MC145152-2 Parallel-Input (Interfaces with Dual-Modulus Prescalers)

MC145151-2 and MC145152-2 Technical Data, Rev. 5

Freescale Semiconductor

7

2

MC145152-2 Parallel-Input (Interfaces with

Dual-Modulus Prescalers)

The MC145152-2 is programmed by sixteen parallel inputs for the N and A counters and three input lines

for the R counter. The device features consist of a reference oscillator, selectable-reference divider,

two-output phase detector, 10-bit programmable divide-by-N counter, and 6-bit programmable

divide-by-A counter.

The MC145152-2 is an improved-performance drop-in replacement for the MC145152-1. Power

consumption has decreased and ESD and latch-up performance have improved.

2.1

Features

•

Operating Temperature Range: -40 to 85

°C

•

Low Power Consumption Through Use of CMOS Technology

•

3.0 to 9.0 V Supply Range

•

On- or Off-Chip Reference Oscillator Operation

•

Lock Detect Signal

•

Dual Modulus/Parallel Programming

•

8 User-Selectable

÷ R Values: 8, 64, 128, 256, 512, 1024, 1160, 2048

•

÷ N Range = 3 to 1023, ÷ A Range = 0 to 63

•

Chip Complexity: 8000 FETs or 2000 Equivalent Gates

Figure 5. MC145152-2 Pin Assignment

5

4

3

2

10

9

8

7

6

11

12

13

14

20

21

22

23

24

25

26

19

27

28

18

17

16

15

φ

R

RA0

N0

φ

V

RA1

N3

N2

N1

RA2

MC

A5

A3

A4

LD

N5

N6

N7

N4

N9

A2

A0

N8

A1

1

•