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HD74HC192/HD74HC193
Synchronous Up/Down Decade Counter (Dual Clock Line) Synchronous Up/Donw 4-bit Binary Counter (Dual Clock Line)
Description
The HD74HC192 is a decade counter, and the HD74HC193 is a binary counter. Both counters have two separate clock inputs, an up count input and a down count input. All outputs of the flip-flops are simultaneously triggered on the low to high transition of either clock while the other input is held high. The direction of counting is determined by which input is clocked. These counters may be preset by entering the desired data on the data A, data B, data C, and data D inputs. When the load input is taken low the data is loaded independently of either clock input. This feature allows the counters to be used as divide-by-n counters by modifying the count length with the preset inputs. In addition both counters can also be cleared. This is accomplished by inputting a high on the clear input. All 4 internal stages are set to a low level independently of either count input. Both a borrow and carry output are provided to enable cascading of both up and down counting functions. The borrow output produces a negative going pulse when the counter underflows and the carry outputs a pulse when the counter overflows. The counters can be cascaded by connecting the carry and borrow outputs of one device to the count up and count down inputs, respectively, of the next device.
Features
* * * * * High Speed Operation: tpd (Clock Up or Count Down to Q) = 21 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 A max Low Quiescent Supply Current: ICC (static) = 4 A max (Ta = 25C)
HD74HC192/HD74HC193
Pin Arrangement
Data B 1 Input QB 2 Outputs QA 3 Count Down Inputs Count Up 4 5 QB QA B A
16 VCC 15 Data A Inputs Clear 14 Clear 13 Borrow Outputs
Count Up
Count Borrow Down
Carry Load D C
12 Carry 11 Load 10 Data C 9 Data D Inputs
QC 6 Outputs QD 7 GND 8
QC QD
(Top view)
2
HD74HC192/HD74HC193
Logic Diagram
HD74HC192
Count Down Count Up
CK R Q CK S Q
Borrow
Carry
Data A
CK R Q CK S Q
QA
Data B
CK R Q CK S Q
QB
QC
CK R Q CK S Q
Data C
QD
Data D Load Clear
3
HD74HC192/HD74HC193
HD74HC193
Count Down Count Up
CK R Q CK S Q
Borrow
Carry
Data A
CK R Q CK S Q
QA
Data B
CK R Q CK S Q
QB
QC
CK R Q CK S Q
Data C
QD
Data D Load Clear
4
HD74HC192/HD74HC193
Timing Chart
HD74HC192 Illustrated below is the following sequence: 1. 2. 3. 4. Clear outputs to zero. Load (preset) to binary seven. Count up to eight, nine, zero, one and two. Count down to one, zero, borrow, nine, eight and seven.
Clear Load A Data Inputs B C D Count Up Count Down QA QB QC QD Carry Borrow 8 Sequence Illustrated 0 Clear 7 Preset 9 0 1 2 1 0 9 8 7 Count Up Count Down
5
HD74HC192/HD74HC193
HD74HC191 Illustrated below is the following sequence: 1. 2. 3. 4. Clear outputs to zero. Load (preset) to binary thirteen. Count up to fourteen, fifteen, zero, one and two. Count down to one, zero, borrow, fifteen and thirteen.
Clear Load A Data Inputs B C D Count Up Count Down QA QB Outputs QC QD Carry Borrow 0 13 14 15 0 1 2 1 0 15 14 13 Count Up Clear Preset Count Down
6
HD74HC192/HD74HC193
DC Characteristics
Ta = 25C Item Input voltage Symbol VIH Ta = -40 to +85C Max -- -- -- 0.5 1.35 1.8 -- -- -- -- -- 0.1 0.1 0.1 0.33 0.33 1.0 40 A A I OL = 4 mA I OL = 5.2 mA Vin = VCC or GND Vin = VCC or GND, Iout = 0 A V I OH = -4 mA I OH = -5.2 mA Vin = VIH or VIL I OL = 20 A V Vin = VIH or VIL I OH = -20 A V Unit V Test Conditions
