MC10H136

MOTOROLA

MECL Data

DL122 — Rev 6

2–2

Q2

T

T

T

T

T

T

T

Q3

T

Q3

Q1

Q1

T

T

C

T

C

T

C

Q0

LOGIC DIAGRAM

NOTE: FLIP-FLOPS WILL TOGGLE WHEN ALL T INPUTS ARE LOW.

S1 9

S2 7

Carry In

10

Clock

13

12

D0

14

Q0

11

D1

15

Q1

6

D2

2

Q2

5

D3

3

Q3

4

Carry Out

T

C

Q0

T

Q2

VCC1 = Pin 1

VCC2 = Pin 16

VEE = Pin 8

APPLICATION INFORMATION

The MC10H136 is a high speed synchronous counter

that operates at 250 MHz. Counter operating modes

include count up, count down, pre-set and hold count.

This device allows the designer to use one basic counter

for many applications.

The S1, S2, control lines determine the operating

modes of the counter. In the pre-set mode, a clock pulse

is necessary to load the counter with the information

present on the data inputs (D0, D1, D2, and D3). Carry out

goes low on the terminal count or when the counter is

being pre-set.