PCA9600D,112 NXP Semiconductors, PCA9600D,112 Datasheet - Page 22

• Manufacturer Part Number: PCA9600D,112
• Description: IC DUAL BI-DIR BUS BUFFER 8-SOIC
• Manufacturer: NXP Semiconductors
• Type: Bufferr

Specifications of PCA9600D,112

• Package / Case: 8-SOIC (3.9mm Width)
• Mounting Type: Surface Mount
• Current - Supply: 7.3mA
• Voltage - Supply: 2.5 V ~ 15 V
• Delay Time: 100ns
• Capacitance - Input: 10pF
• Tx/rx Type: I²C Logic
• Supply Voltage (max): 15 V
• Supply Voltage (min): 2.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935285243112::PCA9600D::PCA9600D

NXP Semiconductors
PCA9600
Product data sheet
Fig 25. Wiring transients limited by a Schottky diode
Question: If we add 100 Ω to 200 Ω at signal line, the overshoot becomes slightly
smaller. Is this a good idea?
Answer: No, it is not necessary to add any resistance. When the logic signal generated
by TX or TY of PCA9600 drives long traces or wiring with ICs other than PCA9600
being driven, then adding a Schottky diode (BAT54A) as shown in
the wiring undershoot to a value that will not cause conduction of the IC’s internal
diodes.
All information provided in this document is subject to legal disclaimers.
voltage
SX
(V)
5 V
−2
RX
PCA9600
TX
Rev. 5 — 5 May 2011
6
4
2
0
horizontal scale = 62.5 ns/div
send
send
5 V
300 Ω
2 meter
cable
receive
5 V
1 / 2 BAT54A
300 Ω
receive
time (ns)
Dual bidirectional bus buffer
GND
RX
TX
002aaf083
5 V
SX
Figure 25
PCA9600
© NXP B.V. 2011. All rights reserved.
will clamp
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