VCC (V) Min Typ Max Min 2.0 4.5 6.0 1.5 -- 3.15 -- 4.2 -- -- -- -- -- -- -- -- -- -- 0.5 1.5 3.15 4.2 --
VIL
2.0 4.5 6.0
1.35 -- 1.8 -- 1.9 4.4 5.9 4.13 5.63 -- -- --
Output voltage
VOH
2.0 4.5 6.0 4.5 6.0
1.9 2.0 -- 4.4 4.5 -- 5.9 6.0 -- 4.18 -- 5.68 -- -- -- -- -- -- -- -- -- --
VOL
2.0 4.5 6.0 4.5 6.0
0.0 0.1 0.0 0.1 0.0 0.1 -- -- -- --
0.26 -- 0.26 -- 0.1 -- 4.0 --
Input current Quiescent supply current
Iin I CC
6.0 6.0
7
HD74HC192/HD74HC193
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25C Item Maximum clock frequency Symbol f max Ta = -40 to +85C Max 3 16 19 175 35 30 165 33 28 165 33 28 165 33 28 270 54 46 345 69 59 290 58 49 365 73 62 335 66 56 -- -- -- ns Clear to Q Load to Q Count up or down to Q Count down to Borrow ns Count up to Carry Unit MHz Test Conditions
VCC (V) Min Typ Max Min 2.0 4.5 6.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 80 16 14 -- -- -- -- 14 -- -- 15 -- -- 14 -- -- 15 -- -- 21 -- -- 21 -- -- 17 -- -- 23 -- -- 24 -- -- 8 - 4 20 24 -- -- --
Propagation delay t PLH time
2.0 4.5 6.0
140 -- 28 24 -- --
t PHL
2.0 4.5 6.0
130 -- 26 22 -- --
t PLH
2.0 4.5 6.0
130 -- 26 22 -- --
t PHL
2.0 4.5 6.0
130 -- 26 22 -- --
t PLH
2.0 4.5 6.0
215 -- 43 37 -- --
t PHL
2.0 4.5 6.0
275 -- 55 47 -- --
t PLH
2.0 4.5 6.0
230 -- 46 39 -- --
t PHL
2.0 4.5 6.0
290 -- 58 49 -- --
t PHL
2.0 4.5 6.0
265 -- 53 45 -- -- -- -- -- 100 20 17
Pulse width
tw
2.0 4.5 6.0
8
HD74HC192/HD74HC193
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) (cont)
Ta = 25C Item Hold time Symbol th Ta = -40 to +85C Max -- -- -- -- -- -- -- -- -- 95 19 16 10 pF ns ns Clear to Clock ns Data to Load Unit ns Test Conditions Data to Load
VCC (V) Min Typ Max Min 2.0 4.5 6.0 5 5 5 -- -3 -- -- -- -- -- -- -- -- -- -- 75 15 13 10 5 5 5 125 25 21 65 13 11 -- -- -- --
Setup time
t su
2.0 4.5 6.0
100 -- 20 17 50 10 9 -- -- -- -- 4 -- -- -1 -- -- 5 -- 5
Removal time
t rem
2.0 4.5 6.0
Output rise/fall time
t TLH t THL
2.0 4.5 6.0
Input capacitance
Cin
--
9
19.20 20.00 Max 16 9 7.40 Max 6.30
Unit: mm
1 1.3
1.11 Max
8
0.51 Min
2.54 Min 5.06 Max
7.62
2.54 0.25
0.48 0.10
0.25 - 0.05 0 - 15
Hitachi Code JEDEC EIAJ Weight (reference value)
+ 0.13
DP-16 Conforms Conforms 1.07 g
Unit: mm
10.06 10.5 Max 16 9
5.5
1
*0.22 0.05 0.20 0.04
8 0.80 Max
2.20 Max
0.20 7.80 + 0.30 -
1.15 0 - 8 0.70 0.20
1.27 *0.42 0.08 0.40 0.06
0.12 M
Hitachi Code JEDEC EIAJ Weight (reference value) FP-16DA -- Conforms 0.24 g
*Dimension including the plating thickness Base material dimension
0.10 0.10
0.15
Unit: mm
9.9 10.3 Max 16 9 3.95 1 1.27 0.635 Max 8
0.11 0.14 + 0.04 - 1.75 Max
*0.22 0.03 0.20 0.03
0.10 6.10 + 0.30 -
1.08 0 - 8
0.67 0.60 + 0.20 -
*0.42 0.08 0.40 0.06
0.15 0.25 M
*Dimension including the plating thickness Base material dimension
Hitachi Code JEDEC EIAJ Weight (reference value)
FP-16DN Conforms Conforms 0.15 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
NorthAmerica : http:semiconductor.hitachi.com/ Europe : http://www.hitachi-eu.com/hel/ecg Asia (Singapore) : http://www.has.hitachi.com.sg/grp3/sicd/index.htm Asia (Taiwan) : http://www.hitachi.com.tw/E/Product/SICD_Frame.htm Asia (HongKong) : http://www.hitachi.com.hk/eng/bo/grp3/index.htm Japan : http://www.hitachi.co.jp/Sicd/indx.htm For further information write to:
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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