NXP Semiconductors
PCA9508
Hot swappable level translating I2C-bus repeater
3. Ordering information
Table 2. Ordering information
Tamb = −40 °C to +85 °C.
Type number Topside Package
mark
Name
Description
PCA9508D PCA9508 SO8
plastic small outline package; 8 leads; body width 3.9 mm
PCA9508DP 9508
TSSOP8[1] plastic thin shrink small outline package; 8 leads; body width 3 mm
[1] Also known as MSOP8.
Version
SOT96-1
SOT505-1
4. Functional diagram
PCA9508
SDAA
VCC(A)
VCC(B)
SDAB
SCLA
VCC(B)
pull-up
resistor
0.55VCC/
0.45VCC
UVLO
EN
100 µs
DELAY
CONNECT
STOP BIT AND
BUS IDLE
0.5 µA
20 pF
UVLO
0.5 pF
RD
QB
S
Fig 1. Functional diagram of PCA9508
SCLB
0.55VCC/
0.45VCC
CONNECT
002aac651
PCA9508_1
Product data sheet
Rev. 01 — 28 April 2008
© NXP B.V. 2008. All rights reserved.
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