Select site:
- English
74HC/HCT6323A
General description
The HC/HCT6323A are high-speed Si-gate CMOS devices.
They are specified in compliance with JEDEC standard no. 7A.
The HC/HCT6323A are oscillators designed for quartz crystal combined with a programmable 3-state counter, a 3-state output buffer and an overriding asynchronous master reset (MR). With the two select inputs S1 and S2 the counter can be switched in the divide-by-1, 2, 4 or 8 mode. If left floating the clock is divided by 8. The oscillator is designed to operate either in the fundamental or third overtone mode depending on the crystal and external components applied. On-chip capacitors minimize external component count for third overtone crystal applications.
The oscillator may be replaced by an external clock signal at input X1. In this event the other oscillator pin (X2) must be floating. The counter advances on the negative-going transition of X1. A LOW level on MR resets the counter, stops the oscillator and sets the output buffer in the 3-state condition. MR can be left floating since an internal pull-up resistor will make the MR inactive. In the HCT version, the MR input and the two mode select pins S1 and S2 are TTL compatible, but the X1 input has CMOS input switching levels and may be driven by a TTL output using a pull-up resistor connected to VCC.
Features
- 8-pin space saving package
- Programmable 3-stage ripple counter
- Suitable for over-tone crystal application up to 50 MHz (VCC =5 V ±10%)
- 3-state output buffer
- Two internal capacitors
- Recommended operating range for use with third overtone crystals 3 to 6 V
- Oscillator stop function (MR)
- Output capability: bus driver ® (15 LSTTL)
- ICC category: MSI.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| 74HC6323AD | 74HC6323AD | 9350 137 10112 | Volume production | SOT96-1
(SO8) | Tube | Standard Marking | 74HC6323AD
| week 6, 2005 |
| 74HC6323AD | 74HC6323AD-T | 9350 137 10118 | Volume production | SOT96-1
(SO8) | Tape reel smd | Standard Marking | 74HC6323AD
| week 6, 2005 |
| 74HCT6323AD | 74HCT6323AD | 9350 137 20112 | Volume production | SOT96-1
(SO8) | Tube | Standard Marking | 74HCT6323AD
| week 6, 2005 |
| 74HCT6323AD | 74HCT6323AD-T | 9350 137 20118 | Volume production | SOT96-1
(SO8) | Tape reel smd | Standard Marking | 74HCT6323AD
| week 6, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74HC6323AD | 9350 137 10112 | 0.6000 | NA | DIGI-KEY CORPORATION | 3,087 | 9/6/2008 | Buy online | not available |
| NA | FUTURE ELECTRONICS | 1,200 | 9/5/2008 | Buy online | ||||
| 74HC6323AD | 9350 137 10118 | 0.6000 | NA | MOUSER ELECTRONICS | 2,490 | 9/5/2008 | Buy online | Order samples |
| 74HCT6323AD | 9350 137 20112 | 0.6000 | NA | DIGI-KEY CORPORATION | 1,077 | 9/6/2008 | Buy online | not available |
| 74HCT6323AD | 9350 137 20118 | 0.6000 | Order samples |
Applications
- Control counters
- Timers
- Frequency dividers
- Time-delay circuits
- CIO (Compact Integrated Oscillator)
- Third-overtone crystal operation.
Parametrics/similar products
| Type number | Package | Description | Fmax(MHz) | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|---|
| 74HC6323AD | SOT96-1
(SO8) | Programmable Ripple Counter with Oscillator (3-State) | 100 @ 6 V | 17@5V | 2.0-6.0 V | 8 | Low Power or Battery Applications | CMOS | +/- 7.8 mA |
| 74HCT6323AD | SOT96-1
(SO8) | Programmable Ripple Counter with Oscillator; TTL Enabled (3-State) | 90 | 17 | 4.5-5.5 V | 8 | Low Power | TTL | +/- 6 mA |
Similar products
74HC/HCT6323A links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
Disclaimer
The information published on product information pages of the www.nxp.com or www.semiconductors.com websites is an extract from product data sheets and is for information purposes only. For detailed information please check the most recent version of the relevant product data sheet as published on these websites. In the event of any conflict between product information pages and data sheets or deviations from information provided in the product data sheets on these product information pages, the information provided in the product data sheets shall prevail.
The product status of the product(s) described in the product data sheet may have changed since publication of the data sheet and therefore information in datasheets on product status may be outdated. The latest information on product status is published on the product information pages of the above-mentioned websites.
As from October 1st, 2006 Philips Semiconductors has a new trade name - NXP Semiconductors, which will be used in future data sheets together with new contact details. In data sheets where the previous Philips references remain, please use the new links as shown below.
- http://www.philips.semiconductors.com use http://www.nxp.com
- http://www.semiconductors.philips.com use http://www.nxp.com (Internet)
- sales.addresses@www.semiconductors.philips.com use salesaddresses@nxp.com (e-mail)
The copyright notice at the bottom of each page (or elsewhere in the document, depending on the version)
- © Koninklijke Philips Electronics N.V. (year). All rights reserved -
is replaced with:
- © NXP B.V. (year). All rights reserved.-
If you have any questions related to the data sheet, please contact our nearest sales office via e-mail or phone (details via salesaddresses@nxp.com). Thank you for your cooperation and understanding.