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PDF MDT75C275 Data sheet ( Hoja de datos )
| Número de pieza | MDT75C275 | |
| Descripción | OTP Encoder | |
| Fabricantes | MDTIC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MDT75C275 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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1. General Description
MDT75C275
OTP Encoder
The MDT75C275 is an OTP Encoder using CMOS technology. It has a maximum of
20 bits addressing code providing up to one million codes. It can reduce any code
collision and unauthorized code scanning possibilities.
2. Features
CMOS technology.
Low standby current : 1.0 uA.
Wide range of Operating Voltage : Vdd = 3.0V ~ 12V.
Up to 4 data pins.
Total 1048576 address codes.
Built-in RC oscillator with single external resistor.
Available in DIP and SOP package.
No Sleep mode
3. Pin Assignment
MDT75C275P / 75C275S
8 pin DIP / SOP
OSCR 1
8 K3
Vdd 2
7 K2
Vss 3
6 K1
TXD 4
5 K0
4. Pin Function Description
www.DataSheet.co.kr
Symbol
OSCR
Vdd
Vss
TXD
K0
K1
K2
K3
I/O Function Description
I Connect a resistor to Vdd to adjust internal RC freq.
Positive power supply 3.0V ~ 12 V.
Ground.
O Data output pin.
I Data input with pull low Resistor.
I Data input with pull low Resistor.
I Data input with pull low Resistor.
I Data input with pull low Resistor.
This specification is subject to be changed without notice. Please visit our web site for the most updated
information. http://www.mdtic.com.tw
P.1
2007/5 Ver. 1.0
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
MDT75C275
OTP Encoder
(a). If encoder circuit has one switch only to control ON/OFF power & key data together,
then circuit must add R1 resister 1MΩ .
(b). To increase the stability of RC oscillator can add 100 pF capacitor at Rosc in parallel .
(c). To increase the stability of K3 ~ K0 key data can increase pull low resister 100K connect
key and Vss , K3 ~ K0 internal pull low resister is 300K (Vdd=9V),
TXD
www.DataSheet.co.kr
This specification is subject to be changed without notice. Please visit our web site for the most updated
information. http://www.mdtic.com.tw
P.5
2007/5 Ver. 1.0
Datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
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| PDF Descargar | [ Datasheet MDT75C275.PDF ] | |
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