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HD74AC393
Dual Modulo-16-Counter
Description
The HD74AC393 contains a pair of high speed 4-stage ripple counters. Each half of the HD74AC393 operates as a modulo-16 binary divider, with the last three stages triggered in a ripple fashion. The flipflops are triggered by a High-to-Low transition of their CP inputs. Each half of each circuit type has a Master Reset input which responds to a High signal by forcing all four outputs to the Low state.
Feature
* Outputs Source/Sink 24 mA
Pin Arrangement
CP 1 MR 2 Q0 3 Q1 4 Q2 5 Q3 6 GND 7 (Top view)
14 VCC 13 CP 12 MR 11 Q0 10 Q1 9 Q2 8 Q3
HD74AC393
Logic Symbol (each half)
1, 13
CP
MR
Q0
Q1
Q2
Q3
2, 12
3, 11
4, 10
5, 9
6, 8
Vcc=Pin14 GND=Pin7
Pin Names
CP MR Q0 - Q3 Clock Pulse Input (Active Falling Edge) Asynchronous Master Reset Input (Active High) Flip-flop Outputs
Functional Description
Each half of the HD74AC393 operates in the modulo-16 binary sequence, as indicated in the + 16 Truth Table. The first flip-flop is triggered by High-to-Low transitions of the CP input signal. Each of the other flip-flops is triggered by a High-to-Low transition of the Q output of the preceding flip-flop. Thus state changes of the Q outputs do not occur simultaneously. This means that logic signals derived from combinations of these outputs will be subject to decoding spikes and, therefore, should not be used as clocks for other counters, registers or flip-flops. A High signal on MR forces all outputs to the Low state and prevents counting.
2
HD74AC393
Truth Table
Outputs Count 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 H: L: Q3 L L L L L L L L H H H H H H H H High Voltage Level Low Voltage Level Q2 L L L L H H H H L L L L H H H H Q1 L L H H L L H H L L H H L L H H Q0 L H L H L H L H L H L H L H L H
Logic Diagram (one, half shown)
CP K CD Q MR Q0 Q1 Q2 Q3 CP J K CD Q CP J K CD Q CP J K CD Q CP J
3
HD74AC393
DC Characteristics (unless otherwise specified)
Item Maximum quiescent supply current Maximum quiescent supply current Symbol I CC I CC Max 80 8.0 Unit A A Condition VIN = VCC or ground, VCC = 5.5 V, Ta = Worst case VIN = VCC or ground, VCC = 5.5 V, Ta = 25C
AC Characteristics: HD74AC393
Ta = +25C CL = 50 pF Item Maximum clock frequency Propagation delay CP to Q 0 Propagation delay CP to Q 0 Propagation delay CP to Q 1 Propagation delay CP to Q 1 Propagation delay CP to Q 2 Propagation delay CP to Q 2 Propagation delay CP to Q 3 Propagation delay CP to Q 3 Propagation delay MR to Q0, Q1, Q2 or Q3 Note: t PHL t PHL t PLH t PHL t PLH t PHL t PLH t PHL t PLH Symbol f max VCC (V)*1 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 Min 125 150 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Typ -- -- 8.5 6.5 8.0 6.0 12.0 9.5 11.5 9.0 15.0 12.0 14.5 11.5 18.0 14.5 17.5 14.0 10.5 8.5 Max -- -- 12.0 9.0 11.5 8.5 15.0 12.0 14.5 11.5 18.0 14.5 17.5 14.0 20.5 17.0 20.0 16.5 14.0 11.0 Ta = -40C to +85C CL = 50 pF Min 100 125 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Max -- -- 13.0 10.0 12.5 9.5 16.0 13.0 15.5 12.5 19.5 16.0 19.0 15.5 22.0 18.5 21.5 17.5 15.0 12.0 ns ns ns ns ns ns ns ns ns Unit MHz
