|
|
|
부품번호 | PCA9501D 기능 |
|
|
기능 | 8-bit I2C and SMBus I/O port with interrupt/ 2-kbit EEPROM and 6 address pins | ||
제조업체 | NXP Semiconductors | ||
로고 | |||
전체 22 페이지수
INTEGRATED CIRCUITS
PCA9501
8-bit I2C and SMBus I/O port with interrupt,
2-kbit EEPROM and 6 address pins
Product data
Supersedes data of 2002 Sep 27
2003 Sep 12
Philips
Semiconductors
Philips Semiconductors
8-bit I2C and SMBus I/O port with interrupt,
2-kbit EEPROM and 6 address pins
Product data
PCA9501
BLOCK DIAGRAM
PCA9501
A0
A1
A2
A3
A4
A5
SCL
SDA
INPUT
FILTER
300 k Ω
I2C/SMBus
CONTROL
8-BIT
WRITE pulse
INPUT/
OUTPUT
PORTS
READ pulse
VDD
VSS
WC
POWER-ON
RESET
EEPROM
256 x 8
LP
FILTER
Figure 3. Block diagram
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
VCC
INT
SW01077
2003 Sep 12
4
4페이지 Philips Semiconductors
8-bit I2C and SMBus I/O port with interrupt,
2-kbit EEPROM and 6 address pins
Product data
PCA9501
Quasi-bidirectional I/Os (see Figure 8)
A quasi-bidirectional I/O can be used as an input or output without the use of a control signal for data direction. At power-on the I/Os are HIGH.
In this mode, only a current source to VDD is active. An additional strong pull-up to VDD allows fast rising edges into heavily loaded outputs.
These devices turn on when an output is written HIGH, and are switched off by the negative edge of SCL. The I/Os should be HIGH before
being used as inputs.
SLAVE ADDRESS (I/O EXPANDER)
DATA TO PORT
SDA S 0 A5 A4 A3 A2 A1 A0 0 A
START CONDITION
R/W ACKNOWLEDGE
FROM SLAVE
1
I/O3
SCL
12 345 678
DATA TO PORT
A0
ACKNOWLEDGE
FROM SLAVE
I/O3
AP
I/O3
OUTPUT
VOLTAGE
I/O3
PULL-UP
OUTPUT
CURRENT
IOHt
IOH
Figure 8. Transient pull-up current IOHt while I/O3 changes from LOW-to-HIGH and back to LOW
SW00904
2003 Sep 12
7
7페이지 | |||
구 성 | 총 22 페이지수 | ||
다운로드 | [ PCA9501D.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 |
PCA9501 | 8-bit I2C and SMBus I/O port with interrupt/ 2-kbit EEPROM and 6 address pins | NXP Semiconductors |
PCA9501BS | 8-bit I2C and SMBus I/O port with interrupt/ 2-kbit EEPROM and 6 address pins | NXP Semiconductors |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |