參數(shù)資料
型號(hào): CAT1641
英文描述: Catalyst Semiconductor
中文描述: Catalyst半導(dǎo)體
文件頁數(shù): 14/28頁
文件大?。?/td> 844K
代理商: CAT1641
Visit our website for samples, data sheets, and additional product information.
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CAT9554 / CAT9554A —
8-bit I
2
C and SMBus I/O Port Expander with Interrupt
CAT9555 —
16-bit I
2
C and SMBus I/O Port Expander with Interrupt
Features
i
2
c a n d s m b u s i / o p o r t e x p a n d e r s
Features
low stand-by current
0 to 400 kHz clock frequency
2.3 V to 5.5 V operation
5 V tolerant I/Os
CAT9534 / CAT9535
8-bit / 16-bit I
2
C and SMBus Low Power I/O Port expander with Interrupt
active low interrupt output
internal power-on reset
noise filter on SCL/SDA inputs
Package Information
16-pin SOIC & 16-pin TSSOP (CAT9534), 24-pin SOIC (CAT9535)
16-pad TQFN (4 x 4 mm) (CAT9534), 24-pin TQFN (4x4mm) (CAT9535)
pin compatible with PCA9534
8-BIT
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
VCC
WRITE pulse
READ pulse
LP
FILTER
POWER-ON
RESET
INPUT
FILTER
I2C/SMBUS
CONTROL
A0
A1
A2
SCL
SDA
VCC
VSS
NOTE: ALL I/Os ARE SET TO INPUTS AT RESET
INPUT/
OUTPUT
PORTS
Applications
RAID systems
servers
test equipment
fan control
I/O0.0
I/O0.1
I/O0.2
I/O0.3
I/O0.4
I/O0.5
VDD
VDD
SCL
SDA
INT
RESET
GND
SCL
SDA
A2
A1
A0
VSS
VDD
SUBSYSTEM 3
SUBSYSTEM 2
SUBSYSTEM 1
INT
V
ALARM
DD
Controlled Switch
ENABLE
2 k
A
B
INT
I/O0.6
I/O0.7
I/O1.0
I/O1.1
I/O1.2
I/O1.3
I/O1.4
I/O1.5
I/O1.6
I/O1.7
NUMERIC
KEYPAD
CAT9535
M
Timer
2.3V to 5.5V operation
-40°C to +85°C operation
400kHz I
2
C bus compatible
5V tolerant I/Os
drive LEDs by sinking 25mA current
active low interrupt output
cascadable up to 8 devices-16
devices (CAT9555)
high drive capability
individual I/O configuration
internal power-on reset
noise filter on SDA/SCL inputs
16-pin SOIC (CAT9554), 24-pin SOIC (CAT9555)
16-pin TSSOP (CAT9554), 24-pin TSSOP (CAT9555)
16-pad TQFN (4 x 4 mm) (CAT9554), 24-pin TQFN
(4x4mm) (CAT9555)
pin compatible with PCA9554/9554A and PCA9555
Package Information
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