ST M74HC160 User Manual

M74HC160

SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

■HIGH SPEED :

fMAX = 62 MHz (TYP.) at VCC = 6V

■LOW POWER DISSIPATION: ICC =4μA(MAX.) at TA=25°C

■HIGH NOISE IMMUNITY: VNIH = VNIL = 28 % VCC (MIN.)

■SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN)

■BALANCED PROPAGATION DELAYS: tPLH tPHL

■WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V

■PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 160

DIP		SOP	TSSOP
ORDER CODES
PACKAGE		TUBE	T & R
DIP		M74HC160B1R
SOP		M74HC160M1R	M74HC160RM13TR
TSSOP			M74HC160TTR

DESCRIPTION

The M74HC160 is an high speed CMOS SYNCHRONOUS BCD DECADE PRESETTABLE COUNTER fabricated with silicon gate C2MOS technology.

The CLOCK input is active on the rising edge. Both LOAD and CLEAR inputs are active LOW. Presetting is synchronous on the rising edge of the clock, the function is cleared asynchronously.

Two enable inputs (TE and PE) and CARRY output are provided to enable easy cascading of counters, which facilities easy implementation of N-bit counters without using external gates.

All inputs are equipped with protection circuits against static discharge and transient excess voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

July 2001

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M74HC160

	INPUT AND OUTPUT EQUIVALENT CIRCUIT						PIN DESCRIPTION
								PIN No	SYMBOL	NAME AND FUNCTION
								1	CLEAR	Asynchronous Master
										Reset
								2	CLOCK	Clock Input (LOW to
										HIGH, Edge-triggered)
								3, 4, 5, 6	A, B, C, D	Data Inputs
								7	PE	Count Enable Input
								10	TE	Count Enable Carry Input
								9	LOAD	Parallel Enable Input
							14, 13, 12,		QA to QD	Flip Flop Outputs
								11
								15	CARRY	Terminal Count Output
								8	GND	Ground (0V)
								16	Vcc	Positive Supply Voltage
	TRUTH TABLE
			INPUTS				OUTPUTS			FUNCTION
	CLEAR	LOAD	PE	TE	CLOCK	QA	QB	QC	QD
	L	X	X	X	X	L	L	L	L	RESET TO "0"
	H	L	X	X		A	B	C	D	PRESET DATA
	H	H	X	L			NO CHANGE			NO COUNT
	H	H	L	X			NO CHANGE			NO COUNT
	H	H	H	H			COUNT UP			COUNT
	H	X	X	X			NO CHANGE			NO COUNT

X : Don’t Care

A, B, C, D : Logic level of data inputs

Carry : CARRY = TE·QA·QB·QC·QD

LOGIC DIAGRAM

This logic diagram has not be used to estimate propagation delays

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M74HC160

TIMING CHART

ABSOLUTE MAXIMUM RATINGS

Symbol	Parameter	Value	Unit
VCC	Supply Voltage	-0.5 to +7	V
VI	DC Input Voltage	-0.5 to VCC + 0.5	V
VO	DC Output Voltage	-0.5 to VCC + 0.5	V
IIK	DC Input Diode Current	± 20	mA
IOK	DC Output Diode Current	± 20	mA
IO	DC Output Current	± 25	mA
ICC or IGND	DC VCC or Ground Current	± 50	mA
PD	Power Dissipation	500(*)	mW
Tstg	Storage Temperature	-65 to +150	°C
TL	Lead Temperature (10 sec)	300	°C

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied

(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C

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M74HC160

RECOMMENDED OPERATING CONDITIONS

Symbol		Parameter		Value	Unit
VCC	Supply Voltage			2 to 6	V
VI	Input Voltage			0 to VCC	V
VO	Output Voltage			0 to VCC	V
Top	Operating Temperature			-55 to 125	°C
	Input Rise and Fall Time		VCC = 2.0V	0 to 1000	ns
tr, tf			VCC = 4.5V	0 to 500	ns
			VCC = 6.0V	0 to 400	ns

DC SPECIFICATIONS

			Test Condition						Value
Symbol	Parameter	VCC				TA = 25°C			-40 to 85°C		-55 to 125°C		Unit
		(V)			Min.		Typ.	Max.	Min.	Max.	Min.	Max.
VIH	High Level Input	2.0			1.5				1.5		1.5
	Voltage	4.5			3.15				3.15		3.15		V
		6.0			4.2				4.2		4.2
VIL	Low Level Input	2.0						0.5		0.5		0.5
	Voltage	4.5						1.35		1.35		1.35	V
		6.0						1.8		1.8		1.8
VOH	High Level Output	2.0		IO=-20 μA	1.9		2.0		1.9		1.9
	Voltage
		4.5		IO=-20 μA	4.4		4.5		4.4		4.4
		6.0		IO=-20 μA	5.9		6.0		5.9		5.9		V
		4.5		IO=-4.0 mA	4.18		4.31		4.13		4.10
		6.0		IO=-5.2 mA	5.68		5.8		5.63		5.60
VOL	Low Level Output	2.0		IO=20 μA			0.0	0.1		0.1		0.1
	Voltage
		4.5		IO=20 μA			0.0	0.1		0.1		0.1
		6.0		IO=20 μA			0.0	0.1		0.1		0.1	V
		4.5		IO=4.0 mA			0.17	0.26		0.33		0.40
		6.0		IO=5.2 mA			0.18	0.26		0.33		0.40
II	Input Leakage	6.0		VI = VCC or GND				± 0.1		± 1		± 1	μA
	Current
ICC	Quiescent Supply	6.0		VI = VCC or GND				4		40		80	μA
	Current

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