MC10H136

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2

Figure 1. Pin Assignment

Q2

Q3

D3

D2

S2

Q1

Q0

CLOCK

D0

D1

S1

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

Table 1. FUNCTION SELECT TABLE

CIN

Hold (Stop Count)

Table 2. SEQUENTIAL TRUTH TABLE*

INPUTS

OUTPUTS

Carry

In

Clock

* *

Q0

Carry

Out

L

LL

L

H

H

H

H

H

LL

L

X

L

L

L

L

L

L

H

H

H

H

H

H

H

H

H

H

H

L

L

L

L

L

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

L

H

H

H

L

H

H

H

L

L

H

H

H

H

H

H

H

H

H

L

L

L

L

L

L

L

X

X

H

H

HH

L

LH

H

HH

L

LL

L

LL

L

L

L

LL

L

HH H

H

H

H

H

H

H

* Truth table shows logic states assuming inputs vary in sequence shown from top to bottom.

** A clock H is defined as a clock input transition from a low to a high logic level.

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

HH

L

L

S1

S2

Operating Mode

X

X

D3

S1 S2 D0 D1 D2

Preset (Program)

Increment (Count Up)

Hold Count

Decrement (Count Down)

Hold Count

L

H

L

H

LH

H

L

L

H

L

H

H

H

L

L

Q1 Q2 Q3

Pin assignment is for Dual-in-Line Package.

Table 3. MAXIMUM RATINGS

Symbol

Characteristic

Rating

Unit

−8.0 to 0

Vdc

Vdc

Output Current

Continuous

Surge

50

100

mA

Operating Temperature Range

0 to +75

°C

Storage Temperature Range

Plastic

Ceramic

−55 to +150

−55 to +165

°C

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality

should not be assumed, damage may occur and reliability may be affected.

0°

25°

75°

Symbol

Characteristic

Min

Max

Min

Max

Min

Max

Unit

Power Supply Current

−

165

−

150

−

165

mA

Input Current High

Pins 5, 6, 11, 12, 13

Pin 9

Pin 7

Pin 10

−

−

−

−

430

670

535

380

−

−

−

−

275

420

335

240

−

−

−

−

275

420

335

240

mA

Input Current Low

0.5

−

0.5

−

0.3

−

mA

High Output Voltage

−1.02

−0.84

−0.98

−0.81

−0.92

−0.735

Vdc

Low Output Voltage

−1.95

−1.63

−1.95

−1.63

−1.95

−1.60

Vdc

High Input Voltage

−1.17

−0.84

−1.13

−0.81

−1.07

−0.735

Vdc

Low Input Voltage

−1.95

−1.48

−1.95

−1.48

−1.95

−1.45

Vdc

1. Each MECL 10H™ series circuit has been designed to meet the dc specifications shown in the test table, after thermal equilibrium has been

established. The circuit is in a test socket or mounted on a printed circuit board and transverse air flow greater than 500 lfpm is maintained.

Outputs are terminated through a 50 W resistor to −2.0 V.