sri512 STMicroelectronics, sri512 Datasheet - Page 40

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

DC and AC parameters
10
40/50
DC and AC parameters
Table 7.
Table 8.
Table 9.
1. All timing measurements were performed on a reference antenna with the following characteristics:
MI
t
Symbol
Symbol
RFR
Symbol
t
External size: 75 mm x 48 mm
Number of turns: 3
Width of conductor: 1 mm
Space between 2 conductors: 0.4 mm
Value of the coil: 1.4 µH
Tuning Frequency: 14.4 MHz.
t
V
C
MIN CD
CARRIER
V
RFSBL
I
I
f
t
t
T
CC
CC
RET
TUN
t
t
CC
CC
JIT
f
DR
DA
t
t
t
, t
W
A
S
0
1
2
RFF
Regulated voltage
Supply current (active in Read)
Supply current (active in Write)
Back-scattering-induced voltage
Internal tuning capacitor
Ambient operating temperature
External RF Signal Frequency
Carrier Modulation Index
10% Rise and Fall times
Minimum pulse width for Start bit
ASK modulation data jitter
Minimum time from carrier
generation to first data
Subcarrier frequency
Antenna reversal delay
Synchronization delay
Answer to new request delay
Time between request characters
Time between answer characters
Programming time for WRITE
Operating conditions
DC characteristics
AC characteristics
Parameter
Parameter
Parameter
(1)
Binary Counter Decrement
With no Auto-Erase Cycle
With Auto-Erase Cycle
ISO 10373-6
V
V
13.56 MHz
Condition
Coupler to SRI512
Coupler to SRI512
SRI512 to Coupler
CC
CC
MI=(A-B)/(A+B)
ETU = 128/f
= 3.0 V
= 3.0 V
(EEPROM)
Condition
14 ETU
f
128/f
128/f
(OTP)
CC
/16
S
S
Min.
–20
CC
Min
2.5
20
13.553 13.567
Typ
Min
132
0.8
Max.
64
–2
8
5
0
85
847.5
9.44
151
151
0
Max
100
250
3.5
Max
2.5
14
+2
57
3
5
7
Unit
SRI512
°C
Unit
mV
MHz
Unit
kHz
µA
µA
pF
ms
ms
ms
ms
V
µs
µs
µs
µs
µs
µs
µs
µs
%