參數(shù)資料
型號: JT6N78S
英文描述: TRANSPONDER|CMOS|DIE
中文描述: 轉發(fā)器|的CMOS |模具
文件頁數(shù): 4/7頁
文件大?。?/td> 114K
代理商: JT6N78S
JT6N78S
2000-07-21 4/7
Pin Functions
Pin No.
Symbol
Function
10
ANT1
Rectifier diode input, antenna connection pin 1
11
ANT2
Rectifier diode input (carrier extraction input side), antenna connection pin 2
12
V
DD
Power supply for bridge circuit output, regulator voltage and internal circuits
13
GND
GND-internal circuit voltage reference
1~9
LSI test pins
LSI External Specifications
Parameter
Specifications
Power supply
Battery less-externally supplied by electromagnetic induction
Coupling type
Electromagnetic induction
Power feed frequency
120 kHz~500 kHz
Note: An antenna and a capacitor are connected externally.
Communications method
Receive: PSK, Transmission: PSK
(Reply carrier frequency is half the receive carrier frequency)
Transfer speed
2.5 kbps (when receive carrier frequency is 400 kHz) 1/16 of receive carrier frequency
Transfer method
Half-duplex start-stop synchronization transmission (with parity, 1 stop bit)
1-Kbit E
2
PROM (256 bits are used as security area.)
Memory size
Write time
7 ms max (for batch write of 8 bytes)
Control circuit
Key checking and access level control by hardware
Incorporates two access keys (6-byte key and 2-byte status).
Using access keys, read-only or write/read privilege can be set independently for each 32-byte
area (programmable security).
Block write in units of 8 bytes and block read in units of 16 bytes using an access key and
physical address.
Controls multi-read using Multi-Read command.
Multi-read
32 reads/s (power feed frequency of 400 kHz when ID only is read)
Operating temperature
20°C~
+
85°C
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