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參數(shù)資料
| 型號(hào)： | CAT1022ZD4I-28-T2 |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, DSO8 |
| 封裝： | 3 X 3 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-229, TDFN-8 |
| 文件頁(yè)數(shù)： | 15/21頁(yè) |
| 文件大?。?/td> | 239K |
| 代理商： | CAT1022ZD4I-28-T2 |
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CAT1021, CAT1022, CAT1023
Catalyst Semiconductor, Inc.
3
Doc. No. MD-3009 Rev. M
Characteristics subject to change without notice
PIN DESCRIPTION
RESET/RESET
:
RESET OUTPUT
(RESET CAT1021/23 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.
SDA:
SERIAL DATA ADDRESS
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.
SCL:
SERIAL CLOCK
Serial clock input.
MR
:
MANUAL RESET INPUT
Manual Reset input is a debounced input that can be
connected to an external source for Manual Reset.
Pulling the MR input low will generate a Reset
condition. Reset outputs are active while MR input is
low and for the reset timeout period after MR returns
to high. The input has an internal pull up resistor.
WP (CAT1021 Only):
WRITE PROTECT INPUT
When WP input is tied to VSS or left unconnected write
operations to the entire array are allowed. When tied
to VCC, the entire array is protected. This input has an
internal pull down resistor.
WDI (CAT1023 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.
PIN FUNCTION
Pin
Name
Function
NC
No Connect
RESET
Active Low Reset Input/Output
VSS
Ground
SDA
Serial Data/Address
SCL
Clock Input
RESET
Active High Reset Output (CAT1021/23)
VCC
Power Supply
WP
Write Protect (CAT1021 only)
MR
Manual Reset Input
WDI
Watchdog Timer Interrupt (CAT1023)
OPERATING TEMPERATURE RANGE
Industrial
-40C to 85C
Extended
-40C to 125C
CAT102X FAMILY OVERVIEW
Device
Manual
Reset
Input Pin
Watchdog
Monitor
Pin
Write
Protection
Pin
Independent
Auxiliary
Voltage Sense
RESET:
Active High
and LOW
EEPROM
CAT1021
SDA
2k
CAT1022
SDA
2k
CAT1023
WDI
2k
CAT1024
2k
CAT1025
2k
CAT1026
2k
CAT1027
WDI
2k
For supervisory circuits with embedded 16k EEPROM, please refer to the CAT1161, CAT1162 and CAT1163
data sheets.
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