The 74HC/HCT390 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT390 are dual 4-bit decade ripple counters divided into four separately clocked sections. The counters have two divide-by-2 sections and two divide-by-5 sections. These sections are normally used in a BCD decade or bi-quinary configuration, since they share a common master reset input (nMR). If the two master reset inputs (1MR and 2MR) are used to simultaneously clear all 8 bits of the counter, a number of counting configurations are possible within one package. The separate clocks (nCP0 and nCP1) of each section allow ripple counter or frequency division applications of divide-by-2, 4, 5, 10, 20, 25, 50 or 100.
Each section is triggered by the HIGH-to-LOW transition of the clock inputs (nCP0 and nCP1). For BCD decade operation, the nQ0 output is connected to the nCP1 input of, the divide-by-5 section. For bi-quinary decade operation, the nQ3 output is connected to the nCP0 input and nQ0 becomes the decade output.
The master reset inputs (1MR and 2MR) are active HIGH asynchronous inputs to each decade counter which operates on the portion of the counter identified by the '1' and '2' prefixes in the pin configuration. A HIGH level on the nMR input overrides the clocks and sets the four outputs LOW.
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| 74HC390D | 74HC390D,652 | 9337 147 20652 | Volume production | SOT109 | Bulk Pack, CECC | Standard Marking | |
| 74HC390D | 74HC390D,653 | 9337 147 20653 | Volume production | SOT109 | Reel Pack, SMD, 13", CECC | Standard Marking | |
| 74HC390DB | 74HC390DB,112 | 9351 893 30112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | |
| 74HC390DB | 74HC390DB,118 | 9351 893 30118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | |
| 74HC390N | 74HC390N,652 | 9336 696 30652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | |
| 74HC390PW | 74HC390PW,112 | 9351 890 60112 | Volume production | SOT403-1
(TSSOP16) | Tube | Standard Marking | |
| 74HC390PW | 74HC390PW,118 | 9351 890 60118 | Volume production | SOT403-1
(TSSOP16) | Reel Pack, SMD, 13" | Standard Marking | |
| 74HCT390D | 74HCT390D,652 | 9337 152 00652 | Volume production | SOT109 | Bulk Pack, CECC | Standard Marking | |
| 74HCT390D | 74HCT390D,653 | 9337 152 00653 | Volume production | SOT109 | Reel Pack, SMD, 13", CECC | Standard Marking | |
| 74HCT390DB | 74HCT390DB,112 | 9351 899 30112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | |
| 74HCT390DB | 74HCT390DB,118 | 9351 899 30118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | |
| 74HCT390N | 74HCT390N,652 | 9336 702 60652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking |
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL |
|---|---|---|---|---|---|---|---|---|
| 74HC390D | 74HC390D,652 | 74HC390D |
| week 6, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HC390D | 74HC390D,653 | 74HC390D |
| week 6, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HC390DB | 74HC390DB,112 | 74HC390DB |
| week 12, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HC390DB | 74HC390DB,118 | 74HC390DB |
| week 12, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HC390N | 74HC390N,652 | 74HC390N |
| Always Pb-free | 6,62 | 1,51E+08 | NA | |
| 74HC390PW | 74HC390PW,112 | 74HC390PW |
| week 10, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HC390PW | 74HC390PW,118 | 74HC390PW |
| week 10, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HCT390D | 74HCT390D,652 | 74HCT390D |
| week 6, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HCT390D | 74HCT390D,653 | 74HCT390D |
| week 6, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HCT390DB | 74HCT390DB,112 | 74HCT390DB |
| week 12, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HCT390DB | 74HCT390DB,118 | 74HCT390DB |
| week 12, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HCT390N | 74HCT390N,652 | 74HCT390N |
| Always Pb-free | 6,62 | 1,51E+08 | NA |
| Type number | Ordering code(12NC) | Orderable part number | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HC390D | 9337 147 20652 | 74HC390D,652 | 0.2900 | NA | NEWARK | 268 | 11/6/2009 | Buy online | not available | |
| NA | ARROW ELECTRONICS | 172 | 11/6/2009 | Buy online | ||||||
| EU | FARNELL | 261 | 11/7/2009 | Buy online | ||||||
| NA | DIGI-KEY CORPORATION | 1,137 | 11/7/2009 | Buy online | ||||||
| NA | AVNET ELECTRONICS MARKETING | 1,975 | 11/7/2009 | Buy online | ||||||
| 74HC390D | 9337 147 20653 | 74HC390D,653 | 0.2900 | ASIA | SAC - Taiwan | yes | 2500 | 11/08/2009 | Buy online | Order samples |
| NA | MOUSER ELECTRONICS | 1,508 | 11/7/2009 | Buy online | ||||||
| 74HC390DB | 9351 893 30112 | 74HC390DB,112 | 0.2900 | NA | DIGI-KEY CORPORATION | 418 | 11/7/2009 | Buy online | not available | |
| 74HC390DB | 9351 893 30118 | 74HC390DB,118 | 0.2900 | not available | ||||||
| 74HC390N | 9336 696 30652 | 74HC390N,652 | 0.2900 | NA | NEWARK | 881 | 11/6/2009 | Buy online | Order samples | |
| NA | ARROW ELECTRONICS | 102 | 11/6/2009 | Buy online | ||||||
| EU | FARNELL | 955 | 11/7/2009 | Buy online | ||||||
| ASIA | WPI | 250 | 25 | 11/07/2009 | Buy online | |||||
| NA | DIGI-KEY CORPORATION | 1,259 | 11/7/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 1,226 | 11/7/2009 | Buy online | ||||||
| NA | FUTURE ELECTRONICS | 1,500 | 11/7/2009 | Buy online | ||||||
| NA | AVNET ELECTRONICS MARKETING | 4,000 | 11/7/2009 | Buy online | ||||||
| 74HC390PW | 9351 890 60112 | 74HC390PW,112 | 0.2900 | not available | ||||||
| 74HC390PW | 9351 890 60118 | 74HC390PW,118 | 0.2900 | not available | ||||||
| 74HCT390D | 9337 152 00652 | 74HCT390D,652 | 0.2900 | NA | ARROW ELECTRONICS | 1,725 | 11/6/2009 | Buy online | not available | |
| 74HCT390D | 9337 152 00653 | 74HCT390D,653 | 0.2900 | not available | ||||||
| 74HCT390DB | 9351 899 30112 | 74HCT390DB,112 | 0.2900 | NA | DIGI-KEY CORPORATION | 1,743 | 11/7/2009 | Buy online | not available | |
| NA | MOUSER ELECTRONICS | 1,067 | 11/7/2009 | Buy online | ||||||
| 74HCT390DB | 9351 899 30118 | 74HCT390DB,118 | 0.2900 | not available | ||||||
| 74HCT390N | 9336 702 60652 | 74HCT390N,652 | 0.2900 | NA | FUTURE ELECTRONICS | 110 | 11/7/2009 | Buy online | not available |
| Type number | Package | Description | Fmax(MHz) | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|---|
| 74HC390D | SOT109
| Dual Decade Ripple Counter | 71 | 14@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC390DB | SOT338-1
(SSOP16) | Dual Decade Ripple Counter | 71 | 14@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC390N | SOT38-4
(DIP16) | Dual Decade Ripple Counter | 71 | 14@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC390PW | SOT403-1
(TSSOP16) | Dual Decade Ripple Counter | 71 | 14@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HCT390D | SOT109
| Dual Decade Ripple Counter; TTL Enabled | 61 | 18 | 4.5-5.5 V | 16 | Low Power | TTL | +/- 4.0mA |
| 74HCT390DB | SOT338-1
(SSOP16) | Dual Decade Ripple Counter; TTL Enabled | 61 | 18 | 4.5-5.5 V | 16 | Low Power | TTL | +/- 4.0mA |
| 74HCT390N | SOT38-4
(DIP16) | Dual Decade Ripple Counter; TTL Enabled | 61 | 18 | 4.5-5.5 V | 16 | Low Power | TTL | +/- 4.0mA |
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