ON Semiconductor MC14553B Technical data

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MC14553B

3-Digit BCD Counter

The MC14553B 3–digit BCD counter consists of 3 negative edge triggered BCD counters that are cascaded synchronously. A quad latch at the output of each counter permits storage of any given count. The information is then time division multiplexed, providing one BCD number or digit at a time. Digit select outputs provide display control. All outputs are TTL compatible.

An on–chip oscillator provides the low–frequency scanning clock which drives the multiplexer output selector.

This device is used in instrumentation counters, clock displays, digital panel meters, and as a building block for general logic applications.

• TTL Compatible Outputs

• On–Chip Oscillator

• Cascadable

• Clock Disable Input

• Pulse Shaping Permits Very Slow Rise Times on Input Clock

• Output Latches

• Master Reset

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PDIP–16

P SUFFIX

CASE 648

SOIC–16 DW SUFFIX CASE 751G

MARKING

DIAGRAMS

MC14553BCP

AWLYYWW

14553B

AWLYYWW

MAXIMUM RATINGS (Voltages Referenced to V

Symbol Parameter Value Unit

Vin, V

out

stg

1. Maximum Ratings are those values beyond which damage to the device may occur.

2. Temperature Derating: Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C

This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high–impedance circuit. For proper operation, V to the range V

Unused inputs must always be tied to an appropriate logic voltage level (e.g., either V

DC Supply Voltage Range –0.5 to +18.0 V Input or Output Voltage Range

out

(DC or Transient)

Input Current

(DC or Transient) per Pin

Output Current

(DC or Transient) per Pin

Power Dissipation,

per Package (Note 2.) Ambient Temperature Range –55 to +125 °C Storage Temperature Range –65 to +150 °C Lead Temperature

(8–Second Soldering)

v (Vin or V

or VDD). Unused outputs must be left open.

) v VDD.

out

) (Note 1.)

–0.5 to VDD + 0.5 V

±10 mA

+20 mA

500 mW

260 °C

and V

should be constrained

out

A = Assembly Location WL or L = Wafer Lot YY or Y = Year WW or W = Work Week

ORDERING INFORMATION

Device Package Shipping

MC14553BCP PDIP–16 25/Rail MC14553BDW SOIC–16 47/Rail

 Semiconductor Components Industries, LLC, 2000

March, 2000 – Rev . 3

1 Publication Order Number:

MC14553B/D

MC14553B

BLOCK DIAGRAM

CIA CIB

CLOCK

DIS

= PIN 16

Q0 Q1

Q2 Q3

O.F. DS DS DS

= PIN 8

9 7 6 5 14

2 1

2 3

TRUTH TABLE

Inputs

Master

Reset

0 0 0 No Change 0 0 0 Advance 0 X 1 X No Change 0 1 0 Advance 0 1 0 No Change 0 0 X X No Change 0 X X Latched 0 X X 1 Latched 1 X X 0 Q0 = Q1 = Q2 = Q3 = 0

X = Don’t Care

Clock Disable LE

Outputs

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MC14553B

ELECTRICAL CHARACTERISTICS (Voltages Referenced to V

Characteristic Symbol

Output Voltage “0” Level

= VDD or 0

“1” Level

= 0 or V

Input Voltage “0” Level

= 4.5 or 0.5 Vdc)

= 9.0 or 1.0 Vdc)

= 13.5 or 1.5 Vdc)

“1” Level

= 0.5 or 4.5 Vdc)

= 1.0 or 9.0 Vdc)

= 1.5 or 13.5 Vdc)

Output Drive Current

= 4.6 Vdc) Source —

= 9.5 Vdc) Pin 3

= 13.5 Vdc)

(VOH = 4.6 Vdc) Source — (V

= 9.5 Vdc) Other

= 13.5 Vdc) Outputs

(VOL = 0.4 Vdc) Sink — (V

= 0.5 Vdc) Pin 3

= 1.5 Vdc)

(VOL = 0.4 Vdc) Sink — Other (V

= 0.5 Vdc) Outputs

= 1.5 Vdc)

Input Current I Input Capacitance

= 0)

Quiescent Current

(Per Package)

MR = V

Total Supply Current

(4.) (5.)

