Datasheet > CAT1021LI28

CAT1021LI28

更新时间： 2024-11-23 13:49:35

品牌	Logo	应用领域
安森美 - ONSEMI		光电二极管
页数	文件大小	规格书
20页	197K
描述
1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, 0.300 INCH, HALOGEN FREE AND ROHS COMPLIANT, PLASTIC, DIP-8

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CAT1021LI28 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	DIP
包装说明：	0.300 INCH, HALOGEN FREE AND ROHS COMPLIANT, PLASTIC, DIP-8	针数：	8
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.07
可调阈值：	NO	模拟集成电路 - 其他类型：	POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码：	R-PDIP-T8	JESD-609代码：	e3
长度：	9.59 mm	信道数量：	1
功能数量：	1	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	DIP
封装等效代码：	DIP8,.3	封装形状：	RECTANGULAR
封装形式：	IN-LINE	峰值回流温度（摄氏度）：	260
电源：	3.3/5 V	认证状态：	Not Qualified
座面最大高度：	4.57 mm	子类别：	Power Management Circuits
最大供电电流 (Isup)：	3 mA	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	3 V	标称供电电压 (Vsup)：	3.3 V
表面贴装：	NO	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Tin (Sn)
端子形式：	THROUGH-HOLE	端子节距：	2.54 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	7.62 mm	Base Number Matches：	1

CAT1021LI28 数据手册

CAT1021, CAT1022,

CAT1023

Supervisory Circuits with

I²C Serial 2k-bit CMOS

EEPROM, Manual Reset and

Watchdog Timer

http://onsemi.com

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

PDIP−8

CASE 646AA

TSSOP−8

CASE 948S

technology. Memory interface is via a 400 kHz I C bus.

The CAT1021 and CAT1023 provide a precision V^CCsense 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 5 V, 3.3 V and 3 V

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.

SOIC−8

CASE 751BD

MSOP−8

CASE 846AD

TDFN−8

CASE 511AL

ORDERING INFORMATION

For Ordering Information details, see page 13.

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 PDIP and surface mount 8−pin SO, 8−pin TSSOP, 8−pin TDFN and 8−pin MSOP

packages. The TDFN package thickness is 0.8 mm maximum. TDFN footprint options are 3 x 3 mm.

Features

• Precision Power Supply Voltage Monitor

• Built−in Inadvertent Write Protection

♦ WP Pin (CAT1021)

♦ 5 V, 3.3 V and 3 V Systems

♦ Five Threshold Voltage Options

• 1,000,000 Program/Erase Cycles

• Manual Reset Input

• Watchdog Timer

• Active High or Low Reset

♦ Valid Reset Guaranteed at VCC = 1 V

• 100 Year Data Retention

• Industrial and Extended Temperature Ranges

• 400 kHz I C Bus

• 8−pin DIP, SOIC, TSSOP, MSOP or TDFN (3 x 3 mm

• 2.7 V to 5.5 V Operation

Foot−print) Packages

• Low Power CMOS Technology

• 16−Byte Page Write Buffer

♦ TDFN Max Height is 0.8 mm

• These Devices are Pb−Free, Halogen Free/BFR Free

and are RoHS Compliant

Publication Order Number:

November, 2011 − Rev. 18

CAT1021/D

12 3 4 5 6 7...20

中文翻译

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与CAT1021LI28相关器件

型号	品牌	获取价格	描述	数据表
CAT1021LI-28	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
CAT1021LI-28	ONSEMI	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, 0.300 INCH, HALOGEN FREE AND ROHS COMPLIANT,
CAT1021LI-28-G	ONSEMI	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS
CAT1021LI-28-GT2	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
CAT1021LI-28-GT3	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
CAT1021LI-28T2	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
CAT1021LI-28-T2	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
CAT1021LI-28T3	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
CAT1021LI-28-T3	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
CAT1021LI-28TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer

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