HT12F-20 HOLTEK [Holtek Semiconductor Inc], HT12F-20 Datasheet - Page 3

• Manufacturer Part Number: HT12F-20
• Description: 2 12 Series of Decoders
• Manufacturer: HOLTEK [Holtek Semiconductor Inc]

Pin Description
Approximate internal connection circuits
Absolute Maximum Ratings
Supply Voltage...............................-0.3V to 13V
Input Voltage....................V
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maxi-
Pin Name I/O
A0~A11
D8~D11
DIN
VT
OSC1
OSC2
VSS
VDD
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.
O
O
O
I
I
I
I
I
TRANSMISSION
OSCILLATOR
OSCILLATOR
Connection
CMOS OUT
CMOS OUT
Internal
CMOS IN
NMOS
GATE
SS
¾
¾
-0.3 to V
DD
Input pins for address A0~A11 setting
They can be externally set to VDD or VSS.
Output data pins
Serial data input pin
Valid transmission, active high
Oscillator input pin
Oscillator output pin
Negative power supply (GND)
Positive power supply
+0.3V
3
Storage Temperature.................-50°C to 125°C
Operating Temperature ..............-20°C to 75°C
Description
2
12
Series of Decoders
July 12, 1999