7442 BCD to Decimal Decoder Datasheet
Photograph
![7442 BCD to Decimal Decoder](https://www.futurlec.com/Pictures/Package/PDIP16_200.jpg)
Features
- Single 7-Segment to BCD Decoder
- Outputs Directly Interface to CMOS, NMOS and TTL
- Large Operating Voltage Range
- Wide Operating Conditions
- Not Recommended for New Designs
Pin Layout
![TTL 7442 Pin Layout](https://www.futurlec.com/IC7442.gif)
Pin Description
Pin Number | Description |
---|---|
1 | Decimal 0 Output |
2 | Decimal 1 Output |
3 | Decimal 2 Output |
4 | Decimal 3 Output |
5 | Decimal 4 Output |
6 | Decimal 5 Output |
7 | Decimal 6 Output |
8 | Ground |
9 | Decimal 7 Output |
10 | Decimal 8 Output |
11 | Decimal 9 Output |
12 | BCD D Input |
13 | BCD C Input |
14 | BCD B Input |
15 | BCD A Input |
16 | Vcc – Positive Supply |
Dimensional Drawing
![DIP16 IC Dimensional Drawing](https://www.futurlec.com/DIP16.gif)
Absolute Maximum Ratings
Supply Voltage |
7V |
Input Voltage |
5.5V |
Operating Free Air Temperature |
0°C to +70°C |
Storage Temperature Range |
-65°C to +150°C |
Recommended Operating Conditions
Symbol | Parameter | Min | Typ | Max | Units |
---|---|---|---|---|---|
Vcc | Supply Voltage | 4.75 | 5 | 5.25 | V |
Vih | HIGH Level Input Voltage | 2 | V | ||
Vil | LOW Level Input Voltage | 0.8 | V | ||
Ioh | HIGH Level Output Current | -0.4 | mA | ||
Iol | LOW Level Output Current | 16 | mA | ||
Ta | Free Air Operating Temperature | 0 | 70 | °C |
Electrical Characteristics
Symbol | Parameter | Conditions | Min | Typ | Max | Units |
---|---|---|---|---|---|---|
Vi | Input Clamp Voltage | Vcc=Min Ii=-12mA | -1.5 | V | ||
Voh | HIGH Level Output Voltage | Vcc=Min Ioh=MAX Vil=MAX | 2.4 | 3.4 | V | |
Vol | LOW Level Output Voltage | Vcc=Min Iol=MAX Vih=MAX | 0.2 | 0.4 | V | |
Ii | Input Current@MAX Input Voltage | Vcc=Max Vi=5.5V | 1 | mA | ||
Iih | HIGH Level Input Current | Vcc=Max Vi=2.4V | 40 | µA | ||
Iil | LOW Level Input Current | Vcc=Max Vi=0.4V | -1.6 | mA | ||
Ios | Short Circuit Output Current | Vcc=Max | -18 | -55 | mA | |
Icch | Supply Current with Outputs HIGH | Vcc=Max | 4 | 8 | mA | |
Iccl | Supply Current with Outputs LOW | Vcc=Max | 12 | 22 | mA |
Switching Characteristics at Vcc=5V,Ta=25°C
Symbol | Parameter | Conditions | Min | Typ | Max | Units |
---|---|---|---|---|---|---|
tplh | Propagation Delay Time LOW-to-HIGH Level Output | Cl=15pF Rl=400R | 22 | nS | ||
tphl | Propagation Delay Time HIGH-to-LOW Level Output | Cl=15pF Rl=400R | 15 | nS |
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