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参数资料
| 型号： | CAT1022YI-28-GT3 |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR CPU 2K EEPR 8TSSOP |
| 标准包装： | 3,000 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 130 ms |
| 电压 - 阀值： | 2.85V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-TSSOP |
| 包装： | 带卷 (TR) |
CAT1021, CAT1022,
CAT1023
Supervisory Circuits with
I 2 C Serial 2k-bit CMOS
EEPROM, Manual Reset and
Watchdog Timer
http://onsemi.com
technology. Memory interface is via a 400 kHz I 2 C bus.
(WP). Write operations are disabled if WP is connected to a logic high.
become active, preventing the system microcontroller, ASIC or
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 TSSOP ? 8
CASE 646AA CASE 948S
The CAT1021 and CAT1023 provide a precision V CC sense circuit
and two open drain outputs: one (RESET) drives high and the other
(RESET) drives low whenever V CC 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 SOIC ? 8
CASE 751BD
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. MSOP ? 8 TDFN ? 8
The power supply monitor and reset circuit protect memory and CASE 846AD CASE 511AL
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 ORDERING INFORMATION
For Ordering Information details, see page 13.
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 V CC
sense circuit that prevents writes to memory whenever V CC falls below the reset threshold or until V CC 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
? 5 V, 3.3 V and 3 V Systems
? Five Threshold Voltage Options
? Watchdog Timer
? Active High or Low Reset
? Valid Reset Guaranteed at V CC = 1 V
? 400 kHz I 2 C Bus
? 2.7 V to 5.5 V 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 0.8 mm
? These Devices are Pb ? Free, Halogen Free/BFR Free
and are RoHS Compliant
? Semiconductor Components Industries, LLC, 2011
November, 2011 ? Rev. 18
1
Publication Order Number:
CAT1021/D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT1022YI-28T2 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer |
| CAT1022YI-28-T2 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer |
| CAT1022YI-28T3 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer |
| CAT1022YI-28-T3 | 功能描述:监控电路 2K bit 2.8V Ind Temp RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| CAT1022YI-28TE13 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer |
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