpreted as a logic 0. High
field strength in the first half of the bit time, and low field
strength in the second half is interpreted as a logic 1.
Reset Voltage
The chip includes a precision voltage reference to ensure
that all write commands are only performed when the
power supply voltage on the chip is above a required level
of 2.0V. ID reads and the
“
read
”
and
“
disable
”
commands
will take place regardless of voltage (above a minimal POR
level), which will result in correct information in most cases.
Data transmitted at the lowest voltages may not be valid;
therefore, some sort of error detection and/or correction
(multiple reads, parity, hamming code, etc.) must be imple-
mented by the system.
NRZ DATA
MANCHESTER
(BI-PHASE)
MILLER
PSK2
MANCHESTER
SUBCARRIER
BIT
5
BIT
4
BIT
3
BIT
2
BIT
1
BIT
0
0
1
1
1
0
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT88SC0104C-MJ | Circular Connector; Body Material:Aluminum; Series:PT02; Number of Contacts:5; Connector Shell Size:18; Connecting Termination:Solder; Circular Shell Style:Box Mount Receptacle; Circular Contact Gender:Pin; Insert Arrangement:18-5 |
| AT88SC0104C-MP | PT02A SERIES (MS3112) GENERAL DUTY BOX MOUNT RECEPTACLES, STRAIGHT BODY STYLE, SOLDER TERMINATION, 20 SHELL SIZE, 20-16 INSERT ARRANGEMENT, RECEPTACLE GENDER, 16 CONTACTS |
| AT88SC0104C-PI | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT02; Number of Contacts:24; Connector Shell Size:20; Connecting Termination:Solder; Circular Shell Style:Box Mount Receptacle |
| AT88SC0104C-PU | CRYPTOMEMORY 1KBIT |
| AT88SC0104C-SI | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT02; No. of Contacts:25; Connector Shell Size:20; Connecting Termination:Solder; Circular Shell Style:Box Mount Receptacle |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT88SA100S | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Atmel CryptoAuthentication Battery Authentication Chip |
| AT88SA100S_11 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Atmel CryptoAuthentication Battery Authentication Chip |
| AT88SA100S-SH-CZ-T | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Atmel CryptoAuthentication Battery Authentication Chip |
| AT88SA100S-SH-T | 功能描述:電池管理 58951-Eb CryptoAuth SHA-256 BattIC GRN RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| AT88SA100S-TH-CZ-T | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Atmel CryptoAuthentication Battery Authentication Chip |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。