r8a66152sp Renesas Electronics Corporation., r8a66152sp Datasheet

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r8a66152sp

Manufacturer Part Number
r8a66152sp
Description
12-bit I/o Expander With Led Drive Function
Manufacturer
Renesas Electronics Corporation.
Datasheet
R8A66152SP
12-BIT I/O EXPANDER WITH LED DRIVE FUNCTION
DESCRIPTION
R8A66152 is a semiconductor integrated circuit which has 12-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.
R8A66152 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, R8A66152 can be used as the anode common LED drive, too.
FEATURES
APPLICATION
PIN CONFIGURATION (TOP VIEW)
REJ03F0259-0100 Rev.1.00 Jan.9.2008
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~D12).
High output current I
Parallel data I/O pins (D1~D12)
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.
SERIAL DATA OUTPUT DO
PARALLEL DATA
Package : 20pin plastic SOP (Lead pitch : 1.27mm)
SERIAL DATA INPUT
CHIP SELECT INPUT
CLOCK INPUT CLK
OL
SET INPUT
=24mA (at V
I/O
GND
GND
Vcc
D12
D11
CS
DI
S
CC
=4.5V), I
10
1
2
3
4
5
6
7
8
9
OL
o
=15mA (at V
C)
CC
20
19
18
17
16
15
14
13
12
11
=3.0V)
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
PARALLEL DATA
I/O
REJ03F0259-0100
Jan.9.2008
Rev. 1.00

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r8a66152sp Summary of contents

Page 1

... R8A66152SP 12-BIT I/O EXPANDER WITH LED DRIVE FUNCTION DESCRIPTION R8A66152 is a semiconductor integrated circuit which has 12-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 ...

Page 2

... R8A66152SP BLOCK DIAGRAM Shift register CLK Parallel output latch Shift register FUNCTION The R8A66152 is produced by using the silicon gate CMOS technology and has low power dissipation and high noise margin ...

Page 3

... R8A66152SP DESCRIPTION OF OPERATION (1) When power ON, the status of DO and D1~D12 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~D12 terminals is loaded on shift register 1. (3) Synchronous to the negative edge of CLK, 12-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: R8A66152SP: Ta=-40 ∼ +70 RECOMMENDED OPERATING CONDITIONS Symbol Parameter Vcc Supply voltage VI Input voltage VO Output voltage Topr Operating temperature range ELECTRICAL CHARACTERISTICS Symbol ...

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... R8A66152SP 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~D12 tPZL Output "L-Z" propagation time tPLZ / D1~D12 TIMING REQUIREMENTS ...

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... R8A66152SP TIMING DIAGRAM tw CLK 50% t PLZ DO 10 50% t PLZ D1~D12 10 50% t PLZ DO, D1~D12 10% DI 50% tsu CLK D1~D12 50% tsu CS REJ03F0259-0100 Rev.1.00 Jan.9.2008 Page 50% 50% t PZL CLK 50% tw 50% 50% t PZL CS 50% 50% 50% th 50% 50% th 50% 50% tsu th 50% ...

Page 7

... R8A66152SP PACKAGE OUTLINE Package 20pin SOP All trademarks and registered trademarks are the property of their respective owners. REJ03F0259-0100 Rev.1.00 Jan.9.2008 Page RENESAS Code Previous Code PRSP0020DG-A 20P2X-C ...

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