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NJU3715A PDF даташит

Спецификация NJU3715A изготовлена ​​​​«JRC» и имеет функцию, называемую «16-Output / DMP24».

Детали детали

Номер произв NJU3715A
Описание 16-Output / DMP24
Производители JRC
логотип JRC логотип 

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NJU3715A Даташит, Описание, Даташиты
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NJU3715A
16-BIT SERIAL TO PARALLEL CONVERTER
GENERAL DESCRIPTION
The NJU3715A is a 16-bit serial to parallel converter
especially applying to MPU outport expander. It can
operate from 2.4V to 5.5V.
The effective outport assignment of MPU is available
as the connection between NJU3715A and MPU using
only 4 lines.
The serial data synchronizing with 5MHz or more
clock can be input to the serial data input terminal and
the data are output from parallel output buffer through
serial in parallel out shift register and parallel data
latches.
The hysteresis input circuit realizes wide noise
margin and the high drive-ability output buffer (25mA)
can drive LED directly.
PACKAGE OUTLINE
NJU3715AM
FEATURES
16-Bit Serial In Parallel Out
Hysteresis Input
0.5V typ at 5V
Operating Voltage
2.4 to 5.5V
Maximum Operating Frequency 5MHz and more
Output Current
25mA at 5V, 5mA at 3V
C-MOS Technology
Package Outline
DMP24
BLOCK DIAGRAM
DATA
CLK
PIN CONFIGURATION
P7 1
P8 2
P9 3
P10 4
P11 5
VSS 6
NC 7
P12 8
P13 9
P14 10
P15 11
P16 12
24 VDD
23 P6
22 P5
21 P4
20 P3
19 P2
18 NC
17 P1
16 CLR
15 STB
14 CLK
13 DATA
NJU3715AM
P1
P2
P3
STB
CLR
Controller Circuit
P15
P16
Ver.2003-11-18
-1-









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NJU3715A Даташит, Описание, Даташиты
NJU3715A
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TERMINAL DESCRIPTION
No. SYMBOL I/O
1 P7 O
2 P8 O
3 P9 O
4 P10 O
5 P11 O
6 VSS -
7 NC -
8 P12 O
9 P13 O
10 P14 O
11 P15 O
12 P16 O
13 DATA
I
14 CLK
I
15 STB
I
16 CLR
I
17 P1 O
18 NC
-
19 P2 O
20 P3 O
21 P4 O
22 P5 O
23 P6 O
24 VDD
-
FUNCTION
Parallel Conversion Data Output Terminals
GND
Non Connection
Parallel Conversion Data Output Terminals
Serial Data Input Terminal
Clock Signal Input Terminal
Strobe Signal Input Terminal
Clear Signal Input Terminal
Parallel Conversion Data Output Terminal
Non Connection
Parallel Conversion Data Output Terminals
Power Supply Terminal (2.4 to 5.5V)
-2-
Ver.2003-11-18









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NJU3715A Даташит, Описание, Даташиты
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NJNUJ3U731555A5
FUNCTIONAL DESCRIPTION
(1) Reset
When the "L" level is input to the CLR terminal, all latches are reset and all of parallel conversion
output are "L" level.
Normally, the CLR terminal should be "H" level.
(2) Data Transmission
In the STB terminal is "H" level and the clock signals are inputted to the CLK terminal, the serial data
into the DATA terminal are shifted in the shift register synchronizing at a rising edge of the clock signal.
When the STB terminal is changed to "L" level, the data in the shift register are transferred to the
latches.
Even if the STB terminal is "L" level, the input clock signal shifts the data in the shift register, therefore,
the clock signal should be controlled for data order.
Furthermore, the 4 input circuits provide a hysteresis characteristics using the schmitt trigger structure
to protect the noise.
CLK STB CLR
XXL
HH
L
H
LH
Note 1) X: Don’t care
OPERATION
All of latches are reset (the data in the shift register is no change).
All of parallel conversion outputs are "L".
The serial data into the DATA terminal are inputted to the shift register.
In this stage, the data in the latch is not changed.
The data in the shift register is transferred to the latch. And the data in the
latch is output from the parallel conversion output terminals.
When the clock signal is inputted into the CLK terminal in state of the
STB="L" and CLR="H", the data is shifted in the shift register and latched
data is also changed in accordance with the shift register.
Ver.2003-11-18
-3-










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Номер в каталогеОписаниеПроизводители
NJU371516-BIT SERIAL TO PARALLEL CONVERTERNew Japan Radio
New Japan Radio
NJU3715A16-Output / DMP24JRC
JRC

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