SGS Thomson Microelectronics HCF4541B Datasheet

16 STAGEBINARI COUNTER
LOWSYMMETRICALOUTPUT RESISTANCE,
TYPICALLY 100 OHM ATVDD=15V
OSCILLATOR FREQUENCY RANGE : DC TO
100kHz
AUTOOR MASTER RESET DISABLES OSCIL­LATORDURINGRESET TOREDUCE POWER
DISSIPATION
OPERATESWITH VERY SLOW CLOCK RISE
AND FALL TIMES
BUILT-INLOW-POWER RC OSCILLATOR
EXTERNAL CLOCK (applied to pin 3) CAN BE
USEDINSTEAD OF OSCILLATOR
OPERATESAS 2NFREQUENCY DIVIDER OR
AS A SINGLE-TRANSITION TIMER
Q/Q SELECT PROVIDES OUTPUT LOGIC
LEVELFLEXIBILITY
CAPABLEOF DRIVINGSIXLOW POWERTTL
LOADS, THREE LOW-POWER SCHOTTKY
LOADS, PR SIX HTL LOADS OVER THE
RATEDTEMPERATURE RANGE
SYMMETRICAL OUTPUT CHARAC­TERISTICS
100% TESTED FOR QUIESCENT CURRENT
AT 20V
5-10-15VPARAMETRICRATINGS
MEETSALLREQUIREMENTSOFJEDECTEN­TATIVESTANDARD N13A, ”STANDARDSPE­CIFICATIONS FOR DESCRIPTION OF ’ B ’
SERIESCMOS DEVICES”

HCC4 54 1B

HCF4541B

PROGRAMMABLE TIMER

EY

(Plastic Package)

M1

(Micro Package)

ORDER CODE S :

HCC 4541 BF HCF4541 BM 1
HCF4541 BE Y HCF4541 BC1

PIN CO NNECTION (top vie w)

(Ceramic Frit Seal Package)

(Plastic Chip Carrier)

F

C1

DESCRI PTION

TheHCC/HCF4541B Programmable Timeriscom­posed of a 16-stage binary counter, an oscillator
controlled by2 externalresistorsand a capacitor,an
output control logic and an automatic power-on
reset circuit. The counter varies on positive-edge
clocktransation and it can be cleared by the MAS­TER RESETinput.The outputfrom thistimer is the
Q or Q output from the 8th, 13th, or 16th counter
stage.Thechoice ofthestagedepends on thetime­selectinputsA or B (seefrequency selection table).
The output isavailable inone ofthe two modes that
can be selected via the MODE input, pin 10 (see
truth table). The output turns out as a continuous
squarewave,with afrequencyequaltotheoscillator
frequency divided by 2N. When this MODE input is

November1996

1/11

HCC/HCF4541B

a logic” 1 ”, whenit is a logic ” 0 ” andafter a MAS­TER RESET is started, and Q output has been se­lected, the output goes up to a high stateafter 2

N-1

counts.It remainsin thatstate till anotherMASTER
RESETpulse is apply or the mode inputis a logic ”
1 ”. Theprocess starts bysettingtheAUTO RESET
input(pin 5) to logic ” 0 ” and switching poweron. If
pin 5 is setto logic ”1 ”, the AUTORESETcircuitis
not enabled and counting cannot start till a positive
MASTERRESETpulse isapplied, returningtoalow
level. The AUTO RESET consumes a remarkable

RC OscillatorCircuit.

amount of power and should not be used if low­poweroperation is wanted.

The frequency of the oscillator depends on the RC
network. Itcanbe calculated usingthefollowing for­mula:

f =

1

2.3 RTCC

TC

wheref is between 1 kHz and 100 kHz
and RS ≥ 10 kΩ and ≈ 2R

TC

FUNCTIONAL DIAGRAM

2/11

HCC/HCF4541B

ABSOLU TE M AXIMU M R AT INGS

Symbol Parameter Value Unit

* Supply Voltage: HCC Types

V

DD

HCF Types

Input Voltage – 0.5to VDD+ 0.5 V

V

I

I

DC Input Current (anyone input) ± 10 mA

I

Total Power Dissipation (perpackage)

P

tot

Dissipation per Output Transistor
for T

= FullPackage-temperature range

op

T

Operating Temperature : HCC Types

op

HCF Types

T

Storage Temperature – 65to + 150 °C

stg

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).

