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CAT1321YI-42SOIC Arkusz danych(PDF) 2 Page - Catalyst Semiconductor

Numer części CAT1321YI-42SOIC
Szczegółowy opis  Supervisory Circuits with I2C Serial 32K CMOS EEPROM
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Strona internetowa  http://www.catalyst-semiconductor.com
Logo CATALYST - Catalyst Semiconductor

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CAT1320, CAT1321
Advance Information
Doc. No. 25085, Rev. 00
PIN DESCRIPTION
RESET/
RESET
RESET
RESET
RESET
RESET:
RESET OUTPUTS
These are open-drain pins and
RESET can also 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.
SDA:
SERIAL DATA ADDRESS
The bidirectional serial data/address pin is used to trans-
fer 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.
BLOCK DIAGRAM — CAT1320, CAT1321
PIN FUNCTIONS
Pin Name
Function
RESET
Active Low Reset Input/Output (CAT1320)
VSS
Ground
SDA
Serial Data/Address
SCL
Clock Input
RESET
Active High Reset Output (CAT1321)
VCC
Power Supply
OPERATING TEMPERATURE RANGE
Industrial
-40˚C to 85˚C
Part Dash
Minimum
Maximum
Number
Threshold
Threshold
-45
4.50
4.75
-42
4.25
4.50
-30
3.00
3.15
-28
2.85
3.00
-25
2.55
2.70
Threshold Voltage Options
SCL:
SERIAL CLOCK
Serial clock input.
A0, A1, A2:
DEVICE ADDRESS INPUTS
When hardwired, up to eight CAT1320/21 devices may
be addressed on a single bus system (refer to Device
Addressing). When the pins are left unconnected, the
default values are zeros.
32kbit
DOUT
ACK
SENSE AMPS
SHIFT REGISTERS
CONTROL
LOGIC
WORD ADDRESS
BUFFERS
START/STOP
LOGIC
EEPROM
VCC
EXTERNAL LOAD
COLUMN
DECODERS
XDEC
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
VSS
SDA
RESET Controller
Precision
Vcc Monitor
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
SCL
RESET (CAT1320)
RESET (CAT1321)
A0
A1
A2


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