商品描述
Features
• Wide Analog Input Voltage Range: ±5-V Maximum
• Low ON-Resistance
– 70-Ω Typical (VCC – VEE = 4.5 V)
– 40-Ω Typical (VCC – VEE = 9 V)
• Low Crosstalk Between Switches
• Fast Switching and Propagation Speeds
• Break-Before-Make Switching
• Wide Operating Temperature Range:
–55°C to +125°C
• CD54HC and CD74HC Types
– Operation Control Voltage: 2 V to 6 V
– Switch Voltage: 0 V to 10 V
– Direct LSTTL Input Logic Compatibility
VIL = 0.8-V Max, VIH = 2-V Min
– CMOS Input Compatibility
II ≤ 1 μA at VOL, VOH
• On Products Compliant to MIL-PRF-38535,
All Parameters Are Tested Unless Otherwise
Noted. On All Other Products, Production
Processing Does Not Necessarily Include Testing
of All Parameters.
Applications
• Digital Radio
• Signal Gating
• Factory Automation
• Televisions
• Appliances
• Programmable Logic Circuits
• Sensors
Description
The CDx4HC405x and CDx4HCT405x devices are digitally controlled analog switches that use silicon gate CMOS technology to achieve operating speeds similar to LSTTL with the low-power consumption of standard CMOS integrated circuits.
These analog multiplexers and demultiplexers control analog voltages that may vary across the voltage supply range (for example, VCC to VEE). They are bidirectional switches that allow any analog input to be used as an output and vice versa. The switches have low ON resistance and low OFF leakages. In addition, all these devices have an enable control that, when high, disables all switches to their OFF state.
Device Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
| CD54HCx405xF | CDIP (16) | 19.56 mm × 6.92 mm |
| CD74HCx405xE | PDIP (16) | 19.30 mm × 6.35 mm |
| CD74HCx405xM | SOIC (16) | 9.90 mm × 3.91 mm |
| CD74HCx405xNS | SOP (16) | 10.30 mm × 5.30 mm |
| CD74HCx405xPW | TSSOP (16) | 5.00 mm × 4.40 mm |
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Functional Diagram of HC4051 and HCT4051
| PIN | NAME | I/O | Description |
| 1 | B1 IN/OUT | I/O | B channel Y in/out |
| 2 | B0 IN/OUT | I/O | B channel X in/out |
| 3 | C1 IN/OUT | I/O | C channel Y in/out |
| 4 | COM C OUT/IN | I/O | C common out/in |
| 5 | C0 IN/OUT | I/O | C channel X in/out |
| 6 | E | I | Enable channels (Active Low) See Table3. |
| 7 | VEE | - | Negative power input |
| 8 | GND | - | Ground |
| 9 | S2 | I | Channel select 2.See Table3. |
| 10 | S1 | I | Channel select 1.See Table3. |
| 11 | S0 | I | Channel select 0.See Table3. |
| 12 | A0 IN/OUT | I/O | A channel X in/out |
| 13 | A1 IN/OUT | I/O | A channel Y in/out |
| 14 | COM A OUT/IN | I/O | A common out/in |
| 15 | COM B OUT/IN | I/O | B common out/in |
| 16 | VCC | - | Positive power input |
Table3
| INPUT STATES | On
Channels |
| ENABLE | S2 | S1 | S0 |
| L | L | L | L | C0, B0, A0 |
| L | L | L | H | C0, B0, A1 |
| L | L | H | L | C0, B1, A0 |
| L | L | H | H | C0, B1, A1 |
| L | H | L | L | C1, B0, A0 |
| L | H | L | H | C1, B0, A1 |
| L | H | H | L | C1, B1, A0 |
| L | H | H | H | C1, B1, A1 |
| H | X | X | X | None |
X = Don't care
Datasheet
