Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

HT672A Datasheet(PDF) 1 Page - Holtek Semiconductor Inc

Part # HT672A
Description  13.56MHz RFID Transponder
Download  8 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT672A Datasheet(HTML) 1 Page - Holtek Semiconductor Inc

  HT672A_07 Datasheet HTML 1Page - Holtek Semiconductor Inc HT672A_07 Datasheet HTML 2Page - Holtek Semiconductor Inc HT672A_07 Datasheet HTML 3Page - Holtek Semiconductor Inc HT672A_07 Datasheet HTML 4Page - Holtek Semiconductor Inc HT672A_07 Datasheet HTML 5Page - Holtek Semiconductor Inc HT672A_07 Datasheet HTML 6Page - Holtek Semiconductor Inc HT672A_07 Datasheet HTML 7Page - Holtek Semiconductor Inc HT672A_07 Datasheet HTML 8Page - Holtek Semiconductor Inc  
Zoom Inzoom in Zoom Outzoom out
 1 / 8 page
background image
HT672A
13.56MHz RFID Transponder
Block Diagram
Rev. 1.10
1
May 17, 2007
Features
· Low low operating current (15mA@VDD=2V)
· Wide range operating voltage
· Battery less RF transponder
· Data transmission in read-only operation
· Max. of 64-bits customer programmable data
· 16-bits CRC error detection code
· OTP data memory
· 13.56MHz carrier frequency
· Output data baud rate: 5kbps (Typ.)
· PWM/ASK modulation
· Built-in voltage limiter
· 8-pin DIP package available for engineering
evaluation - not for volume production
Applications
· Interactive toys
· Security system
· Access control
· Anti-counterfeit for commercial product
General Description
The HT672A is an RF transponder IC with 13.56MHz RF
carrier, which provides a low cost battery less tran-
sponder solution when combined with an external in-
ductor. The inductor and internal capacitor form an LC
tank which induce voltage from the radiated 13.56MHz
carrier signal generated from the reader antenna.
HT672A has a built-in low power RC oscillator which is
activated if the induced carrier field strength is high
enough to supply the operating current and the re-
sponse signal (pre-programmed in the OTP memory) is
serially transmitted out. The response data is transmit-
ted using PWM/ASK modulation. Modulation of
13.56MHz is accomplished by damping the LC tank with
a fixed baud rate.
The transmission information is stored in a 96 bits one
time programmable memory OTP, with a 16-bit CRC
code (up to 64 bits reserved for customer). The effective
detection range for a small sized antenna is 2cm~10cm
which is dependent on antenna format & reader design.
The larger the antenna loop used the longer the detec-
tion range. It is advisable to use larger antenna to attain
a 15 cm detection range.
Implementing Holtek
¢s advanced OTP and low power
technology, HT672A offers a very cost effective solution
for RF contact less detection system.
A code area of 64-bits (max.) wide is provided so cus-
tomers can program the device using the specified pro-
grammer supplied by Holtek. The pre-programmed ICs
are also available upon customer
¢s request.
V P A
C L K
H F 2
H F 1
V D D
V S S
P W M / A S K
M o d u l a t o r
S h i f t
R e g i s t e r
D a t a
E P R O M
S y s t e m
C l o c k
G e n e r a t o r
V C C L i m i t e r
a n d
R F L i m i t e r
D a t a
P r o c e s s i n g
P o w e r O N
R e s e t
T e s t a n d
E P R O M
P r o g r a m m i n g
C o n t r o l
F r e q u e n c y
D r i v e r f S Y S / 4


Similar Part No. - HT672A_07

ManufacturerPart #DatasheetDescription
logo
Holtek Semiconductor In...
HT672A HOLTEK-HT672A Datasheet
118Kb / 7P
   13.56MHz RFID Transponder
More results

Similar Description - HT672A_07

ManufacturerPart #DatasheetDescription
logo
Holtek Semiconductor In...
HT672B HOLTEK-HT672B Datasheet
131Kb / 8P
   13.56MHz RFID Transponder
HT6740 HOLTEK-HT6740_07 Datasheet
111Kb / 8P
   13.56MHz RFID Transponder
HT6720 HOLTEK-HT6720 Datasheet
112Kb / 6P
   13.56MHz RFID Transponder
HT6740 HOLTEK-HT6740 Datasheet
875Kb / 7P
   13.56MHz RFID Transponder
HT672A HOLTEK-HT672A Datasheet
118Kb / 7P
   13.56MHz RFID Transponder
logo
Melexis Microelectronic...
MLX12115 MELEXIS-MLX12115 Datasheet
37Kb / 1P
   13.56MHz RFID Transceiver
logo
AMIC Technology
A9290-A-0C AMICC-A9290-A-0C Datasheet
94Kb / 1P
   13.56MHz RFID Antenna
logo
Melexis Microelectronic...
MLX90121 MELEXIS-MLX90121 Datasheet
387Kb / 26P
   13.56MHz RFID Transceiver
logo
AMIC Technology
A9290-A-0D AMICC-A9290-A-0D Datasheet
94Kb / 1P
   13.56MHz RFID Antenna
logo
Pepperl+Fuchs Inc.
IPC03-54 PF-IPC03-54 Datasheet
218Kb / 4P
   RFID Transponder
More results


Html Pages

1 2 3 4 5 6 7 8


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com