m74hc4518m1r STMicroelectronics, m74hc4518m1r Datasheet

m74hc4518m1r

Manufacturer Part Number

m74hc4518m1r

Description

Hc4518 Dual Decade Counter Hc4520 Dual 4 Bit Binary Counter

Manufacturer

STMicroelectronics

Datasheet

1.M74HC4518M1R.pdf (13 pages)

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DESCRIPTION

The M54/74HC4518/4520 are high speed CMOS

DUAL 4 BIT BINARY COUNTERS fabricated in sili-

con gate C

high speed performance of LSTTL combined with

true CMOS low power consumption.

They consists of two identical internally syn-

chronous 4-stage counters. The counter stages are

D-type flip-flops having interchangeable Clock and

ENABLE inputs for incrementing on either the posi-

tive-going or negative-going transition.

For single-unit operation the ENABLE input is main-

tained ”high” and the counter advances on each

positive-going transition of the CLOCK. The

counters are cleared by high levels on their clear

lines. The counter can be cascaded in the ripple

mode by connecting Q4 to the enable input of the

subsequent counter while the clock input of the latter

is held permanently low.

All inputs are equipped with protection circuits

against static discharge and transient excess volt-

age.

March 1993

HIGH SPEED

LOW POWER DISSIPATION

HIGH NOISE IMMUNITY

OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS

SYMMETRICAL OUTPUT IMPEDANCE

BALANCED PROPAGATION DELAYS

WIDE OPERATING VOLTAGE RANGE

PIN AND FUNCTION COMPATIBLE WITH

4520B/4518B

MAX

PLH

NIH

= 4 A (MAX.) AT T

| = I

= t

(OPR) = 2 V TO 6 V

= 55 MHz (TYP.) at V

= V

PHL

NIL

MOS technology. They have the same

= 4 mA (MIN.)

= 28 % V

(MIN.)

= 25 C

= 5 V

HC4520 DUAL 4 BIT BINARY COUNTER

HC4518 DUAL DECADE COUNTER

NC =

No Internal

Connecti o n

(Plastic Package)

(Micro Package)

M54HCXXXXF1R

M74HCXXXXB1R

PIN CONNECTIONS (top view)

M1R

B1R

M54/M74HC4520

M54/M74HC4518

ORDER CODES :

M74HCXXXXM1R

M74HCXXXXC1R

(Ceramic Package)

(Chip Carrier)

C1R

F1R

1/13

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m74hc4518m1r Summary of contents

Page 1

HIGH SPEED . MHz (TYP MAX CC LOW POWER DISSIPATION . (MAX HIGH NOISE IMMUNITY . ...

Page 2

M54/M74HC4518/4520 LOGIC DIAGRAM (1/2 HC4518) LOGIC DIAGRAM (1/2 HC4520) 2/13 ...

Page 3

TIMING CHART (HC4518) TIMING CHART (HC4520) M54/M74HC4518/4520 3/13 ...

M54/M74HC4518/4520 TRUTH TABLE CLOCK Don’t Care Z: High Impedance PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1, 9 1CLOCK, Clock Inputs (LOW to 2CLOCK HIGH, Edge-triggered 1ENABLE, Clock Enable Inputs 2ENABLE 3, ...

Page 5

ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Source Sink Current Per Output Pin ...

Page 6

M54/M74HC4518/4520 DC SPECIFICATIONS Test Conditions Symbol Parameter V CC (V) V High Level Input 2.0 IH Voltage 4.5 6.0 V Low Level Input 2.0 IL Voltage 4.5 6.0 V High Level 2 Output Voltage 4.5 V 6.0 V ...

Page 7

AC ELECTRICAL CHARACTERISTICS (C Test Conditions Symbol Parameter V CC (V) t Output Transition 2.0 TLH t Time THL 4.5 6.0 t Propagation 2.0 PLH t Delay Time PHL 4.5 (CK Qn) 6.0 t Propagation 2.0 PHL Delay ...

Page 8

M54/M74HC4518/4520 SWITCHING CHARACTERISTICS TEST WAVEFORMS TEST CIRCUIT I (Opr.) CC INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF SWITCHING CHARACTERISTICS TESTS. 8/13 ...

Page 9

Plastic DIP16 (0.25) MECHANICAL DATA mm DIM. MIN. TYP. a1 0.51 B 0.77 b 0 8.5 e 2.54 e3 17. 3.3 Z M54/M74HC4518/4520 inch MAX. MIN. TYP. 0.020 1.65 0.030 0.020 0.010 20 ...

Page 10

M54/M74HC4518/4520 Ceramic DIP16/1 MECHANICAL DATA DIM. MIN 0. 2.29 G 0.4 H 1.17 L 0. 7.8 Q 10/13 mm TYP. MAX. MIN 3.3 0.015 17.78 2.79 0.090 0.55 ...

Page 11

SO16 (Narrow) MECHANICAL DATA mm DIM. MIN. TYP 0 0.35 b1 0. 9.8 E 5.8 e 1.27 e3 8.89 F 3.8 G 4 M54/M74HC4518/4520 inch MAX. MIN. TYP. ...

Page 12

M54/M74HC4518/4520 PLCC20 MECHANICAL DATA DIM. MIN. A 9.78 B 8. 12/13 mm TYP. MAX. MIN. 10.03 0.385 9.04 0.350 4.57 0.165 2.54 0.56 8.38 0.290 1.27 5.08 0.38 ...

Page 13

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its ...

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