 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| HCC4541B HCF4541B PROGRAMMABLE TIMER 16 STAGE BINARI COUNTER LOW SYMMETRICAL OUTPUT RESISTANCE, TYPICALLY 100 OHM AT VDD = 15V OSCILLATOR FREQUENCY RANGE : DC TO 100kHz AUTO OR MASTER RESET DISABLES OSCILLATOR DURING RESET TO REDUCE POWER DISSIPATION OPERATES WITH VERY SLOW CLOCK RISE AND FALL TIMES BUILT-IN LOW-POWER RC OSCILLATOR EXTERNAL CLOCK (applied to pin 3) CAN BE USED INSTEAD OF OSCILLATOR OPERATES AS 2N FREQUENCY DIVIDER OR AS A SINGLE-TRANSITION TIMER Q/Q SELECT PROVIDES OUTPUT LOGIC LEVEL FLEXIBILITY CAPABLE OF DRIVING SIX LOW POWER TTL LOADS, THREE LOW-POWER SCHOTTKY LOADS, PR SIX HTL LOADS OVER THE RATED TEMPERATURE RANGE SYMMETRICAL OUTPUT CHARACTERISTICS 100% TESTED FOR QUIESCENT CURRENT AT 20V 5-10-15V PARAMETRIC RATINGS MEETS ALL REQUIREMENTS OF JEDEC TENTATIVE STANDARD N 13A, "STANDARD SPECIFICATIONS FOR DESCRIPTION OF ' B ' SERIES CMOS DEVICES" DESCRIPTION The HCC/HCF4541B Programmable Timer is composed of a 16-stage binary counter, an oscillator controlled by 2 external resistors and a capacitor, an output control logic and an automatic power-on reset circuit. The counter varies on positive-edge clock transation and it can be cleared by the MASTER RESET input. The output from this timer is the Q or Q output from the 8th, 13th, or 16th counter stage. The choice of the stage depends on the timeselect inputs A or B (see frequency selection table). The output is available in one of the two modes that can be selected via the MODE input, pin 10 (see truth table). The output turns out as a continuous square wave, with a frequency equal to the oscillator frequency divided by 2N. When this MODE input is November 1996 1/11 EY (Plastic Package) F (Ceramic Frit Seal Package) M1 C1 (Micro Package) (Plastic Chip Carrier) ORDER CODES : HCC4541 BF HCF4541 BM1 HCF4541 BEY HCF4541 BC1 PIN CONNECTION (top view) HCC/HCF4541B a logic " 1 ", when it is a logic " 0 " and after a MASTER RESET is started, and Q output has been selected, the output goes up to a high state after 2N-1 counts. It remains in that state till another MASTER RESET pulse is apply or the mode input is a logic " 1 ". The process starts by setting the AUTO RESET input (pin 5) to logic " 0 " and switching power on. If pin 5 is set to logic " 1 ", the AUTO RESET circuit is not enabled and counting cannot start till a positive MASTER RESET pulse is applied, returning to a low level. The AUTO RESET consumes a remarkable RC Oscillator Circuit. amount of power and should not be used if lowpower operation is wanted. The frequency of the oscillator depends on the RC network. It can be calculated using the following formula: 1 f= 2.3 RTC CTC where f is between 1 kHz and 100 kHz and RS 10 k and 2 RTC FUNCTIONAL DIAGRAM 2/11 HCC/HCF4541B ABSOLUTE MAXIMUM RATINGS Symbol