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LC72131KMA View Datasheet(PDF) - SANYO -> Panasonic

Part Name
Description
View to exact match
LC72131KMA
SANYO
SANYO -> Panasonic SANYO
LC72131KMA Datasheet PDF : 22 Pages
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LC72131K, LC72131KMA
Pin Functions
Symbol
XIN
XOUT
Pin No.
LC72131K LC72131KMA
1
1
22
20
Type
X'tal OSC
Functions
Crystal resonator connection
(4.5MHz/7.2MHz)
Circuit configuration
FMIN
16
AMIN
15
CE
3
DI
4
CL
5
DO
6
VDD
17
VSS
21
BO1
7
BO2
8
BO3
9
BO4
10
IO1
11
IO2
13
14
Local
FMIN is selected when the serial data input DVS bit is set to 1.
oscillator
The input frequency range is from 10 to 160MHz.
signal input
The input signal passes through the internal divide-by-two
prescaler and is input to the swallow counter.
The divisor can be in the range 272 to 65535. However,
since the signal has passed through the divide-by-two
prescaler, the actual divisor is twice the set value.
13
Local
AMIN is selected when the serial data input DVS bit is set to 0.
oscillator
When the serial data input SNS bit is set to 1:
signal input
The input frequency range is 2 to 40MHz.
The signal is directly input to the swallow counter.
The divisor can be in the range 272 to 65535, and the divisor
used will be the value set.
When the serial data input SNS bit is set to 0:
The input frequency range is 0.5 to 10MHz.
The signal is directly input to a 12-bit programmable divider.
The divisor can be in the range 4 to 4095, and the divisor
used will be the value set.
2
Chip enable
Set this pin high when inputting (DI) or outputting (DO) serial
S
data.
3
Input data
Inputs serial data transferred from the controller to the
S
LC72131K/KMA.
S
4
Clock
Used as the synchronization clock when inputting (DI) or
outputting (DO) serial data.
5
Output data
Outputs serial data transferred from the LC72131K/KMA to the
controller.
The content of the output data is determined by the serial data
DOC0 to DOC2.
15
Power supply
The LC72131K/KMA power supply pin (VDD=4.5 to 5.5V)
The power on reset circuit operates when power is first applied.
-
19
Ground
The LC72131K/KMA ground
-
6
Output port
Dedicated output pins
7
The output states are determined by BO1 to BO4 bits in
8
the serial data.
9
Data: 0=open, 1=low
A time base signal (8Hz) can be output from the BO1 pin.
(When the serial data TBC bit is set to 1.)
Care is required when using the BO1 pin, since it has a higher on
impedance that the other output ports (pins BO2 to BO4).
10
I/O port
I/O dual-use pins
12
The direction (input or output) is determined by bits IOC1 and
IOC2 in the serial data.
Data: 0=input port, 1=output port
When specified for use as input ports:
S
The state of the input pin is transmitted to the controller over
the DO pin.
Input state: low=0 data value
high=1 data value
When specified for use as output ports:
The output states are determined by the IO1 and IO2 bits in
the serial data.
Data: 0=open, 1=low
These pins function as input pins following a power on reset.
Continued on next page.
No.A0788-7/22
 

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