RECO MM ENDED OPERAT IN G CO NDITI ONS

Symbol Paramet er Value Unit

Supply Voltage : HCC Types

V

DD

InputVoltage 0 to V

V

I

Operating Temperature : HCC Types

T

op

HCF Types

HCF Types

– 0.5to + 20
– 0.5to + 18

200
100

– 55to + 125

–40to+85

3to 18
3to 15

DD

– 55to 125

–40to85

V
V

mW
mW

°C
°C

V
V

V

°C
°C

LOGI C DI AGRAM

3/11

HCC/HCF4541B

STATIC ELECTRICAL

Test Conditions Value

I

Symbol Parameter

Quiescent

I

L

Current

HCC

Types

V

(V)

V

I

(V)

0/5 5 5 0.04 5 150
0/10 10 10 0.04 10 300
0/15 15 20 0.04 20 600

O

(uA

)

V

(V)

DD

O

0/20 20 100 0.08 100 3000

0/5 5 5 0.04 5 150

HCF

Types

0/10 10 10 0.04 10 300
0/15 15 20 0.04 20 600

V

OH

OutputHigh
Voltage

0/5 < 1 5 4.95 4.95 4.95
0/10 < 1 10 9.95 9.95 9.95
0/15 < 1 15 14.95 14.95 14.95

V

OL

OutputLow
Voltage

5/0 < 1 5 0.05 0.05 0.05
10/0 < 1 10 0.05 0.05 0.05
15/0 < 1 15 0.05 0.05 0.05

V

IH

InputHigh
Voltage

0.5/4.5 < 1 5 3.5 3.5 3.5
1/9 < 1 10 7 7 7

1.5/13.5 < 1 15 11 11 11

V

IL

InputLow
Voltage

4.5/0.5 < 1 5 1.5 1.5 1.5
9/1 < 1 10 3 3 3

13.5/1.5 < 1 15 4 4 4

Output

I

OH

Drive
Current

HCC

Types

0/5 4.6 5 – 1.9 – 1.55 – 3.1 – 1.08

0/5 2.5 5 – 6.2 – 5 – 10 – 3
0/10 9.5 10 – 5.0 – 4 – 8 – 2.8
0/15 13.5 15 – 12.6 – 10 – 20 – 7.2

0/5 4.6 5 – 1.85 – 1.55 – 3.1 – 1.26

0/5 2.5 5 – 6.0 – 5 – 10 – 4.1

HCF

Types

0/10 9.5 10 – 4.8 – 4 – 8 – 3.3
0/15 13.5 15 – 12 – 10 – 20 – 8.4

Output

I

OL

Sink
Current

HCC

Types

0/5 0.4 5 1.9 1.55 3.1 1.08
0/10 0.5 10 5.0 4 8 2.8
0/15 1.5 15 12.6 10 20 7.2

0/5 0.4 5 1.85 1.55 3.1 1.26

HCF

Types

0/10 0.5 10 4.8 4 8 3.3
0/15 1.5 15 12 10 20 8.4

Input

I

IH,IIL

Leakage

0/18 Any Input 18 ± 0.1

Current
InputCapacitance Any Input 5 7.5 pF

C

I

*T

= - 55C for HCC device : - 40C for HCF device.

Low

*T

= + 125C for HCC device : + 85C for HCF device.

High

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

T

Low

25°CT

High

Min. Max. Min. Typ. Max. Min. Max.

–

± 0.1

± 0.1 ± 1 µA

5

Unit

µA

V

V

V

V

mA

mA

4/11

HCC/HCF4541B

DYNAMICELECTRICAL CHARACTERISTICS (T

=25°C, CL= 50pF, RL=200kΩ,

amb

typicaltemperature coefficient for allVDDvalues is 0.3%/°C, all input riseand fall time = 20ns)

Symbol Parameter

8

(2

)

Propagation Delay Time

t

Clock toQ

PHL

t

PLH

16

)

(2

t

PHL

t

PLH

Transition Time 5 100 200

t

THL

t

TLH

Master Reset,Clock Pulse Width 5 900 300

f

Maximum Clock Pulse Input Frequency 5 1.5

CL

tr,tf Maximum Clock Pulse InputRise or FallTime 5

VDD

(V)

5 3.5 10.5
10 1.25 3.8
15 0.9 2.9

5618
10 3.5 10
15 2.5 7.5

10 50 100
15 40 80

5 180 360
10 90 180
15 65 130

10 300 100
15 225 85

10 4
15 6

10
15

Values

Min. Typ. Max.

Unlimited µs

Unit

µs

µs

ns

ns

MHz

5/11

HCC/HCF4541B

DIGITAL TIMER A PPLICATION

A positive MASTER RESET pulse clears the
counters andlatch.The outputgoeshighand keeps
up tillthenumber ofpulses,selected byAandB, are
counted.Thiscircuitis retriggerable andisas accur­ate as theinputfrequency. If amoreaccuratecircuit
is desired, an external clock can be used on pin 3.
A set-uptime equal tothe width oftheone shot out­put is required immediately following initial power
up, during which time theoutput will be high.

FREQUENC Y S ELECT ION TA BL E TRUTH TABLE

AB

0 0 13 8192
0 1 10 1024
1 0 18 256
1 1 16 65536

N°of Stages

N

Count

N

2

Pin

5 Auto Reset On AutoReset Disable
6 MasterReset Off Master Reset On

9

Low After Reset (Q)

10 SingleTransition Mode Recycle Mode

01

OutputInitially

State

OutputInitially

HighAfter Reset (Q)

6/11

Plastic DIP14 MECHANICAL DATA

HCC/HCF4541B

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

a1 0.51 0.020

B 1.39 1.65 0.055 0.065

b 0.5 0.020

b1 0.25 0.010

D 20 0.787
E 8.5 0.335

e 2.54 0.100

e3 15.24 0.600

F 7.1 0.280

I 5.1 0.201

L 3.3 0.130

Z 1.27 2.54 0.050 0.100

mm inch

P001A

7/11

HCC/HCF4541B

Ceramic DIP14/1 MECHANICAL DATA

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 20 0.787
B 7.0 0.276
D 3.3 0.130
E 0.38 0.015

e3 15.24 0.600

F 2.29 2.79 0.090 0.110
G 0.4 0.55 0.016 0.022
H 1.17 1.52 0.046 0.060

L 0.22 0.31 0.009 0.012
M 1.52 2.54 0.060 0.100
N 10.3 0.406

P 7.8 8.05 0.307 0.317

Q 5.08 0.200

mm inch

8/11

P053C

SO14 MECHANICAL DATA

HCC/HCF4541B

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 1.75 0.068
a1 0.1 0.2 0.003 0.007
a2 1.65 0.064

b 0.35 0.46 0.013 0.018

b1 0.19 0.25 0.007 0.010

C 0.5 0.019

c1 45° (typ.)

D 8.55 8.75 0.336 0.344

E 5.8 6.2 0.228 0.244

e 1.27 0.050

e3 7.62 0.300

F 3.8 4.0 0.149 0.157

G 4.6 5.3 0.181 0.208

L 0.5 1.27 0.019 0.050

M 0.68 0.026

S8°(max.)

mm inch

P013G

9/11

HCC/HCF4541B

PLCC20 MECHANICAL DATA

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 9.78 10.03 0.385 0.395

B 8.89 9.04 0.350 0.356

D 4.2 4.57 0.165 0.180
d1 2.54 0.100
d2 0.56 0.022

E 7.37 8.38 0.290 0.330

e 1.27 0.050

e3 5.08 0.200

F 0.38 0.015
G 0.101 0.004
M 1.27 0.050

M1 1.14 0.045

mm inch

10/11

P027A

HCC/HCF4541B

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such informationnor for any infringement of patents or other rights of third parties which may results from its use. No
licenseis grantedby implication or otherwise under any patentor patent rights of SGS-THOMSONMicroelectronics. Specifications mentioned
in this publication aresubject to changewithout notice. Thispublication supersedes and replacesall informationpreviouslysupplied.
SGS-THOMSONMicroelectronics products are not authorized for use ascriticalcomponents in lifesupport devices or systemswithout express
writtenapproval ofSGS-THOMSON Microelectonics.

 1996 SGS-THOMSON Microelectronics - Printedin Italy- AllRights Reserved

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11/11