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ST25TA64K 데이터시트(PDF) 42 Page - STMicroelectronics

부품명 ST25TA64K
상세설명  NFC Forum Type 4 Tag IC with 64-Kbit EEPROM
PDF  45 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST25TA64K 데이터시트(HTML) 42 Page - STMicroelectronics

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RF electrical parameters
ST25TA64K
42/45
DocID027764 Rev 1
10
RF electrical parameters
This section summarizes the operating and measurement conditions, and the DC and AC
characteristics of the device in RF mode.
The parameters in the DC and AC characteristics tables that follow are derived from tests
performed under the Measurement Conditions summarized in the relevant tables.
Designers should check that the operating conditions in their circuit match the measurement
conditions when relying on the quoted parameters.
Table 53. Default operating conditions
Symbol
Parameter
Min.
Max.
Unit
TA
Ambient operating temperature
–40
85
°C
Table 54. RF characteristics (1)
Symbol
Parameter
Condition
Min
Typ
Max
Unit
fC
External RF signal frequency
13.553
13.56
13.567
MHz
H_ISO
Operating field according to ISO
TA = 0 °C to 50 °C
1500
-
7500
mA/m
H_Extended
Operating field in extended
temperature range
TA = -40 °C to 85 °C
1500
-
7500
mA/m
MICARRIER 100% carrier modulation index
MI=(A-B)/(A+B)
90
-
100
%
t1
Pause A length
-
28/fC
-
40.5/fC
µs
t2
Pause A low time
-
7/fC
-t1
µs
t3
Pause A rise time
-
1.5xt4
-
16/fC
µs
t4
Pause A rise time section
-
0
-
6/fC
µs
tMIN CD
Minimum time from carrier
generation to first data
From H-field min
-
-
5
ms
Wt
RF write time (including internal
Verify) for one page
--
6
-
ms
CTUN
Internal tuning capacitor in SO8 (2)
fC = 13.56 MHz
22.5
25
27.5
pF
tRF_OFF
RF OFF time
Chip reset
-
-
5
ms
1. All timing characterizations were performed on a reference antenna with the following characteristics:
External size: 75 mm x 48 mm
Number of turns: 6
Width of conductor: 0.6 mm
Space between two conductors: 0.6 mm
Value of the tuning capacitor in SO8: 25 pF (ST25TA64K)
Value of the coil: 5 µH
Tuning frequency: 14.2 MHz.
2. Characterized only, at room temperature only, measured at VAC0-VAC1 = 2 V peak to peak at 13.56 MHz.



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