(Dynamic plus Quiescent, Per Package)

= 50 pF on all outputs, all

Vdc

5.0 10 15

Min Max Min Typ

— — —

4.95

9.95

14.95

— — —

3.5

7.0 11

– 0.25 – 0.62

– 1.8

– 0.64

– 1.6 – 4.2

0.5

1.1

1.8

3.0

6.0 18

15 — ±0.1 — ±0.00001 ±0.1 — ±1.0 µAdc

— — — — 5.0 7.5 — — pF

5.0 10 15

— — —

5.0 10 15

)

– 55_C 25_C 125_C

(3.)

Max Min Max

0.05

0.05 —

— —

1.5

3.0

4.0

— — —

5.0 10 20

— — —

4.95

9.95

14.95

— — —

3.5

7.0 11

– 0.2 – 0.5 – 1.5

– 0.51

– 1.3 – 3.4

0.4

0.9

1.5

2.5

5.0 15

— — —

0 0 0

5.0 10 15

2.25

4.50

6.75

2.75

5.50

8.25

– 0.36

– 0.9 – 3.5

– 0.88 – 2.25

– 8.8

0.88

2.25

8.8

4.0

8.0 20

0.010

0.020

0.030

IT = (0.35 µA/kHz) f + I IT = (0.85 µA/kHz) f + I IT = (1.50 µA/kHz) f + I

0.05

0.05 —

— —

1.5

3.0

4.0

— — —

5.0 10 20

DD DD DD

— — —

4.95

9.95

14.95

— — —

3.5

7.0 11

0.14

0.35

1.1

– 0.36

– 0.9 – 2.4

0.28

0.65

1.20

1.6

3.5 10

— — —

0.05

buffers switching)

3. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.

4. The formulas given are for the typical characteristics only at 25_C.

5. To calculate total supply current at loads other than 50 pF: I

) = IT(50 pF) + (CL – 50) Vfk

T(CL

where: I

is in µA (per package), CL in pF, V = (VDD – VSS) in volts, f in kHz is input frequency, and k = 0.004.

— — —

1.5

3.0

4.0

— — —

150 300 600

Unit

Vdc

mAdc

µAdc

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MC14553B

SWITCHING CHARACTERISTICS

Characteristic

Output Rise and Fall Time

, t

TLH

Clock to BCD Out 2a t

Clock to Overflow 2a t

Reset to BCD Out 2b t

Clock to Latch Enable Setup Time Master Reset to Latch Enable Setup Time

Removal Time

Latch Enable to Clock

Clock Pulse Width 2a t

Reset Pulse Width 2b t

Reset Removal Time — t

Input Clock Frequency 2a f

Input Clock Rise Time 2b t

= (1.5 ns/pF) CL + 25 ns

THL

, t

= (0.75 ns/pF) CL + 12.5 ns

THL

, t

= (0.55 ns/pF) CL + 9.5 ns

THL

(6.)

= 50 pF, TA = 25_C)

Figure Symbol V

2a t

2b t

TLH

THL

PLH

PHL

rem

WH(cl)

WH(R)

rem

TLH

Min Typ

(7.)

Max Unit

5.0 10 15

5.0 10

— — —

600 400 200

– 80 – 10

550 200 150

1200

600 450

– 80

20 —

— —

100

50 40

900 500 200

600 400 200

900 500 300

300 200 100

– 200

– 70 – 50

275 100

600 300 225

– 180

– 50 – 30

1.5

5.0

7.0 No

Limit

200 100

1800 1000

400

1200

800 400

1800 1000

600

— — —

0.9

2.5

3.5

Disable, MR, Latch Enable

Rise and Fall Times

Scan Oscillator Frequency

(C1 measured in µF)

— t

1 f

TLH

THL

osc

5.0 10 15

— — —

1.5/C1

4.2/C1

7.0/C1

5.0

4.0 —

— —

6. The formulas given are for the typical characteristics only at 25_C.

7. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.

MHz

µs

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