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| 型号： | CAT1027ZI-45-GT3 |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR CPU 2K EEPR 8MSOP |
| 标准包装： | 3,000 |
| 类型： | 多压监控器 |
| 监视电压数目： | 2 |
| 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： | 4.5V，可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 带卷 (TR) |
The CAT1026 and CAT1027 are complete memory and supervisory
3 V systems. The power supply monitor and reset circuit protects
The CAT1026 features two open drain reset outputs: one (RESET)
drives high and the other (RESET) drives low whenever V CC falls
the RESET pin can be used as an input for push ? button manual reset
auxiliary high impedance comparator drives the open drain output,
The CAT1027 is designed with a 1.6 second watchdog timer circuit
CAT1026, CAT1027
Dual Voltage Supervisory
Circuits with I 2 C Serial
2k-bit CMOS EEPROM
Description
http://onsemi.com
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 400 kHz I 2 C bus.
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 PDIP ? 8 TSSOP ? 8
CASE 646AA CASE 948S
memory and 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.
SOIC ? 8
CASE 751BD
below the threshold. Reset outputs become inactive typically 200 ms
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 has only a RESET output. In addition,
MSOP ? 8 TDFN ? 8
capability. CASE 846AD CASE 511AL
The CAT1026 and CAT1027 provide an auxiliary voltage sensor
input, V SENSE , which is used to monitor a second system supply. The
ORDERING INFORMATION
V LOW , whenever the sense voltage is below 1.25 V threshold.
For Ordering Information details, see page 13.
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.
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 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.
Features
? Precision V CC Power 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
? 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
? Semiconductor Components Industries, LLC, 2011
November, 2011 ? Rev. 18
1
?
?
?
?
?
?
?
?
16 ? Byte Page Write Buffer
Built ? in Inadvertent Write Protection
1,000,000 Program/Erase Cycles
Manual Reset Capability
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
Publication Order Number:
CAT1026/D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT1027ZI-45-T3 | 功能描述:监控电路 CPU w/2K 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 |
| CAT102EUK-TE7 | 功能描述:基准电压& 基准电流 600mV w/Open Colectr RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| CAT102TBI-GTE7 | 功能描述:直流/直流开关转换器 600mV Adj RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| CAT102TDI-GT3 | 功能描述:直流/直流开关转换器 Prec,Adj Shunt Reg 600mV RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| CAT10-300J4 | 功能描述:电阻器网络与阵列 30ohm 5% Concave 4resistors RoHS:否 制造商:Vishay/Thin Film 产品类型:Networks 电路类型:Divider 电阻器数量: 电阻数值:10 kOhms 容差:0.1 % 温度系数: 管脚数量:3 工作温度范围:- 55 C to + 155 C 尺寸:1.02 mm W x 3.05 mm L x 1.4 mm H 引线间隔: 端接类型:SMD/SMT 封装:Reel |
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