參數(shù)資料
型號： 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)： 8/12頁
文件大小： 190K
代理商： AT88RF256-12
AT88RF256-12
8
Absolute Maximum Ratings
Parametric Specifications
Unless otherwise noted, all specifications are over the temperature range of -40
°
C to +85
°
C.
Notes:
1. Some parametric limits are design targets that may be refined on the basis of production history.
2. Coil voltages are measured with respect to the on chip ground, which is centered on the AC voltage from the coil.
Peak-to-peak coil voltages would be double to those listed above.
3. Reference Transmit Test Circuit:
CNF: Carrier Near Field
MNF: Modulating Near Field
CFF: Carrier Far Field
MFF: Modulating Far Field
Transmit Test Circuit
Test Waveform
Operating Temperature..........................-40
°
C to +85
°
C
Storage Temperature (without Bias)........-40
°
C to + 85
°
C
Maximum Power from RF Field...........................100 mW
Maximum Coil Input Voltage..................................24V
P-P
Maximum ESD Voltage (pins L1 and L2)...............2000V
*NOTICE:
Stresses beyond those listed under
“
Absolute
Maximum Ratings
”
may cause permanent
damage to the device. This is a stress rating only
and functional operation of the device at these or
any other conditions beyond those indicated in
the operational sections of this specification is
not implied. Exposure to absolute maximum
rating conditions for extended periods may affect
device reliability.
Name
Min
Typ
Max
Units
Notes
P
COIL
160
mW
Maximum Power Dissipation from L1/L2, Peak
V
COIL1
1.6
2.2
3.1
V
Coil Voltage
(2)
for ID Transmission
V
COIL2
2.7
3.0
3.7
Coil Voltage
(2)
for EEPROM Writes and Reads
I
L1-L2
20
mA
Peak Clamp Current
I
CCR
7
10
μ
A
During EEPROM Read, V
L1/L2
= 2.2V
I
CCW
150
200
μ
A
During EEPROM Write, V
L1/L2
= 3.0
10V Through 400
, Prior to Modulation
(3)
V
CNF
5.0
7.0
V
V
MNF
4.0
V
10V Through 400
, During Modulation
(3)
V
CFF
4.0
V
4.5V Through 5 k
, Prior to Modulation
(3)
V
MFF
3.4
V
4.5V Through 5 k
, During Modulation
(3)
DV
RCV
1.0
V
Modulation Voltage Delta During Reception
C
L
135
150
165
pF
Input Capacitance on L1/L2 at 5V, Not Tested
L1
L2
R
R
+
-
+
-
GND
AT88RF256-12
VL1
VL2
V
CNF,
V
CFF
DV
RCV
V
MNF,
V
MFF
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