当前位置：文档库 › HCC4520BF中文资料

HCC4520BF中文资料

1/11

October 2002s

MEDIUM SPEED OPERATION :6MHz (Typ.) at 10V s POSITIVE -OR NEGATIVE- EDGE TRIGGERING s SYNCHRONOUS INTERNAL CARRY PROPAGATION

s QUIESCENT CURRENT SPECIF. UP TO 20V s 5V, 10V AND 15V PARAMETRIC RATINGS s INPUT LEAKAGE CURRENT

I I = 100nA (MAX) AT V DD = 18V T A = 25°C s 100% TESTED FOR QUIESCENT CURRENT s MEETS ALL REQUIREMENTS OF JEDEC JESD13B "STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES"

DESCRIPTION

HCF4518B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology available in DIP and SOP packages. HCF4518B Dual BCD Up Counter consists of two identical, internal 4 stage counters. The counter stages are D-type Flip-Flops having interchangeable Clock and Enable lines for

incrementing on either the positive-going or negative going transitions. For single-unit operations the Enable input is maintained High and the counter advances on each positive going transition of the Clock. The counters are cleared by high levels on their Reset 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 low.

HCF4518B

DUAL BCD UP COUNTER

PIN CONNECTION

ORDER CODES

PACKAGE TUBE T & R DIP HCF4518BEY SOP

HCF4518BM1

HCF4518M013TR

HCF4518B

2/11

IINPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

FUNCTIONAL DIAGRAM

TRUTH TABLE

PIN No SYMBOL NAME AND FUNCTION 1CLOCK A Clock A input 2ENABLE A Enable A Input 7RESET A Reset A Input 3, 4, 5, 6

Q1A to Q4A Data Outputs 9CLOCK B Clock B input 10ENABLE B Enable B Input 15

RESET B Reset B Input 11,12,13,14

Q1B to Q4B

Data Outputs

8V SS

Negative Supply Voltage 16

V DD

Positive Supply Voltage

HCF4518B LOGIC DIAGRAM

TIMING CHART

3/11

HCF4518B

4/11

ABSOLUTE MAXIMUM RATINGS

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

All voltage values are referred to V SS pin voltage.

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter

Value Unit V DD Supply Voltage -0.5 to +22V V I DC Input Voltage -0.5 to V DD + 0.5

V I I DC Input Current

± 10mA P D Power Dissipation per Package

200mW Power Dissipation per Output Transistor 100mW T op Operating Temperature -55 to +125°C T stg

Storage Temperature

-65 to +150

°C

Symbol Parameter

Value Unit V DD Supply Voltage 3 to 20V V I Input Voltage

0 to V DD V T op

Operating Temperature

-55 to 125

°C

HCF4518B

5/11

DC SPECIFICATIONS

The Noise Margin for both "1" and "0" level is: 1V min. with V DD =5V, 2V min. with V DD =10V, 2.5V min. with V DD =15V

Symbol

Parameter

Test Condition

Value Unit

V I (V)V O (V)

|I O |(μA)V DD (V)

T A = 25°C -40 to 85°C -55 to 125°C Min.

Typ.Max.Min.

Max.Min.

Max.I L

Quiescent Current

0/550.045150150μA

0/10100.0410*******/15150.04206006000/20200.08

100

3000

V OH

High Level Output Voltage

0/5<15 4.95 4.95 4.95V

0/10<1109.959.959.950/15<11514.95

14.95

V OL

Low Level Output Voltage

5/0<150.050.050.05V

10/0<1100.050.050.0515/0

<1150.050.05

0.05

V IH

High Level Input Voltage 0.5/4.5<15 3.5 3.5 3.5V

1/9<1107771.5/13.5<11511

V IL

Low Level Input Voltage 4.5/0.5<15 1.5 1.5 1.5V

9/1<11033313.5/1.5<1154

I OH

Output Drive Current

0/5 2.5<15-1.36-3.2-1.1-1.1mA

0/5 4.6<15-0.44-1-0.36-0.360/109.5<110-1.1-2.6-0.9-0.90/1513.5<115-3.0-6.8-2.4-2.4I OL

Output Sink Current

0/50.4<150.4410.360.36mA

0/100.5<110 1.1 2.60.90.90/15 1.5<1

15 3.0

6.8 2.4 2.4

I I

Input Leakage Current

0/18

Any Input 18

±10-5±0.1±1±1μA C I

Input Capacitance

Any Input

7.5

HCF4518B

6/11

DYNAMIC ELECTRICAL CHARACTERISTICS (T amb = 25°C, C L = 50pF, R L = 200K ?, t r = t f = 20 ns)

(*) Typical temperature coefficient for all V DD value is 0.3 %/°C.

Symbol

Parameter

Test Condition

Value (*)Unit

V DD (V)Min.

Typ.Max.t PLH t PHL Propagation Delay Time

Clock or Enable to Output 5280560ns 101152301580160t PLH t PHL Propagation Delay Time

Reset to Output 5330650ns

101302251590170t TLH t THL Transition Time

5100200ns

1050100154080

t W

Clock Pulse Width

5200100ns

1010050157035t W

Reset Pulse Width

5250125ns

1011055158040t W

Enable Pulse Width

5400200ns

1020010015140

t r , t f

Clock or Enable Rise and Fall Time 515μs

1015155

f MAX

Maximum Clock Frequency

5 1.53MHz

10361548

t r , t f

Clock Input Rise or Fall Time

515μs

10515

HCF4518B

7/11

TEST CIRCUIT

C L = 50pF or equivalent (includes jig and probe capacitance)R L = 200K ?

R T = Z OUT of pulse generator (typically 50?)

WAVEFORM 1 : MINIMUM PULSE WIDTH AND REMOVAL TIME

(f=1MHz; 50% duty cycle)

HCF4518B

WAVEFORM 2 : PROPAGATION DELAY TIME, MINIMUM PULSE WIDTH (f=1MHz; 50% duty cycle)

TYPICAL APPLICATION

RIPPLE CASCADING OF FOUR COUNTERS WITH POSITIVE-EDGE TRIGGERING

8/11

HCF4518B Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.

? The ST logo is a registered trademark of STMicroelectronics

STMicroelectronics GROUP OF COMPANIES

Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States.

? https://www.wendangku.net/doc/4c12943127.html,

11/11