pca9538d NXP Semiconductors, pca9538d Datasheet - Page 3

• Manufacturer Part Number: pca9538d
• Description: 8-bit I2c And Smbus Low Power I/o Port With Interrupt And Reset
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PIN CONFIGURATION — SO, TSSOP
PIN DESCRIPTION
BLOCK DIAGRAM
2006 Sep 21
8-bit I
I/O port with interrupt and reset
PIN NUMBER
SO, TSSOP
2
9–12
4–7
Figure 1. Pin configuration — SO, TSSOP
13
14
15
16
C-bus and SMBus low power
1
2
3
8
RESET
RESET
SDA
SCL
V
V
I/O0
I/O1
I/O2
I/O3
V
SS
A0
A1
A0
A1
DD
SS
1
2
3
4
5
6
7
8
PCA9538
PIN NUMBER
SW02172
HVQFN
7–10
2–5
15
16
11
12
13
14
1
6
FILTER
INPUT
16
15
14
13
12
11
10
9
NOTE: ALL I/Os ARE SET TO INPUTS AT RESET
POWER-ON
V
SDA
SCL
INT
I/O7
I/O6
I/O5
I/O4
RESET
DD
SYMBOL
RESET
I/O0–3
I/O4–7
SDA
SCL
V
V
INT
A0
A1
SS
DD
Figure 3. Block diagram
I
CONTROL
2
C/SMBUS
Address input 0
Address input 1
Active LOW reset input
I/O0 to I/O3
Supply ground
I/O4 to I/O7
Interrupt output (open drain)
Serial clock line
Serial data line
Supply voltage
3
PIN CONFIGURATION — HVQFN
WRITE pulse
READ pulse
8-BIT
RESET
Figure 2. Pin Configuration — HVQFN
I/O0
I/O1
I/O2
1
2
3
4
OUTPUT
PORTS
FILTER
INPUT/
I/O3
LP
FUNCTION
A1
TOP VIEW
V
SW02174
A0
SS
I/O4
V
DD
V
I/O5
SDA
CC
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
12
10
11
9
INT
SCL
INT
I/O7
I/O6
PCA9538
Product data sheet
SW02173