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PDF MCRF200 Data sheet ( Hoja de datos )
| Número de pieza | MCRF200 | |
| Descripción | 125 kHz microID Passive RFID Device | |
| Fabricantes | Microchip Technology | |
| Logotipo |  |
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MCRF200
125 kHz microID™ Passive RFID Device
Features
• Factory programming and memory serialization
(SQTPSM)
• One-time contactless programmable (developer
kit only)
• Read-only data transmission after programming
• 96 or 128 bits of One-Time Programmable (OTP)
user memory (also supports 48 and 64-bit
protocols)
• Typical operation frequency: 100 kHz-400 kHz
• Ultra low-power operation (5 µA @ VCC = 2V)
• Modulation options:
- ASK, FSK, PSK
• Data Encoding options:
- NRZ Direct, Differential Biphase, Manchester
Biphase
• Die, wafer, COB, PDIP or SOIC package options
• Factory programming options
Application
• Low-cost alternative for existing low-frequency
RFID devices
• Access control and time attendance
• Security systems
• Animal tagging
• Product identification
• Industrial tagging
• Inventory control
RF
Signal
Reader
Data
MCRF200
Package Type
PDIP/SOIC
VA 1
8 VB
NC 2
7 NC
I/O
RESET
3
4
6 VSS
5 VCC
Note: Pins 3, 4, 5 and 6 are for device test purposes only.
Pins 1 and 8 are for antenna connections.
DO NOT ground pin 5.
Description
The MCRF200 is a passive Radio Frequency Identifi-
cation (RFID) device for low-frequency applications
(100 kHz-400 kHz). The device is powered by
rectifying an incoming RF signal from the reader. The
device requires an external LC resonant circuit to
receive the incoming RF signal and to send data. The
device develops a sufficient DC voltage for operation
when its external coil voltage reaches approximately 10
VPP.
This device has a total of 128 bits of user programmable
memory and an additional 12 bits in its configuration
register. The user can manually program the 128 bits of
user memory by using a contactless programmer in a
microID developer kit such as DV103001 or PG103001.
However, in production volume the MCRF200 is
programmed at the factory (Microchip SQTP – see
Technical Bulletin TB023). The device is a One-Time
Programmable (OTP) integrated circuit and operates as
a read-only device after programming.
2003 Microchip Technology Inc.
DS21219H-page 1
1 page  
MCRF200
2.2 Configuration Register and
Control Logic
The configuration register determines the operational
parameters of the device. The configuration register
can not be programmed contactlessly; it is
programmed during wafer probe at the Microchip
factory. CB11 is always a zero; CB12 is set when
successful contact or contactless programming of the
data array has been completed. Once CB12 is set,
device programming and erasing is disabled. Table 2-4
contains a description of the bit functions of the control
register.
2.2.1 BAUD RATE TIMING OPTION
The chip will access data at a baud rate determined by
bits CB2, CB3 and CB4 of the configuration register.
For example, MOD32 (CB2 = 0, CB3 = 1, CB4 = 1) has
32 RF cycles per bit. This gives the data rate of 4 kHz
for the RF carrier frequency of 128 kHz.
The default timing is MOD128 (FCLK/128), and this
mode is used for contact and contactless program-
ming. Once the array is successfully programmed, the
lock bit CB12 is set. When the lock bit is set, program-
ming and erasing the device becomes permanently
disabled. The configuration register has no effect on
device timing until the EEPROM data array is
programmed (CB12 = 1).
2.2.2 DATA ENCODING OPTION
This logic acts upon the serial data being read from the
EEPROM. The logic encodes the data according to the
configuration bits CB6 and CB7. CB6 and CB7
determine the data encoding method. The available
choices are:
• Non-return to zero-level (NRZ_L)
• Biphase Differential, Biphase Manchester
• Inverted Manchester
2.2.3 MODULATION OPTION
CB8 and CB9 determine the modulation protocol of the
encoded data. The available choices are:
• ASK
• FSK
• PSK_1
• PSK_2
When ASK (direct) option is chosen, the encoded data
is fed into the modulation transistor without change.
When FSK option is chosen, the encoded data is
represented by:
a) Sets of 10 RF carrier cycles (first 5 cycles →
higher amplitude, the last 5 cycles → lower
amplitude) for logic “high” level.
b) Sets of 8 RF carrier cycles (first 4 cycles →
higher amplitude, the last 4 cycles → lower
amplitude) for logic “low” level.
For example, FSK signal for MOD40 is represented:
a) 4 sets of 10 RF carrier cycles for data ‘1’.
b) 5 sets of 8 RF carrier cycles for data ‘0’.
Refer to Figure 2-2 for the FSK signal with MOD40
option.
The PSK_1 represents change in the phase of the
modulation signal at the change of the encoded data.
For example, the phase changes when the encoded
data is changed from ‘1’ to ‘0’, or from ‘0’ to ‘1’.
The PSK_2 represents change in the phase at the
change on ‘1’. For example, the phase changes when
the encoded data is changed from ‘0’ to ‘1’, or from ‘1’
to ‘1’.
FIGURE 2-2:
ENCODED DATA AND FSK OUTPUT SIGNAL FOR MOD40 OPTION
Encoded Data ‘1’
5 cycles (HI)
5 cycles (LO)
Encoded Data ‘0’
4 cycles (HI)
4 cycles (LO)
40 RF cycles
2003 Microchip Technology Inc.
40 RF cycles
DS21219H-page 5
5 Page 
5.0 MECHANICAL
SPECIFICATIONS FOR DIE
AND WAFER
FIGURE 5-1:
DIE PLOT
Device Test Only
VSS VCC RESET I/O
VB VA
MCRF200
TABLE 5-1: PAD COORDINATES (µm)
Passivation
Openings
Pad
Name
VA
Pad
Width
90.0
Pad
Height
90.0
Pad Pad
Center X Center Y
427.50 -734.17
VB 90.0
90.0 -408.60 -734.17
Note 1: All coordinates are referenced from the
center of the die.
2: Die size: 1.1215 mm x 1.7384 mm
44.15 mils x 68.44 mils
TABLE 5-2:
Name
VA
VB
VSS
VCC
RESET
I/O
PAD FUNCTION TABLE
Function
Antenna Coil connection
For device test only
Do Not Connect to Antenna
2003 Microchip Technology Inc.
DS21219H-page 11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet MCRF200.PDF ] | |
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