VDD* VI II Ptot Supply Voltage : Input Voltage DC Input Current (any one input) Total Power Dissipation (per package) Dissipation per Output Transistor for Top = Full Package-temperature range Operating Temperature : HCC Types HCF Types Storage Temperature Parameter HCC Types HCF Types Valu e - 0.5 to + 20 - 0.5 to + 18 - 0.5 to V DD + 0.5 10 200 100 - 55 to + 125 - 40 to + 85 - 65 to + 150 Unit V V V mA mW mW C C C Top Tstg Stresses above those listed under " Absolute Maximum Ratings " may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. * All voltages are with respect to VSS (GND). RECOMMENDED OPERATING CONDITIONS Symbol VDD VI Top Supply Voltage : Input Voltage Operating Temperature : HCC Types HCF Types Parameter HCC Types HCF Types Valu e 3 to 18 3 to 15 0 to VDD - 55 to 125 - 40 to 85 Unit V V V C C LOGIC DIAGRAM 3/11 HCC/HCF4541B STATIC ELECTRICAL Test Conditio ns Symbol Parameter VI (V) 0/5 HCC 0/10 Types 0/15 0/20 0/5 HCF Types 0/10 0/15 VOH Output High Voltage 0/5 0/10 0/15 VOL Output Low Voltage 5/0 10/0 15/0 VIH Input High Voltage 1/9 <1 <1 <1 <1 <1 <1 0.5/4.5 < 1 <1 1.5/13.5 < 1 VIL Input Low Voltage 4.5/0.5 < 1 9/1 0/5 HCC 0/5 Types 0/10 0/15 0/5 HCF 0/5 Types 0/10 0/15 IOL Output Sink Current 0/5 HCC Types 0/10 0/15 HCF Types 0/10 0/15 IIH, IIL Input Leakage Current Input Capacitance 0/18 0/5 4.6 2.5 9.5 13.5 4.6 2.5 9.5 13.5 0.4 0.5 1.5 0.4 0.5 1.5 Any Input Any Input <1 13.5/1.5 < 1 IOH Output Drive Current VO (V) IO V (uA D D (V) ) 5 10 15 20 5 10 15 5 10 15 5 10 15 5 10 15 5 10 15 5 5 10 15 5 5 10 15 5 10 15 5 10 15 18 - 1.9 - 6.2 - 5.0 - 12.6 - 1.85 - 6.0 - 4.8 - 12 1.9 5.0 12.6 1.85 4.8 12 0.1 3.5 7 11 1.5 3 4 - 1.55 - 3.1 -5 -4 - 10 -5 -4 - 10 1.55 4 10 1.55 4 10 - 10 -8 - 20 - 10 -8 - 20 3.1 8 20 3.1 8 20 0.1- 5 Valu e TLow Min. Max. 5 10 20 100 5 10 20 4.95 9.95 14.95 0.05 0.05 0.05 3.5 7 11 1.5 3 4 - 1.08 -3 - 2.8 - 7.2 - 1.26 - 4.1 - 3.3 - 8.4 1.08 2.8 7.2 1.26 3.3 8.4 0.1 7.5 1 A pF mA mA 4.95 9.95 14.95 0.05 0.05 0.05 3.5 7 11 1.5 3 4 V V Min. 25C T High Unit Typ. Max. Min. Max. 0.04 0.04 0.04 0.08 0.04 0.04 0.04 5 10 20 100 5 10 20 4.95 9.95 14.95 0.05 0.05 0.05 V V 150 300 600 3000 150 300 600 A IL Quiescent Current - 1.55 - 3.1 CI 5 * TLow = - 55C for HCC device : - 40C for HCF device. * THigh = + 125C for HCC device : + 85C for HCF device. The Noise Margin for both " 1 " and " 0 " level is : 1V min. with VDD = 5V 2V min. with VDD = 10V 2.5V min. with VDD = 15V 4/11 HCC/HCF4541B DYNAMIC ELECTRICAL CHARACTERISTICS (Tamb = 25C, CL = 50pF, RL = 200k, typical temperature coefficient for all VDD values is 0.3%/C, all input rise and fall time = 20ns) Symbol (28) tPHL tPLH (216) tPHL tPLH tTHL Transition Time Parameter Propagation Delay Time Clock to Q VDD (V) 5 10 15 5 10 15 5 10 15 tTLH 5 10 15 Master Reset, Clock Pulse Width 5 10 15 fCL Maximum