DATA SHEET
SNx4HC4020 14-Bit Asynchronous Binary Counters
1 Features
- Wide operating voltage range of 2 V to 6 V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption, 80-µA max ICC
- Typical tpd = 12 ns
- ±4-mA output drive at 5 V
- Low input current of 1 µA max
2 Description
The ’HC4020 devices are 14-stage binary ripple-carry counters that advance on the negative-going edge of the clock pulse. The counters are reset to zero (all outputs low) independently of the clock (CLK) input when the clear (CLR) input goes high.
Device Information
| PART NUMBER | PACKAGE(1) | BODY SIZE (NOM) |
|---|---|---|
| SN74HC4020D | SOIC (16) | 9.90 mm × 3.90 mm |
| SN74HC4020N | PDIP (16) | 19.31 mm × 6.35 mm |
| SN74HC4020NS | SO (16) | 6.20 mm × 5.30 mm |
| SN74HC4020PW | TSSOP (16) | 5.00 mm × 4.40 mm |
| SN54HC4020J | CDIP (16) | 24.38 mm × 6.92 mm |
| SNJ54HC4020FK | LCCC (20) | 8.89 mm × 8.45 mm |
| SNJ54HC4020W | CFP (16) | 10.16 mm × 6.73 mm |
(1) For all
available packages, see the orderable addendum at the end of the data
sheet.
Functional Block
Diagram