pca9539 datasheet
Table Of Contents
- 1 Features
- 2 Description
- Table of Contents
- 3 Revision History
- 4 Description (Continued)
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Parameter Measurement Information
- 8 Detailed Description
- 9 Application And Implementation
- 10 Power Supply Recommendations
- 11 Device and Documentation Support
- 12 Mechanical, Packaging, and Orderable Information
SDA
SCL
Start
ACK or Read Cycle
t
w
t
REC
RESET
0.3 y V
CC
V
CC
/2
t
RESET
Pn
R
L
= 1 kΩ
V
CC
C
L
= 50 pF
(see Note A)
SDA LOAD CONFIGURATION
DUT
SDA
P-PORT LOAD CONFIGURATION
V
CC
/2
t
RESET
DUT
C
L
= 50 pF
(see Note A)
Pn
2 × V
CC
500 W
500 W
PCA9539
www.ti.com
SCPS130G –AUGUST 2005–REVISED JUNE 2014
Parameter Measurement Information (continued)
A. C
L
includes probe and jig capacitance.
B. All inputs are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z
O
= 50 Ω, t
r
/t
f
≤ 30 ns.
C. The outputs are measured one at a time, with one transition per measurement.
D. I/Os are configured as inputs.
E. All parameters and waveforms are not applicable to all devices.
Figure 16. Reset Load Circuits And Voltage Waveforms
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