Clock Pulse Input Frequency 5 10 15 tr, tf Maximum Clock Pulse Input Rise or Fall Time 5 10 15 Unlimited s 900 300 225 Valu es Min. Typ. 3.5 1.25 0.9 6 3.5 2.5 100 50 40 180 90 65 300 100 85 1.5 4 6 MHz ns Max. 10.5 3.8 2.9 18 10 7.5 200 100 80 360 180 130 ns s s Unit 5/11 HCC/HCF4541B DIGITAL TIMER APPLICATION A positive MASTER RESET pulse clears the counters and latch. The output goes high and keeps up till the number of pulses, selected by A and B, are counted. This circuit is retriggerable and is as accurate as the input frequency. If a more accurate circuit is desired, an external clock can be used on pin 3. A set-up time equal to the width of the one shot output is required immediately following initial power up, during which time the output will be high. FREQUENCY SELECTION TABLE A 0 0 1 1 B 0 1 0 1 N of Stages N 13 10 18 16 Count 2N 8192 1024 256 65536 TRUTH TABLE Pin 5 6 9 10 State 0 Auto Reset On Master Reset Off Output Initially Low After Reset (Q) Single Transition Mode 1 Auto Reset Disable Master Reset On Output Initially High After Reset (Q) Recycle Mode 6/11 HCC/HCF4541B Plastic DIP14 MECHANICAL DATA mm MIN. a1 B b b1 D E e e3 F I L Z 1.27 3.3 2.54 0.050 8.5 2.54 15.24 7.1 5.1 0.130 0.100 0.51 1.39 0.5 0.25 20 0.335 0.100 0.600 0.280 0.201 1.65 TYP. MAX. MIN. 0.020 0.055 0.020 0.010 0.787 0.065 inch TYP. MAX. DIM. P001A 7/11 HCC/HCF4541B Ceramic DIP14/1 MECHANICAL DATA mm MIN. A B D E e3 F G H L M N P Q 7.8 2.29 0.4 1.17 0.22 1.52 0.38 15.24 2.79 0.55 1.52 0.31 2.54 10.3 8.05 5.08 0.307 0.090 0.016 0.046 0.009 0.060 3.3 0.015 0.600 0.110 0.022 0.060 0.012 0.100 0.406 0.317 0.200 TYP. MAX. 20 7.0 0.130 MIN. inch TYP. MAX. 0.787 0.276 DIM. P053C 8/11 HCC/HCF4541B SO14 MECHANICAL DATA DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F G L M S 3.8 4.6 0.5 8.55 5.8 1.27 7.62 4.0 5.3 1.27 0.68 8 (max.) 0.149 0.181 0.019 8.75 6.2 0.35 0.19 0.5 45 (typ.) 0.336 0.228 0.050 0.300 0.157 0.208 0.050 0.026 0.344 0.244 0.1 mm TYP. MAX. 1.75 0.2 1.65 0.46 0.25 0.013 0.007 0.019 0.003 MIN. inch TYP. MAX. 0.068 0.007 0.064 0.018 0.010 P013G 9/11 HCC/HCF4541B PLCC20 MECHANICAL DATA mm MIN. A B D d1 d2 E e e3 F G M M1 1.27 1.14 7.37 1.27 5.08 0.38 0.101 0.050 0.045 9.78 8.89 4.2 2.54 0.56 8.38 0.290 0.050 0.200 0.015 0.004 TYP. MAX. 10.03 9.04 4.57 MIN. 0.385 0.350 0.165 0.100 0.022 0.330 inch TYP. MAX. 0.395 0.356 0.180 DIM. P027A 10/11 HCC/HCF4541B Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequ ences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical compone in life support devices or systems without express nts written approval of SGS-THOMSON Microelectonics. (c) 1996 SGS-THOMSON Microelectronics - Printed in Italy - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A . 11/11 |
Price & Availability of HCF4541
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |