MB509 Datasheet, PDF (2/9 Pages) Fujitsu Component Limited. – TWO MODULUS PRESCALER WITH STAND-BY MODE

MB509
PS
DQ
DQ
DQ
C
C
CM
Input Buffer
IN
IN
SW
DQ
CQ
DQ
CQ
DQ
CQ
DQ
CQ
DQ
SW
CQ
Output
Buffer
OUT
MC
PS SW MC Divide Ratio
H
H
H
1/64
H
H
L
1/65
H
L
H
1/128
H
L
L
1/129
L
— — Stand-by mode
Note:
SW: H =V_CC, L = open
MC: H = 3.0V to V_CC,
L = GND to 0.8V
PS: H = 2.0V to V_CC,
L = GND to 0.4V
Figure 1. MB509 Block Diagram
PIN DESCRIPTION
Pin Number
Symbol
1
IN
2
V_CC
3
SW
4
OUT
5
GND
6
MC
7
PS
8
IN
Descriptions
Input
Power Supply, +5V
Divide Ratio Control Input (See Divide Ratio Table)
Output
Ground
Modulus Control Input (See Divide Ratio Table)
Stand–by Control Input (See Divide Ratio Table)
Complementary Input
2