INTEGRATED CIRCUITS 74HC/HCT9323A Programmable ripple counter with oscillator (3-State) Objective specification IC06 Data Handbook 1995 Oct 27 Philips Semiconductors Objective specification Programmable ripple counter with oscillator (3-State) FEATURES 74HC/HCT9323A DESCRIPTION • 8-pin space saving package • Programmable 3-stage ripple counter • Suitable for over-tone crystal application up to 85MHz The 74HC/HCT9323A are high-speed Si-gate CMOS devices. They are specified in compliance with JEDEC standard no. 7A. The HC/HCT 9323A 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-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. (VCC = 5V10%) • 3-State output buffer • Two internal capacitors • Recommended operating range for use with third overtone crystals 3V to 6V • Oscillator stop function (MR) • Output capability: 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. bus driver (15 LSTTL) • ICC category: MSI APPLICATIONS • Control counters • Timers • Frequency dividers • Time-delay circuits • CIO (Compact Integrated Oscillator) • Third-overtone crystal operation QUICK REFERENCE DATA GND = 0V; Tamb = 25°C, tr = tf = 6ns SYMBOL CONDITIONS Tamb = 25°C; GND = 0V PARAMETER HCT 8 8 ns Maximum clock frequency 150 150 MHz Input capacitance except X1 and X2 3.5 3.5 pF Propagation delay X1 to OUT (S1 = S2 = LOW) fmax CL = 50pF; VCC = 5V Power dissipation capacitance per package CPD UNIT HC tPLH tPHL CI TYPICAL pF NOTES: CPD is used to determine the dynamic power dissipation (PD in µW): = (CPD VCC2 fI) + (CL + VCC2 fO) + (Ipull-up VCC) PD where: = inputfrequency in MHz.. fI = output frequency in MHz. fO VCC = Supply voltage in V. = Output load capacitance in pF. CL Ipull-up = Pull-up currents in µA. For HC and HCT an external clock is applied to X1 with: tr = tf 6ns, VI is GND to VCC, MR = HIGH. Ipull-up is the summation of –II (µA) of S1 and S2 inputs at the LOW state. ORDERING INFORMATION PACKAGES 8-Pin Plastic SO 1995 Oct 27 TEMPERATURE RANGE ORDER NUMBER DWG NUMBER 0°C to +70°C 74HC/HCT9323A D SOT96-1 2 Philips Semiconductors Objective specification Programmable ripple counter with oscillator (3-State) PIN CONFIGURATION 74HC/HCT9323A IEC LOGIC SYMBOL 6 8 VCC OUT 1 S2 2 7 X1 S1 3 6 X2 GND 4 5 MR 7 X2 X1 CP 5 MR CD 3 S1 2 S2 OUT 1 SK00014 SK00013 PIN DESCRIPTION FUNCTION TABLE PIN NUMBER SYMBOL 1 OUT FUNCTION INPUTS Counter output 3, 2 S1-S2 Mode select inputs for divide by 1, 2, 4 or 8 4 GND Ground (0V) 5 MR Master reset (active LOW) 6 X2 Oscillator pin 7 X1 Clock input/oscillator pin 8 VCC OUTPUTS S1 S2 OUT 0 0 fI 0 1 fI/2 1 0 fI/4 1 1 fI/8 Positive supply voltage FUNCTIONAL DIAGRAM 6 X2 7 X1 5 MR 3-STAGE BINARY COUNTER AND DECODER CP CD S1 S2 3 OUT 2 1 SK00015 1995 Oct 27 3 Philips Semiconductors Objective specification Programmable ripple counter with oscillator (3-State) 74HC/HCT9323A LOGIC DIAGRAM X2 X1 CP 2pF Q CP Q CP Q FF FF FF R R R 2pF VCC VCC DECODER VCC VCC VCC OUT MR Internal capacitors typical 2pF each, including stray capacitors on pins X1 and X2, total capacitance will be typical 7pF per pin 1995 Oct 27 4 SK00016 Philips Semiconductors Objective specification Programmable ripple counter with oscillator (3-State) SO8: plastic small outline package; 8 leads; body width 3.9mm 1995 Oct 27 5 74HC/HCT9323A SOT96-1 Philips Semiconductors Objective specification Programmable ripple counter with oscillator (3-State) 74HC/HCT9323A DEFINITIONS Data Sheet Identification Product Status Definition Objective Specification Formative or in Design This data sheet contains the design target or goal specifications for product development. Specifications may change in any manner without notice. Preliminary Specification Preproduction Product This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. Product Specification Full Production This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes at any time without notice, in order to improve design and supply the best possible product. Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. LIFE SUPPORT APPLICATIONS Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices, or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 Philips Semiconductors and Philips Electronics North America Corporation register eligible circuits under the Semiconductor Chip Protection Act. Copyright Philips Electronics North America Corporation 1995 All rights reserved. Printed in U.S.A.