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부품번호 | 9531 기능 |
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기능 | 8-bit I2C LED dimmer | ||
제조업체 | NXP Semiconductors | ||
로고 | |||
전체 20 페이지수
INTEGRATED CIRCUITS
PCA9531
8-bit I2C LED dimmer
Product data
Philips
Semiconductors
2003 Nov 10
Philips Semiconductors
8-bit I2C LED dimmer
Product data
PCA9531
BLOCK DIAGRAM
PCA9531
SCL
SDA
INPUT
FILTERS
A2 A1 A0
I2C-BUS
CONTROL
INPUT
REGISTER
LED SELECT (LSx)
REGISTER
VDD
RESET
VSS
POWER-ON
RESET
OSCILLATOR
PRESCALER 0
REGISTER
PRESCALER 1
REGISTER
0
1
PWM0
REGISTER
PWM1
REGISTER
BLINK0
BLINK1
NOTE: ONLY ONE I/O SHOWN FOR CLARITY
Figure 3. Block diagram
LEDx
SW02040
2003 Nov 10
4
4페이지 Philips Semiconductors
8-bit I2C LED dimmer
Product data
PCA9531
Acknowledge
The number of data bytes transferred between the start and the stop conditions from transmitter to receiver is not limited. Each byte of eight bits
is followed by one acknowledge bit. The acknowledge bit is a HIGH level put on the bus by the transmitter whereas the master generates an
extra acknowledge related clock pulse.
A slave receiver which is addressed must generate an acknowledge after the reception of each byte. Also a master must generate an
acknowledge after the reception of each byte that has been clocked out of the slave transmitter. The device that acknowledges has to pull down
the SDA line during the acknowledge clock pulse, so that the SDA line is stable LOW during the HIGH period of the acknowledge related clock
pulse, set-up and hold times must be taken into account.
A master receiver must signal an end of data to the transmitter by not generating an acknowledge on the last byte that has been clocked out of
the slave. In this event, the transmitter must leave the data line HIGH to enable the master to generate a stop condition.
DATA OUTPUT
BY TRANSMITTER
DATA OUTPUT
BY RECEIVER
SCL FROM
MASTER
S
not acknowledge
acknowledge
12
8
START condition
Figure 9. Acknowledgement on the I2C-bus
9
clock pulse for
acknowledgement
SW00368
2003 Nov 10
7
7페이지 | |||
구 성 | 총 20 페이지수 | ||
다운로드 | [ 9531.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
9531 | 8-bit I2C LED dimmer | NXP Semiconductors |
9534 | 8-bit I2C and SMBus/ low power I/O port with interrupt | NXP Semiconductors |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |