PCA9555AHF,128 NXP Semiconductors, PCA9555AHF,128 Datasheet - Page 26

• Manufacturer Part Number: PCA9555AHF,128
• Description: Interface - I/O Expanders
• Manufacturer: NXP Semiconductors

Specifications of PCA9555AHF,128

• Rohs: yes
• Maximum Operating Frequency: 100 kHz
• Operating Supply Voltage: 1.65 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: HWQFN-24
• Operating Current: 160 mA
• Output Current: 25 mA
• Power Dissipation: 200 mW
• Product Type: I/O Expanders

NXP Semiconductors
14. Parameter measurement information
PCA9555A
Product data sheet
Fig 27. I
(1) See
a. SDA load configuration
b. Transaction format
c. Voltage waveforms
SDA
SCL
C
All inputs are supplied by generators having the following characteristics: PRR  10 MHz; Z
All parameters and waveforms are not applicable to all devices.
Byte 1 = I
2
condition
L
C-bus interface load circuit and voltage waveforms
STOP
includes probe and jig capacitance.
(P)
Figure
t
HD;STA
t
BUF
2
condition
C-bus address; Byte 2, byte 3 = P port data.
t
START
f
9.
(S)
t
LOW
Address
t
r
(MSB)
Bit 7
t
r
t
f
t
HIGH
All information provided in this document is subject to legal disclaimers.
t
SU;DAT
Low-voltage 16-bit I
Rev. 1 — 11 September 2012
two bytes for read Input port register
Address
DUT
Bit 1
t
SP
SDA
(LSB)
R/W
Bit 0
t
HD;DAT
V
DD
R L = 1 kΩ
C L = 50 pF
t
2
ACK
VD;DAT
002aaf848
(A)
C-bus I/O port with interrupt and weak pull-up
repeat START condition
t
VD;ACK
t
f(o)
(1)
(MSB)
Data
Bit 7
t
VD;ACK
STOP condition
o
(LSB)
= 50 ; t
Data
Bit 0
t
SU;STA
PCA9555A
r
/t
condition
f
STOP
 30 ns.
(P)
© NXP B.V. 2012. All rights reserved.
t
SU;STO
002aag952
0.7 × V
0.3 × V
0.7 × V
0.3 × V
002aag804
DD
DD
DD
DD
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