Datasheet > CAT1027LE-25

CAT1027LE-25

更新时间： 2025-07-21 18:43:07

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	191K
描述
2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, LEAD AND HALOGEN FREE, PLASTIC, DIP-8

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CAT1027LE-25 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：	DIP,	针数：	8
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.08
可调阈值：	YES	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：	2
功能数量：	1	端子数量：	8
最高工作温度：	125 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	DIP
封装形状：	RECTANGULAR	封装形式：	IN-LINE
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	4.57 mm	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 V
表面贴装：	NO	技术：	CMOS
温度等级：	AUTOMOTIVE	端子面层：	MATTE TIN
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

CAT1027LE-25 数据手册

CAT1026, CAT1027

Dual Voltage Supervisory Circuits with

I²C Serial 2k-bit CMOS EEPROM

supply monitor and reset circuit protects memory and

FEATURES

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.

ꢀ Precision V_CCPower Supply Voltage Monitor

— 5 V, 3.3 V and 3 V systems

— Five threshold voltage options

ꢀ Additional voltage monitoring

— Externally adjustable down to 1.25 V

ꢀ Watchdog timer (CAT1027 only)

ꢀ Active High or Low Reset

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 outputs become inactive typically 200ms 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

— Valid reset guaranteed at V_CC= 1 V

ꢀ 400 kHz I²C Bus

ꢀ 2.7 V to 5.5 V Operation

¯¯¯¯¯¯

has only a RESET output. In addition, the RESET pin

can be used as an input for push-button manual reset

capability.

ꢀ Low power CMOS technology

ꢀ 16-Byte Page Write Buffer

ꢀ Built-in inadvertent write protection

ꢀ 1,000,000 Program/Erase cycles

ꢀ Manual Reset capability

The CAT1026 and CAT1027 provide an auxiliary

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

second system supply. The auxiliary high impedance

comparator drives the open drain output, V_LOW

whenever the sense voltage is below 1.25 V threshold.

ꢀ 100 year data retention

ꢀ Industrial and extended temperature ranges

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.

ꢀ 8-pin DIP, SOIC, TSSOP, MSOP or TDFN

(3 x 3 mm foot-print) packages

— TDFN max height is 0.8 mm

For Ordering Information details, see page 19.

The on-chip 2k-bit EEPROM memory features a 16-byte

page. In addition, hardware data protection is provided

by a V_CCsense circuit that prevents writes to memory

whenever V_CCfalls below the reset threshold or until V_CC

reaches the reset threshold during power up.

DESCRIPTION

The CAT1026 and CAT1027 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 techno–

logy. Memory interface is via a 400 kHz I²C bus.

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

0.8 mm maximum. TDFN footprint is 3 x 3 mm.

The CAT1026 and CAT1027 provide a precision V_CC

sense circuit with five reset threshold voltage options

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

Characteristics subject to change without notice

Doc. No. MD-3010 Rev. P

12 3 4 5 6 7...20

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与CAT1027LE-25相关器件

型号	品牌	获取价格	描述	数据表
CAT1027LE-25TE13	CATALYST	获取价格	Dual Voltage Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM
CAT1027LE-28	CATALYST	获取价格	Power Supply Management Circuit, Adjustable, 2 Channel, CMOS, PDIP8, LEAD AND HALOGEN FREE
CAT1027LE-28	ONSEMI	获取价格	2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, LEAD AND HALOGEN FREE, PLASTIC, DIP-8
CAT1027LE-28TE13	CATALYST	获取价格	Dual Voltage Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM
CAT1027LE-30	CATALYST	获取价格	Power Supply Management Circuit, Adjustable, 2 Channel, CMOS, PDIP8, LEAD AND HALOGEN FREE
CAT1027LE-30	ONSEMI	获取价格	2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, LEAD AND HALOGEN FREE, PLASTIC, DIP-8
CAT1027LE-30TE13	CATALYST	获取价格	Dual Voltage Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM
CAT1027LE-42	CATALYST	获取价格	Power Supply Management Circuit, Adjustable, 2 Channel, CMOS, PDIP8, LEAD AND HALOGEN FREE
CAT1027LE-42	ONSEMI	获取价格	IC 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, LEAD AND HALOGEN FREE, PLASTIC, DIP-8, Po
CAT1027LE-42TE13	CATALYST	获取价格	Dual Voltage Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM

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