LC72146V View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
LC72146V Datasheet PDF : 22 Pages
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Pin Functions
Number
Symbol
24
XIN
1
XOUT
LC72146, 72146M, 72146V
Type
Function
Xtal OSC
Connection for crystal oscillator element (7.2 or 4.5 MHz)
Equivalent circuit
• Serial data input: FMIN is selected when DVS is set to 1.
17
FMIN
Local oscillator Input frequency range: 10 to 160 MHz
signal input • The signal is transmitted directly to the swallow counter
• Divisor value range: 272 to 65535
• Serial data input: AMIN is selected when DVS is set to 0.
• Serial data input: when SNS is set to 1.
• Input frequency range: 2 to 40 MHz
• The signal is transmitted directly to the swallow counter.
16
AMIN
Local oscillator • Divisor value range: 272 to 65535
signal input • Serial data input: when SNS is set to 0.
• Input frequency range: 0.5 to 10 MHz
• The signal is transmitted directly to the 12-bit
programmable divider.
• Divisor value range: 4 to 4095
• This pin must be set high to input serial data to the
2
CE
Chip enable
LC72146 DI pin or to output serial data from the DO pin.
S
• Inputs the clock used for data synchronization when
4
CL
Clock
inputting serial data to the LC72146 DI pin or outputting
S
serial data from the DO pin.
3
DI
Input data
• Input pin for serial data transmitted to the LC72146 from
S
a controller.
• Output pin for serial data transmitted from the LC72146 to
5
DO
Output data
a controller.
• The LC72146 power supply connection. A voltage
between 4.5 and 5.5 volts must be supplied when the
15
VDD
Power supply
PLL circuit is used.
• The power on reset circuit operates when power is first
applied.
18
23
VDD
Ground
• The LC72146 ground connection.
12
• General-purpose I/O ports
11
10
I/O-1
I/O-2
I/O-3
• Output mode circuit type: open drain
General-purpose • Function after a power on reset: input port
I/O port
• Can be set up to function as output ports by bits I/O-1 to
I/O-3 in the serial data sent from the controller.
Continued on next page.
No. 4922-6/22
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