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參數(shù)資料
| 型號： | CAT104BC |
| 英文描述： | 12-Bit Digital-to-Analog Converter |
| 中文描述： | 12位數(shù)字到模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 114K |
| 代理商： | CAT104BC |
3
Preliminary Information
CAT1026, CAT1027
Doc No. 3010, Rev. G
PIN DESCRIPTION
RESET/
(RESET CAT1026 Only)
These are open drain pins and
RESET
can be used as a
manual reset trigger input. By forcing a reset condition on
the pin the device will initiate and maintain a reset condition.
The RESET pin must be connected through a pull-down
resistor, and the
RESET
pin must be connected through a
pull-up resistor.
RESET
:
RESET OUTPUTS
SDA:
The bidirectional serial data/address pin is used to transfer
all data into and out of the device. The SDA pin is an open
drain output and can be wire-ORed with other open drain
or open collector outputs.
SERIAL DATA ADDRESS
SCL:
Serial clock input.
SERIAL CLOCK
V
SENSE
:
AUXILIARY VOLTAGE MONITOR INPUT
The V
SENSE
input is a second voltage monitor which
is compared against CAT1026 and CAT1027 internal
reference voltage of 1.25V typically. Whenever the
input voltage is lower than 1.25V, the open drain
VLOW output will be driven low. An external resistor
divider is used to set the voltage level to be sensed.
Connect V
SENSE
to V
CC
if unused.
V
LOW
:
AUXILIARY VOLTAGE MONITOR OUTPUT
This open drain output goes low when V
SENSE
is less
than 1.25V and goes high when V
SENSE
exceeds the
reference voltage.
WDI (CAT1027 Only):
WATCHDOG TIMER INTERRUPT
Watchdog Timer Interrupt Input is used to reset the
watchdog timer. If a transition from high to low or low to
high does not occur every 1.6 seconds, the RESET
outputs will be driven active.
CAT10XX FAMILY OVERVIEW
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For supervisory circuits with embedded 16k EEPROM, please refer to the CAT1161, CAT1162 and CAT1163
data sheets.
PIN FUNCTIONS
Pin Name
RESET
Function
Active Low Reset Input/Output
V
SS
SDA
SCL
Ground
Serial Data/Address
Clock Input
RESET
Active High Reset Output (CAT1026 only)
V
CC
V
SENSE
V
LOW
WDI
Power Supply
Auxiliary Voltage Monitor Input
Auxiliary Voltage Monitor Output
Watchdog Timer Interrupt (CAT1027 only)
OPERATING TEMPERATURE RANGE
Industrial
Extended
-40
C to 85
C
-40
C to 125
C
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