Texas Instruments CD74HCT4520M96, CD74HCT4520M, CD74HCT4520E, CD74HC4520M96, CD74HC4520M Datasheet

Data sheet acquired from Harris Semiconductor SCHS216

November 1997

CD74HC4518, CD74HC4520, CD74HCT4520

High Speed CMOS Logic

Dual Synchronous Counters

		Features			Description
		•	Positive or Negative Edge Triggering		The Harris CD74HC4518 is a dual BCD up-counter. The
	[ /Title	•	Synchronous Internal Carry Propagation		Harris CD74HC4520 and CD74HCT4520 are dual binary
					up-counters. Each device consists of two independent
	(CD74	•	Fanout (Over Temperature Range)		internally synchronous 4-stage counters. The counter stages
	HC451		- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads		are D-type flip-flops having interchangeable CLOCK and
	8,		-	Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads	ENABLE lines for incrementing on either the positive-going
					or the negative-going transition of CLOCK. The counters are
	CD74		Wide Operating Temperature Range . . . -55oC to 125oC
		•			cleared by high levels on the MASTER RESET lines. The
	HC452	•	Balanced Propagation Delay and Transition Times		counter can be cascaded in the ripple mode by connecting
	0,				Q3 to the ENABLE input of the subsequent counter while the
		• Significant Power Reduction Compared to LSTTL
	CD74				CLOCK input of the latter is held low.
			Logic ICs
	HCT45				Ordering Information
		• HC Types
	20)
			-	2V to 6V Operation
									PKG.
	/Sub-					TEMP. RANGE (oC)
			-	High Noise Immunity: NIL = 30%, NIH = 30% of VCC	PART NUMBER			PACKAGE	NO.
	ject
				at VCC = 5V
					CD74HC4518E	-55 to 125		16 Ld PDIP	E16.3
		• HCT Types
					CD74HC4520E	-55 to 125		16 Ld PDIP	E16.3
			- 4.5V to 5.5V Operation
			- Direct LSTTL Input Logic Compatibility,		CD74HCT4520E	-55 to 125		16 Ld PDIP	E16.3
				VIL= 0.8V (Max), VIH = 2V (Min)
					CD74HC4520M	-55 to 125		16 Ld SOIC	M16.15
			- CMOS Input Compatibility, Il ≤ 1μA at VOL, VOH
					CD74HCT4520M	-55 to 125		16 Ld SOIC	M16.15
					NOTES:
					1. When ordering, use the entire part number. Add the suffix 96 to
					obtain the variant in the tape and reel.
					2. Wafer or die for this part number is available which meets all elec-
					trical specifications. Please contact your local sales office or
					Harris customer service for ordering information.

Pinout

CD74HC4518

CD74HC4520, CD74HCT4520

(PDIP, SOIC)

TOP VIEW

1CP

1

16 VCC

1E	2	15	2MR
1Q0	3	14	2Q3
1Q1	4	13	2Q2
1Q2	5	12	2Q1
1Q3	6	11	2Q0

1MR	7	10	2E
GND	8	9	2CP

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.	File Number 1665.1

Copyright © Harris Corporation 1997

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CD74HC4518, CD74HC4520, CD74HCT4520

Functional Diagram

			1	÷10/÷16	3
		1CP			1Q0
					4
			2	CL	1Q1
		1E			5
					1Q2
				R	6
					1Q3
		1MR	7
			9	÷10/÷16	11
		2CP			2Q0
					12
		2E 10		CL	2Q1
					13
					2Q2
				R	14 2Q3
		2MR 15			GND = 8
					VCC = 16
				TRUTH TABLE
	CP		E	MR	OUTPUT STATE
	−		H	L	Increment Counter
	L		↓	L	Increment Counter
	↓		X	L	No Change
	X		−	L	No Change
	−		L	L	No Change
	H		↓	L	No Change
	X		X	H	Q0 thru Q3 = L
NOTE:
H	= High State.
L	= Low State.
− = High-to-Low Transition.
↓ = Low-to-High Transition.
X	= Don’t Care.

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CD74HC4518, CD74HC4520, CD74HCT4520

Absolute Maximum Ratings

DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . .	-0.5V to 7V
DC Input Diode Current, IIK	±20mA
For VI < -0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . .
DC Output Diode Current, IOK	±20mA
For VO < -0.5V or VO > VCC + 0.5V . . . . . . . . . . . . . . . .
DC Output Source or Sink Current per Output Pin, IO	±25mA
For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . .
DC VCC or Ground Current, ICC . . . . . . . . . . . . . . . . . . . . .	. . . .±50mA

Thermal Information
Thermal Resistance (Typical, Note 3)	θJA (oC/W)
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 90
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 160
Maximum Junction Temperature . . . . . . . . . . . . . . . .	. . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . .	-65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . .	. . . . . . . 300oC
(SOIC - Lead Tips Only)

Operating Conditions

Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC Supply Voltage Range, VCC

HC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V to 6V HCT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V

DC Input or Output Voltage, VI, VO . . . . . . . . . . . . . . . . . 0V to VCC Input Rise and Fall Time

2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000ns (Max) 4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500ns (Max) 6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400ns (Max)

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

3. θJA is measured with the component mounted on an evaluation PC board in free air.

DC Electrical Specifications

		TEST								-55oC TO
		CONDITIONS				25oC		-40oC TO 85oC		125oC
PARAMETER	SYMBOL	VI (V)	IO (mA)	VCC (V)	MIN	TYP	MAX	MIN	MAX	MIN	MAX	UNITS
HC TYPES
High Level Input	VIH	-	-	2	1.5	-	-	1.5	-	1.5	-	V
Voltage
				4.5	3.15	-	-	3.15	-	3.15	-	V
				6	4.2	-	-	4.2	-	4.2	-	V
Low Level Input	VIL	-	-	2	-	-	0.5	-	0.5	-	0.5	V
Voltage
				4.5	-	-	1.35	-	1.35	-	1.35	V
				6	-	-	1.8	-	1.8	-	1.8	V
High Level Output	VOH	VIH or VIL	-0.02	2	1.9	-	-	1.9	-	1.9	-	V
Voltage
			-0.02	4.5	4.4	-	-	4.4	-	4.4	-	V
CMOS Loads
			-0.02	6	5.9	-	-	5.9	-	5.9	-	V
High Level Output			-	-	-	-	-	-	-	-	-	V
Voltage
			-4	4.5	3.98	-	-	3.84	-	3.7	-	V
TTL Loads
			-5.2	6	5.48	-	-	5.34	-	5.2	-	V
Low Level Output	VOL	VIH or VIL	0.02	2	-	-	0.1	-	0.1	-	0.1	V
Voltage
			0.02	4.5	-	-	0.1	-	0.1	-	0.1	V
CMOS Loads
			0.02	6	-	-	0.1	-	0.1	-	0.1	V
Low Level Output			-	-	-	-	-	-	-	-	-	V
Voltage
			4	4.5	-	-	0.26	-	0.33	-	0.4	V
TTL Loads
			5.2	6	-	-	0.26	-	0.33	-	0.4	V
Input Leakage	II	VCC or	-	6	-	-	±0.1	-	±1	-	±1	μA
Current		GND
Quiescent Device	ICC	VCC or	0	6	-	-	8	-	80	-	160	μA
Current		GND

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