sri512 STMicroelectronics, sri512 Datasheet - Page 42

• Manufacturer Part Number: sri512
• Description: 13.56-mhz Short-range Contactless Memory Chip With 512-bit Eeprom And Anti-collision Functions
• Manufacturer: STMicroelectronics

Package mechanical
11
42/50
Package mechanical
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a Lead-free second-level interconnect. The category of
Second-Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97.
The maximum ratings related to soldering conditions are also marked on the inner box label.
ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
Figure 52. A3 antenna specification
Table 10.
Symbol
F
NOM
A1
B1
P
Q
A
B
A
Coil Width
Coil Length
Inlay Width
Inlay Length
Overall Thickness of Copper Antenna Coil
Silicon Thickness
Unloaded Q Value
Unloaded Free-air Resonance
H-field Energy for Device Operation
A3 antenna specification
Parameter
B1
B
Type
15.1
110
180
38
38
43
43
40
A
A1
37.5
37.5
42.5
42.5
Min
165
114
0.5
90
Max
38.5
38.5
43.5
43.5
130
195
AI09046B
dbµA/m
MHz
Unit
SRI512
mm
mm
mm
mm
A/m
µm
µm