Electronic Components Datasheet Search |
|
PCA9625 Datasheet(PDF) 7 Page - NXP Semiconductors |
|
PCA9625 Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 33 page PCA9625_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 15 January 2008 7 of 33 NXP Semiconductors PCA9625 16-bit Fm+ I2C-bus 100 mA 24 V LED driver The last bit of the address byte defines the operation to be performed. When set to logic 1 a read is selected, while a logic 0 selects a write operation. 7.1.2 LED All Call I2C-bus address • Default power-up value (ALLCALLADR register): E0h or 1110 000 • Programmable through I2C-bus (volatile programming) • At power-up, LED All Call I2C-bus address is enabled. PCA9625 sends an ACK when E0h (R/W = 0) or E1h (R/W = 1) is sent by the master. See Section 7.3.8 “ALLCALLADR, LED All Call I2C-bus address” for more detail. Remark: The default LED All Call I2C-bus address (E0h or 1110 000) must not be used as a regular I2C-bus slave address since this address is enabled at power-up. All the PCA9625s on the I2C-bus will acknowledge the address if sent by the I2C-bus master. 7.1.3 LED Sub Call I2C-bus addresses • 3 different I2C-bus addresses can be used • Default power-up values: – SUBADR1 register: E2h or 1110 001 – SUBADR2 register: E4h or 1110 010 – SUBADR3 register: E8h or 1110 100 • Programmable through I2C-bus (volatile programming) • At power-up, Sub Call I2C-bus addresses are disabled. PCA9625 does not send an ACK when E2h (R/W = 0) or E3h (R/W = 1), E4h (R/W = 0) or E5h (R/W = 1), or E8h (R/W = 0) or E9h (R/W = 1) is sent by the master. See Section 7.3.7 “SUBADR1 to SUBADR3, I2C-bus subaddress 1 to 3” for more detail. Remark: The default LED Sub Call I2C-bus addresses may be used as regular I2C-bus slave addresses as long as they are disabled. 7.1.4 Software Reset I2C-bus address The address shown in Figure 4 is used when a reset of the PCA9625 needs to be performed by the master. The Software Reset address (SWRST Call) must be used with R/W = logic 0. If R/W = logic 1, the PCA9625 does not acknowledge the SWRST. See Section 7.6 “Software Reset” for more detail. Fig 3. Slave address R/W 002aab319 A6 A5 A4 A3 A2 A1 A0 hardware selectable slave address |
Similar Part No. - PCA9625 |
|
Similar Description - PCA9625 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |