74HC4520DB: Dual 4-bit synchronous binary counter
The 74HC4520; 74HCT4520 are dual 4-bit internally synchronous binary counters with two clock inputs (nCP0 and nCP1). They have buffered outputs from all 4 bit positions (nQ0 to nQ3) and an asynchronous master reset input (nMR). The counter advances on the LOW-to-HIGH transition of nCP0 when nCP1 is HIGH. It also advances on the HIGH-to-LOW transition of nCP1 when nCP0 is LOW. Either nCP0 or nCP1 may be used as the clock input to the counter. The other clock input may be used as a clock enable input. A HIGH on nMR, resets the counter (nQ0 to nQ3 = LOW) independent of nCP0 and nCP1. Inputs include clamp diodes. It enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Outline 3d SOT338-1
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| Dual 4-bit synchronous binary counter (REV 4.0) PDF (184.0 kB) 74HC_HCT4520 [English] | 10 May 2016 |
Application Notes (2)
| Name/Description | Modified Date |
|---|---|
| Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English] | 13 Mar 2013 |
| Pin FMEA 74HC/74HCT family (REV 1.0) PDF (51.0 kB) AN11044 [English] | 16 Mar 2011 |
Users Guides (1)
| Name/Description | Modified Date |
|---|---|
| HC/T User Guide (REV 1.0) PDF (508.0 kB) HCT_USER_GUIDE [English] | 01 Nov 1997 |
Package Information (1)
| Name/Description | Modified Date |
|---|---|
| plastic shrink small outline package; 16 leads; body width 5.3 mm (REV 1.0) PDF (306.0 kB) SOT338-1 [English] | 08 Feb 2016 |
Supporting Information (2)
| Name/Description | Modified Date |
|---|---|
| Footprint for reflow soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-REFLOW [English] | 08 Oct 2009 |
| Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English] | 08 Oct 2009 |
Ordering Information
| Product | Status | Family | VCC (V) | Function | Output drive capability (mA) | Description | Logic switching levels | Package version | tpd (ns) | Power dissipation considerations | Tamb (Cel) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | No of pins |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HC4520DB | Active | HC(T) | 2.0 - 6.0 | Binary counters/timers | +/- 5.2 | dual 4-bit synchronous binary counter | CMOS | SOT338-1 | 24 | low | -40~125 | 148 | 42.0 | SSOP16 | 16 |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HC4520DB | | SOT338-1 | SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | 74HC4520DB,118 (9351 887 50118) | HC4520 | 74HC4520DB |    | week 17, 2005 | 84.9 | 6.62 | 1.51E8 | 1 | 1 |
| Bulk Pack | Active | 74HC4520DB,112 (9351 887 50112) | HC4520 | 74HC4520DB | | week 17, 2005 | 84.9 | 6.62 | 1.51E8 | 1 | 1 |
- Dual 4-bit synchronous binary counter 74HCT4520DB
- Live Insertion Aspects of Philips Logic Families 74HC_T_245_Q100
- Pin FMEA 74HC/74HCT family 74HC_T_597_Q100
- HC/T User Guide 74HCU04PW
- plastic shrink small outline package; 16 leads; body width 5.3 mm 74HC_T_595_Q100
- Footprint for reflow soldering 74HC_T_595_Q100
- SSOP-TSSOP-VSO-WAVE LPC1114FDH28
- HEF4094B
