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參數資料
型號: 1026RI-45TE13
元件分類: 電源管理
英文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝: MSOP-8
文件頁數: 1/17頁
文件大小: 108K
代理商: 1026RI-45TE13
DESCRIPTION
The CAT1026 and CAT1027 are complete memory and
supervisory solutions for microcontroller-based systems.
A 2kbit serial EEPROM memory and a system power
supervisor with brown-out protection are integrated
together in low power CMOS technology. Memory
interface is via a 400kHz I2C bus.
The CAT1026 and CAT1027 provide a precision VCC
sense circuit with five reset threshold voltage options
that support 5V, 3.3V and 3V systems. The power
supply monitor and reset circuit protects memory and
systems controllers during power up/down and against
brownout conditions. If power supply voltages are out of
tolerance reset signals become active preventing the
system microcontroller, ASIC, or peripherals from
operating.
The CAT1026 features two open drain reset outputs:
one (RESET) drives high and the other (
RESET) drives
low whenever VCC falls below the threshold. Reset
outputs become inactive typically 200 ms after the
supply voltage exceeds the reset threshold value. With
both active high and low reset signals, interface to
microcontrollers and other ICs is simple. CAT1027 has
only a
RESET output. In addition, the RESET pin can be
CAT1026, CAT1027
Dual Voltage Supervisory Circuits with I2C Serial 2K CMOS EEPROM
FEATURES
s Precision VCC power supply voltage monitor
— 5V, 3.3V and 3V systems
— Five threshold voltage options
s Additional voltage monitoring
— Externally adjustable down to 1.25V
s Watchdog timer (CAT1027 only)
s Active high or low reset
— Valid reset guaranteed to V
CC=1V
s 400kHz I2C bus
s 2.7V to 5.5V operation
s Low power CMOS technology
s 16-Byte page write buffer
s Built-in inadvertent write protection
s 1,000,000 Program/Erase cycles
s Manual reset capability
s 100 year data retention
s 8-pin DIP, SOIC, TSSOP, TDFN (MSOP
(3x4.9mm) & 3x3mm foot prints) or MSOP
packages
— TDFN max height is 0.8mm
s Automotive, extended automotive and
industrial temperature ranges
2003 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc No. 3010, Rev. E
used as an input for push-button manual reset capability.
The CAT1026 and CAT1027 provide an auxiliary voltage
sensor input, VSENSE, which is used to monitor a second
system supply. The auxiliary high impedance comparator
drives the open drain output, VLOW, whenever the sense
voltage is below 1.25V threshold.
The CAT1027 is designed with a 1.6 second watchdog timer
circuit that resets a system to a known state if software or a
hardware glitch halts or “hangs” the system. The CAT1027
features a watchdog timer interrupt input, WDI.
EEPROM memory features a 16-byte page. In addition,
hardware data protection is provided by a VCC sense circuit
that prevents writes to memory whenever VCC falls below
the reset threshold or until VCC reaches the reset threshold
during power up.
Available packages include 8-pin DIP and surface mount,
8-pin SO, 8-pin TSSOP, 8-pin TDFN and 8-pin MSOP
packages. The TDFN package thickness is 0.8mm
maximum. TDFN footprint options are 3x3mm or 3x4.9mm
(MSOP pad layout).
Preliminary Information
相關PDF資料
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相關代理商/技術參數
參數描述
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10-26UD-BD-16 功能描述:0.10 X 0.26 BD 16--10-26UD-BD-16 制造商:leader tech inc. 系列:TechMESH 零件狀態:在售 類型:簧片 形狀:- 寬度:0.260"(6.60mm) 長度:16.000"(406.40mm) 高度:0.110"(2.79mm) 材料:銅鈹 鍍層:沒有鍍層 鍍層 - 厚度:- 接合方法:膠合劑 工作溫度:-55°C ~ 121°C 標準包裝:20
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10-26UD-SN-16 功能描述:0.10 X 0.26 SN 16--10-26UD-SN-16 制造商:leader tech inc. 系列:TechMESH 零件狀態:在售 類型:簧片 形狀:- 寬度:0.260"(6.60mm) 長度:16.000"(406.40mm) 高度:0.110"(2.79mm) 材料:銅鈹 鍍層:錫 鍍層 - 厚度:閃存 接合方法:膠合劑 工作溫度:-55°C ~ 121°C 標準包裝:20
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