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PDF ATA5570 Data sheet ( Hoja de datos )
| Número de pieza | ATA5570 | |
| Descripción | Multifunctional 330-bit Read/Write RF Sensor Identification IC | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
• Contactless Read/Write Data Transmission
• Sensor Input RS > 100 kΩ (Typical) => Data Stream Inverted
• Radio Frequency fRF from 100 kHz to 150 kHz
• e5550 Binary Compatible or ATA5570 Extended Mode
• Small Size, Configurable for ISO/IEC 11784/785 Compatibility
• 7 x 32-bit EEPROM Data Memory Including 32-bit Password
• Separate 64-bit Memory for Traceability Data
• 32-bit Configuration Register in EEPROM to Setup
– Data Rate
• RF/2 to RF/128, Binary Selectable or
• Fixed e5550 Data Rates
– Modulation/Coding
• FSK, PSK, Manchester, Bi-phase, NRZ
– Other Options
• Password Mode
• Maximum Block Feature
• Answer-On-Request (AOR) Mode
• Inverse Data Output
• Direct Access Mode
• Sequence Terminator(s)
• Write Protection (Through Lock-bit per Block)
• Fast Write Method (5 Kbps versus 2 Kbps)
• OTP Functionality
• POR Delay up to 67 ms
Multifunctional
330-bit
Read/Write RF
Sensor
Identification IC
ATA5570
Preliminary
1. Description
The ATA5570 is a contactless R/W IDentification IC (IDIC®) for applications in the
125 kHz frequency range. A single coil, connected to the chip, serves as the IC's
power supply and bi-directional communication interface. The antenna and chip
twowgwe.tDhaetar Sfohermet4aU.tcroamnsponder or tag.
The on-chip 330-bit EEPROM (10 blocks, 33 bits each) can be read and written block-
wise from a reader. Block 0 is reserved for setting the operation modes of the
ATA5570 tag. Block 7 may contain a password to prevent unauthorized writing.
Data is transmitted from the IDIC using load modulation. This is achieved by damping
the RF field with a resistive load between the two terminals COIL1 and COIL2. The IC
receives and decodes 100% amplitude-modulated (OOK) pulse-interval-encoded bit
streams from the base station or reader.
Rev. 4863A–RFID–07/05
1 page  
ATA5570 [Preliminary]
Figure 4-2. Block 0 Configuration Mapping – e5550 Compatibility Mode
L 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
10010000
1
Master Key
n5 n4 n3 n2 n1 n0
Modulation
PSK-
MAX-
Note 1), 2)
Data Bit Rate
CF BLOCK
RF/(2n + 2)
0 0 RF/2
Direct
0 0 0 0 0 0 1 RF/4
PSK1
0 0 0 0 1 1 0 RF/8
0 Unlocked
PSK2
0 0 0 1 0 1 1 Res.
1 Locked
PSK3
00011
FSK1
00100
FSK2
00101
Mode-Defeat 1 0 0 1 1 0
Mode-Defeat 2 0 0 1 1 1
Manchester 0 1 0 0 0
Biphase ('50) 1 0 0 0 0
Biphase ('57) 1 1 0 0 0
1) If Master Key = 6 and bit 15 set, then test-mode access is disabled and extended mode is active
2) If Master Key = 9 and bit 15 set, then extended mode is enabled
4.10 Modulator
The modulator consists of data encoders for the following basic types of modulation:
www.DataSheet4U.com
Table 4-1. Types of e5550-compatible Modulation Modes
Mode
Direct Data Output
FSK1a(1)
FSK2a(1)
FSK1(1)
FSK2(1)
PSK1(2)
PSK2(2)
PSK3(2)
Encoding
FSK/8, FSK/5
“0” = RF/8;
FSK/8, FSK/10
“0” = RF/8;
FSK/5, FSK/8
“0” = RF/5;
FSK/10, FSK/8
“0” = RF/10;
Phase change when input changes
Phase change on bit clock if input high
Phase change on rising edge of input
“1” = RF/5
“1” = RF/10
“1” = RF/8
“1” = RF/8
Manchester
“0” = falling edge, “1” = rising edge
Bi-phase
“1” creates an additional mid-bit change
NRZ
“1” = damping on, “0” = damping off
Notes: 1. A common multiple of bit rate and FSK frequencies is recommended.
2. In PSK mode the selected data rate has to be an integer multiple of the PSK sub-carrier
frequency.
4863A–RFID–07/05
5
5 Page 
ATA5570 [Preliminary]
Table 5-1. Write-data Decoding Scheme
Parameters
Remark
Symbol
Min
Max
Unit
Start gap
–
Sgap
10
50
FC
Write gap
Normal write mode
Wgap
8
30 FC
Write data in normal mode
“0” data
“1” data
d0 16 31 FC
d1 48 63 FC
5.8 Write-data Protocol
The ATA5570 expects to receive a dual-bit opcode as the first two bits of a reader command
sequence. There are three valid opcodes:
• The opcodes “10” and “11” precede all block-write and direct-access operations for page 0
and page 1
• The RESET opcode “00” initiates a POR cycle
• The opcode “01” precedes all test-mode write operations. Any test-mode access is ignored
after the master key (bits 1 to 4) in block 0 has been set to “6”. Any further modifications of
the master key are prohibited by setting the lock bit of block 0 or the OTP bit.
Writing has to follow these rules:
• Standard write needs the opcode, the lock bit, 32 data bits and the 3-bit address
(38 bits total)
• Protected write (PWD bit set) requires a valid 32-bit password after opcode and before data
and address bits
• For the AOR wake-up command an opcode and a valid password are necessary to select
and activate a specific tag
Note: The data bits are read in the same order as written.
If the transmitted command sequence is invalid, the ATA5570 enters regular-read mode with the
previously selected page (by former opcode “10” or “11”).
Figure 5-5. Complete Writing Sequence
www.DataSheet4U.com
Read mode
Write mode
Read mode
Op-code
Block data Block address
Programming
Block 0 loading
POR
Start gap
Lock bit
4863A–RFID–07/05
11
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| PDF Descargar | [ Datasheet ATA5570.PDF ] | |
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