HT12F-20(1999) Просмотр технического описания (PDF) - Holtek Semiconductor
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HT12F-20 Datasheet PDF : 9 Pages
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212 Series of Decoders
Pin Description
Pin Name I/O
Internal
Connection
Description
A0~A11
I
NMOS
TRANSMISSION
GATE
Input pins for address A0~A11 setting
They can be externally set to VDD or VSS.
D8~D11 O
CMOS OUT Output data pins
DIN
I
CMOS IN Serial data input pin
VT
O
CMOS OUT Valid transmission, active high
OSC1
I OSCILLATOR Oscillator input pin
OSC2
O OSCILLATOR Oscillator output pin
VSS
I
¾
Negative power supply (GND)
VDD
I
¾
Positive power supply
Approximate internal connection circuits
NM OS
T R A N S M IS S IO N
G ATE
CM OS OUT
C M O S IN
O S C IL L A T O R
EN
O SC1
O SC2
Absolute Maximum Ratings
Supply Voltage...............................-0.3V to 13V
Input Voltage....................VSS-0.3 to VDD+0.3V
Storage Temperature.................-50°C to 125°C
Operating Temperature ..............-20°C to 75°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maxi-
mum Ratings² may cause substantial damage to the device. Functional operation of this de-
vice at other conditions beyond those listed in the specification is not implied and prolonged
exposure to extreme conditions may affect device reliability.
3
July 12, 1999
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