Datasheet > 1026ZD4E-30TE13

1026ZD4E-30TE13

更新时间： 2024-09-28 18:52:51

品牌	Logo	应用领域
CATALYST		/
页数	文件大小	规格书
17页	108K
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数据手册

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1026ZD4E-30TE13 数据手册

Preliminary Information

CAT1026, CAT1027

Dual Voltage Supervisory Circuits with I²C Serial 2K CMOS EEPROM

FEATURES

■ Precision V_CCpower supply voltage monitor

— 5V, 3.3V and 3V systems

■ 16-Byte page write buffer

■ Built-in inadvertent write protection

■ 1,000,000 Program/Erase cycles

■ Manual reset capability

— Five threshold voltage options

■ Additional voltage monitoring

— Externally adjustable down to 1.25V

■ 100 year data retention

■ Watchdog timer (CAT1027 only)

■ Active high or low reset

— Valid reset guaranteed to V_CC=1V

■ 400kHz I²C bus

■ 8-pin DIP, SOIC, TSSOP, TDFN (MSOP

(3x4.9mm) & 3x3mm foot prints) or MSOP

packages

— TDFN max height is 0.8mm

■ Automotive, extended automotive and

■ 2.7V to 5.5V operation

industrial temperature ranges

■ Low power CMOS technology

DESCRIPTION

The CAT1026 and CAT1027 are complete memory and used as an input for push-button manual reset capability.

supervisorysolutionsformicrocontroller-basedsystems.

The CAT1026 and CAT1027 provide an auxiliary voltage

A 2kbit serial EEPROM memory and a system power

sensor input, V_SENSE, which is used to monitor a second

supervisor with brown-out protection are integrated

system supply. The auxiliary high impedance comparator

together in low power CMOS technology. Memory

drives the open drain output, V_LOW, whenever the sense

interface is via a 400kHz I²C bus.

voltage is below 1.25V threshold.

The CAT1026 and CAT1027 provide a precision V_CC

TheCAT1027isdesignedwitha1.6secondwatchdogtimer

sense circuit with five reset threshold voltage options

circuit that resets a system to a known state if software or a

that support 5V, 3.3V and 3V systems. The power

hardware glitch halts or “hangs” the system. The CAT1027

supply monitor and reset circuit protects memory and

features a watchdog timer interrupt input, WDI.

systems controllers during power up/down and against

brownout conditions. If power supply voltages are out of

EEPROM memory features a 16-byte page. In addition,

tolerance reset signals become active preventing the

hardware data protection is provided by a V_CCsense circuit

system microcontroller, ASIC, or peripherals from

that prevents writes to memory whenever V_CCfalls below

the reset threshold or until V_CCreaches the reset threshold

operating.

during power up.

The CAT1026 features two open drain reset outputs:

one (RESET) drives high and the other (RESET) drives

low whenever V_CCfalls below the threshold. Reset

Available packages include 8-pin DIP and surface mount,

8-pin SO, 8-pin TSSOP, 8-pin TDFN and 8-pin MSOP

outputs become inactive typically 200 ms after the

packages. The TDFN package thickness is 0.8mm

supply voltage exceeds the reset threshold value. With

maximum. TDFN footprint options are 3x3mm or 3x4.9mm

both active high and low reset signals, interface to

(MSOP pad layout).

microcontrollers and other ICs is simple. CAT1027 has

onlyaRESET output. Inaddition, the RESET pincanbe

Doc No. 3010, Rev. E

Characteristics subject to change without notice

12 3 4 5 6 7...17

中文翻译

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与1026ZD4E-30TE13相关器件

型号	品牌	获取价格	描述	数据表
1026ZD4E-42TE13	CATALYST	获取价格	Power Supply Support Circuit, Adjustable, 2 Channel, CMOS, 3 X 3 MM, 0.80 MM HEIGHT, MSOP
1026ZD4E-45TE13	CATALYST	获取价格	Power Supply Support Circuit, Adjustable, 2 Channel, CMOS, 3 X 3 MM, 0.80 MM HEIGHT, MSOP
1026ZD4I-25TE13	CATALYST	获取价格	Power Supply Support Circuit, Adjustable, 2 Channel, CMOS, 3 X 3 MM, 0.80 MM HEIGHT, MSOP
1026ZE-25TE13	CATALYST	获取价格	Power Supply Support Circuit, Adjustable, 2 Channel, CMOS, PDSO8, MSOP-8
1026ZE-30TE13	CATALYST	获取价格	Power Supply Support Circuit, Adjustable, 2 Channel, CMOS, PDSO8, MSOP-8
1026ZE-42TE13	CATALYST	获取价格	Power Supply Support Circuit, Adjustable, 2 Channel, CMOS, PDSO8, MSOP-8
1026ZE-45TE13	CATALYST	获取价格	Power Supply Support Circuit, Adjustable, 2 Channel, CMOS, PDSO8, MSOP-8
1026ZI-25TE13	CATALYST	获取价格	Power Supply Support Circuit, Adjustable, 2 Channel, CMOS, PDSO8, MSOP-8
1026ZI-30TE13	CATALYST	获取价格	Power Supply Support Circuit, Adjustable, 2 Channel, CMOS, PDSO8, MSOP-8
1026ZI-45TE13	CATALYST	获取价格	Power Supply Support Circuit, Adjustable, 2 Channel, CMOS, PDSO8, MSOP-8

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