IC 8BIT SRL TO PRL CONVTR SO16

NJU3712M#

Manufacturer Part NumberNJU3712M#
DescriptionIC 8BIT SRL TO PRL CONVTR SO16
ManufacturerNJR
NJU3712M# datasheet
 


Specifications of NJU3712M#

FunctionSerial to ParallelInput TypeSerial
Output TypeParallelNumber Of Inputs4
Number Of Outputs8Voltage - Supply4.5 V ~ 5.5 V
Operating Temperature-25°C ~ 85°CMounting TypeSurface Mount
Package / CaseSO-16Lead Free Status / RoHS StatusLead free / RoHS Compliant
Data Rate-Other namesNJU#3712M
NJU#3712M
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8-BIT SERIAL TO PARALLEL CONVERTER
GENERAL DESCRIPTION
The NJU3712 is an 8-bit serial to parallel converter
especially applying to MPU outport expander.
The effective outport assignment of MPU is available
as the connection between NJU3712 and MPU is
required 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.
Furthermore, the NJU3712 outputs the serial data
from SO terminal through the shift register. Therefore, it
connects with other SIPO ICs like as NJU3711 in
cascade for expanding the parallel conversion outputs.
The hysteresis input circuit realizes wide noise
margin and the high drive-ability output buffer (25mA)
can drive LED directly.
FEATURES
8-Bit Serial In Parallel Out
Hysteresis Input
0.5V typ
Operating Voltage
5V±10%
Maximum Operating Frequency 5MHz and more
Output Current
25mA
C-MOS Technology
Package Outline
DIP16/DMP16/SSOP16
BLOCK DIAGRAM
DATA
CLK
STB
CLR
Ver.2003-11-18
PACKAGE OUTLINE
PIN CONFIGURATION
P3
P4
P5
V
SS
P6
P7
P8
SO
Controller Circuit
NJU3712
NJU3712M
NJU3712D
NJU3712V
V
16
1
DD
15
P2
2
P1
3
14
4
13
V
SS
CLR
5
12
6
11
STB
CLK
7
10
DATA
9
8
NJU3712D/M/V
P1
P2
P3
P7
P8
SO
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NJU3712M# Summary of contents

  • Page 1

    SERIAL TO PARALLEL CONVERTER GENERAL DESCRIPTION The NJU3712 is an 8-bit serial to parallel converter especially applying to MPU outport expander. The effective outport assignment of MPU is available as the connection between NJU3712 and MPU is required only ...

  • Page 2

    NJU3712 TERMINAL DESCRIPTION No. SYMBOL DATA 10 CLK 11 STB CLR ...

  • Page 3

    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 ...

  • Page 4

    NJU3712 TIMING CHART CLK CLR STB DATA Ver.2003-11-18 ...

  • Page 5

    ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Range Input Voltage Range Output Voltage Range Output Current Output Short Current (SO Terminal) (Note 5) Output Short Current (P1~P8 Terminals) (Note 5) Power Dissipation Operating Temperature Range Storage Temperature Range Note 2) All ...

  • Page 6

    NJU3712 SWITCHING CHARACTERISTICS PARAMETER Set-Up Time Hold Time Set-Up Time Hold Time Output Delay Time Maximum Operating Frequency Note 7) C =50pF OUT - =4.5~5.5V SYMBOL CONDITION t DATA-CLK SD t CLK-DATA HD STB-CLK t ...

  • Page 7

    SWITCHING CHARACTERISTICS TEST WAVEFORM CLK DATA STB CLK SO CLK STB P1~P8 CLK STB P1~P8 CLR DATA P1~P8 Ver.2003-11-18 f MAX HSTB t pd PSTB t pd PCLR NJU3712 NJU3555 NJU3555 t SSTB t pd ...

  • Page 8

    NJU3712 APPLICATION CIRCUIT (1) MPU APPLICATION CIRCUIT (2) (Combined with NJU3711) MPU - DATA CLK NJU3712 STB CLR DATA CLK NJU3712 STB CLR SO P1 ...