r8a66155 Renesas Electronics Corporation., r8a66155 Datasheet

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r8a66155

Manufacturer Part Number
r8a66155
Description
16-bit I/o Expander With Led Drive Function
Manufacturer
Renesas Electronics Corporation.
Datasheet
R8A66155SP
16-bit I/O EXPANDER WITH LED DRIVE FUNCTION
DESCRIPTION
R8A66155 is a semiconductor integrated circuit which has 16-bit shift register function to execute serial in -
parallel out conversion and parallel in - serial out conversion.
Built in two shift registers for serial in - parallel out and parallel in - serial out are constructed independently,
This IC is able to read serial input data into a shift register while output the serial data converting from the
parallel data input.
Also, parallel data I/O pins can be set to input mode or output mode by a bit.
R8A66155 is useful in a wide range of applications, such as MCU (micro controller unit) I/O port extension
and serial bus system data communication.
Moreover, R8A66155 can be used as the anode common LED drive, too.
FEATURES
APPLICATION
PIN CONFIGURATION (TOP VIEW)
REJ03F0286-0100 Rev.1.00 Dec.08.2009
Page 1 of 7
Bi-directional serial communication with MCU
Serial data can be input during parallel to serial data conversion
Parallel data I/O pins can be set input mode or output mode by a bit
Schmitt input (DI, CLK, /S, /CS)
N-ch open drain output (DO, D1~D16).
High output current I
Parallel data I/O pins (D1~D16)
Wide supply voltage range (Vcc=2.0 to 6.0V)
Wide operating temperature range (Ta=-40 to 85℃)
Serial - parallel or parallel - serial data conversion for MCU peripheral.
Serial bus control by MCU.
LED array drive, The various LED display modules.
PARALLEL DATA I/O
SERIAL DATA OUTPUT DO
SERIAL DATA INPUT
CHIP SELECT INPUT CS
CLOCK INPUT CLK
OL
SET INPUT
=24mA (at V
GND
GND
D16
D15
D14
D13
Vcc
DI
S
CC
=4.5V), I
10
11
12
1
2
3
4
5
6
7
8
9
OL
=15mA (at V
24
23
22
21
20
19
18
17
16
15
14
13
CC
=3.0V)
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
PARALLEL DATA I/O
REJ03F0286-0100
Dec.08.2009
Rev. 1.00

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r8a66155 Summary of contents

Page 1

... Also, parallel data I/O pins can be set to input mode or output mode by a bit. R8A66155 is useful in a wide range of applications, such as MCU (micro controller unit) I/O port extension and serial bus system data communication. Moreover, R8A66155 can be used as the anode common LED drive, too. ...

Page 2

... Built in two shift registers for serial in-parallel out (Shift register 2) and parallel in-serial out (Shift register 1) are constructed independently, R8A66155 is able to read serial input data into a shift register while output the serial data converting from the parallel data input. ...

Page 3

... R8A66155SP DESCRIPTION OF OPERATION (1) When power ON, the status of DO and D1~D16 terminals are not determined. These terminals are turn to high-impedance when "L" is input to the /S terminal. (2) By the negative edge of /CS, the status of D1~D16 terminals is loaded on shift register 1. (3) Synchronous to the negative edge of CLK, 16-bit loaded data is serial output from the DO terminal. ...

Page 4

... V Output voltage O I Output current per output pin O I Supply / GND current CC Pd Power dissipation Tstg Storage temperature range Note: R8A66155SP: Ta=-40~+75 RECOMMENDED OPERATING CONDITIONS Symbol Parameter Vcc Supply voltage VI Input voltage VO Output voltage Topr Operating temperature range ELECTRICAL CHARACTERISTICS Symbol ...

Page 5

... R8A66155SP SWITCHING CHARACTERISTICS Symbol Parameter fmax Maximum repeat frequency tPLZ Output "L-Z" and "Z-L" propagation time CLK - DO tPZL tPLZ Output "L-Z" and "Z-L" propagation time /CS - D1~D16 tPZL Output "L-Z" propagation time tPLZ / D1~D16 TIMING REQUIREMENTS ...

Page 6

... R8A66155SP TIMING DIAGRAM tw CLK 50% tPLZ DO 10 50% tPLZ D1~D16 10 50% tPLZ DO, D1~D16 10% DI 50% tsu CLK D1~D16 50% tsu CS REJ03F0286-0100 Rev.1.00 Dec.08.2009 Page 50% 50% tPZL CLK 50 50% 50% tPZL CS 50% 50% 50% th 50% 50% th 50% 50% 50% tsu th 50% 50% 50% trec ...

Page 7

... R8A66155SP PACKAGE OUTLINE Package 24pin SOP All trademarks and registered trademarks are the property of their respective owners. REJ03F0286-0100 Rev.1.00 Dec.08.2009 Page RENESAS Code Previous Code PRSP0024DF-A 24P2X-B ...

Page 8

Notes: 1. This document is provided for reference purposes only so that Renesas customers may select the appropriate Renesas products for their use. Renesas neither makes warranties or representations with respect to the accuracy or completeness of the information contained ...

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