1. Voltage Range 3.3 is 3.3 V 0.3 V Voltage Range 5.0 is 5.0 V 0.5 V
4
HD74AC393
AC Operating Requirements: HD74AC393
Ta = +25C CL = 50 pF Item Pulse width CP Recovery time MR to CP Note: Symbol tw VCC (V)*1 Typ 3.3 5.0 t rec 3.3 5.0 1. Voltage Range 3.3 is 3.3 V 0.3 V Voltage Range 5.0 is 5.0 V 0.5 V 3.5 2.5 -2.5 -2.5 Ta = -40C to +85C CL = 50 pF Guaranteed Minimum 5.5 4.5 0.0 0.0 7.0 5.0 0.0 0.0 ns Unit ns
Capacitance
Item Input capacitance Power dissipation capacitance Symbol CIN CPD Typ 4.5 50 Unit pF pF Condition VCC = 5.5 V VCC = 5.0 V
5
Unit: mm
19.20 20.32 Max 14 8 6.30 7.40 Max 1
2.39 Max
1.30
7 7.62
0.51 Min
2.54 Min 5.06 Max
2.54 0.25
0.48 0.10
0.25 - 0.05 0 - 15
+ 0.10
Hitachi Code JEDEC EIAJ Weight (reference value)
DP-14 Conforms Conforms 0.97 g
Unit: mm
10.06 10.5 Max 14 8 5.5 1 7 *0.22 0.05 0.20 0.04 2.20 Max 7.80 - 0.30 1.15 0 - 8 0.70 0.20
+ 0.20
1.42 Max
1.27 *0.42 0.08 0.40 0.06
0.12 M
Hitachi Code JEDEC EIAJ Weight (reference value) FP-14DA -- Conforms 0.23 g
*Dimension including the plating thickness Base material dimension
0.10 0.10 0.15
Unit: mm
8.65 9.05 Max 14 8 3.95 1 1.75 Max 7
*0.20 0.05
6.10 - 0.30 1.08
+ 0.10
0.635 Max
0 - 8
0.11 0.14 + 0.04 -
1.27 *0.40 0.06
0.67 0.60 + 0.20 -
0.15 0.25 M
Hitachi Code JEDEC EIAJ Weight (reference value) FP-14DN Conforms Conforms 0.13 g
*Pd plating
Unit: mm
5.00 5.30 Max 14 8 4.40 1 *0.22+0.08 -0.07 7 0.65 1.0 0.13 M 0.83 Max *0.17 0.05 0.15 0.04 1.10 Max 6.40 0.20 0 - 8 0.50 0.10 0.20 0.06
0.10
0.07 +0.03 -0.04
*Dimension including the plating thickness Base material dimension
Hitachi Code JEDEC EIAJ Weight (reference value)
TTP-14D -- -- 0.05 g
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi's or any third party's patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party's rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi's sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi's sales office for any questions regarding this document or Hitachi semiconductor products.
Hitachi, Ltd.
Semiconductor & Integrated Circuits. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109
URL
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Hitachi Semiconductor (America) Inc. 179 East Tasman Drive, San Jose,CA 95134 Tel: <1> (408) 433-1990 Fax: <1>(408) 433-0223 Hitachi Europe GmbH Electronic components Group Dornacher Strae 3 D-85622 Feldkirchen, Munich Germany Tel: <49> (89) 9 9180-0 Fax: <49> (89) 9 29 30 00 Hitachi Europe Ltd. Electronic Components Group. Whitebrook Park Lower Cookham Road Maidenhead Berkshire SL6 8YA, United Kingdom Tel: <44> (1628) 585000 Fax: <44> (1628) 778322 Hitachi Asia Pte. Ltd. 16 Collyer Quay #20-00 Hitachi Tower Singapore 049318 Tel: 535-2100 Fax: 535-1533 Hitachi Asia Ltd. Taipei Branch Office 3F, Hung Kuo Building. No.167, Tun-Hwa North Road, Taipei (105) Tel: <886> (2) 2718-3666 Fax: <886> (2) 2718-8180 Hitachi Asia (Hong Kong) Ltd. Group III (Electronic Components) 7/F., North Tower, World Finance Centre, Harbour City, Canton Road, Tsim Sha Tsui, Kowloon, Hong Kong Tel: <852> (2) 735 9218 Fax: <852> (2) 730 0281 Telex: 40815 HITEC HX
Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.

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