PCA9564BS Ver la hoja de datos (PDF) - NXP Semiconductors.
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PCA9564BS Datasheet PDF : 32 Pages
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Philips Semiconductors
Parallel bus to I2C-bus controller
Product data sheet
PCA9564
PCA9564
SDA
FILTER
SDA CONTROL
DATA
D7
D6
D5
D4
D3
D2
D1
D0
BUS BUFFER
SD7 SD6 SD5 SD4 SD3 SD2 SD1 SD0
I2CDAT – DATA REGISTER – READ/WRITE
A1
A0
0
1
AA ENSIO STA STO SI
TE TO6 TO5 TO4 TO3 TO2 TO1 TO0
I2CTO – TIMEOUT REGISTER – WRITE ONLY
0
0
SCL
FILTER
SCL CONTROL
BIT7
BIT6 BIT5 BIT4 BIT3 BIT2 BIT1
I2CADR – OWN ADDRESS – READ/WRITE
BIT0
1
0
ENSIO STA STO SI
ST7 ST6 ST5 ST4 ST3 ST2 ST1 ST0
I2CSTA – STATUS REGISTER – READ ONLY
AA ENSIO STA STO
SI
CR2 CR1 CR0
I2CCON – CONTROL REGISTER – READ/WRITE
0
0
1
1
CLOCK SELECTOR
OSCILLATOR
CR0
CR1
CR2
INTERRUPT CONTROL
CONTROL BLOCK
POWER–ON
RESET
CE
WR
RD
INT
RESET
A1
A0
CONTROL SIGNALS
Figure 1. Block diagram
VDD
SW02262
2006 Sep 01
4
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