參數(shù)資料
型號(hào)： CAT1023WI-25
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8
封裝： 0.150 INCH, HALOGEN FREE AND ROHS COMPLIANT, MS-012, SOIC-8
文件頁(yè)數(shù)： 1/21頁(yè)
文件大小： 307K
代理商： CAT1023WI-25
CAT1021, CAT1022, CAT1023
2007 Catalyst Semiconductor, Inc.
1
Doc. No. 3009 Rev. L
Characteristics subject to change without notice
Supervisory Circuits with I
2C Serial 2k-bit CMOS
EEPROM, Manual Reset and Watchdog Timer
FEATURES
Precision Power Supply Voltage Monitor
— 5V, 3.3V and 3V systems
— Five threshold voltage options
Watchdog Timer
Active High or Low Reset
— Valid reset guaranteed at VCC = 1V
400kHz I
2C Bus
2.7V to 5.5V Operation
Low power CMOS technology
16-Byte Page Write Buffer
Built-in inadvertent write protection
— WP pin (CAT1021)
1,000,000 Program/Erase cycles
Manual Reset Input
100 year data retention
Industrial and extended temperature ranges
8-pin DIP, SOIC, TSSOP, MSOP or TDFN
(3 x 3 mm foot-print) packages
— TDFN max height is 0.8mm
DESCRIPTION
The CAT1021, CAT1022 and CAT1023 are complete
memory and supervisory solutions for microcontroller-
based systems. A 2k-bit 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 I
2C bus.
The CAT1021 and CAT1023 provide a precision VCC
sense circuit and two open drain outputs: one (RESET)
drives high and the other (RESET
) drives low whenever
VCC falls below the reset threshold voltage. The
CAT1022 has only a RESET
output and does not have
a Write Protect input. The CAT1021 also has a Write
Protect input (WP). Write operations are disabled if WP
is connected to a logic high.
All supervisors have 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. For the
CAT1021 and CAT1022, the watchdog timer monitors
the SDA signal. The CAT1023 has a separate watchdog
timer interrupt input pin, WDI.
The power supply monitor and reset circuit protect
memory and system controllers during power up/down
and against brownout conditions. Five reset threshold
voltages support 5V, 3.3V and 3V systems. If power
supply voltages are out of tolerance reset signals
become active, preventing the system microcontroller,
ASIC or peripherals from operating. Reset signals
become inactive typically 200 ms after the supply voltage
exceeds the reset threshold level. With both active high
and low reset signals, interface to microcontrollers and
other ICs is simple. In addition, the RESET
pin or a
separate input, MR
, can be used as an input for push-
button manual reset capability.
The on-chip, 2k-bit 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 an 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.
相關(guān)PDF資料
PDF描述
CEM208M 2-OUTPUT 1.5 W DC-DC REG PWR SUPPLY MODULE
CAT505P SPECIALTY ANALOG CIRCUIT, PDIP20
CP3040-7RDG 3-OUTPUT 151 W DC-DC REG PWR SUPPLY MODULE
CP3040-9VI 3-OUTPUT 151 W DC-DC REG PWR SUPPLY MODULE
CAT1641LI-30-G 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CAT1023WI-25-A2 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述:
CAT1023WI-25-G 功能描述:監(jiān)控電路 CPU w/2K RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
CAT1023WI-25-GT2 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
CAT1023WI-25-GT3 功能描述:監(jiān)控電路 CPU SUP W/2K EEPROM RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
CAT1023WI-25T2 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*