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MAXIM - 3.0V/3.3V Adjustable Microprocessor Supervisory Circuits - Supervisors, Voltage Monitors, Sequencers

3.0V/3.3V Adjustable Microprocessor Supervisory Circuits 此图片只做参考用
真图请以实物为准
库存状况
  • 库存数量: 28
  • 包装规格:
  • 最小订单量:1
  • 多重订单量:1
  • 单位价格(不含税):CNY 28.00
数量:
价格
    数量单位价格(不含税)
    1-24CNY 28.00
    25-49CNY 26.60
    50-99CNY 25.20
    100-249CNY 23.80
  • 制造商:MAXIM
  • 库存编号:1616241
  • 商品型号:MAX793TCSE-T
  • RoHS胁从产品:
  • 备注:
  • 产品描述:
The MAX793/MAX794/MAX795 microprocessor (μP) supervisory circuits monitor and control the activities of +3.0V/+3.3V μPs by providing backup-battery switchover, among other features such as low-line indication, μP reset, write protection for CMOS RAM, and a watchdog (see the Selector Guide in the full data sheet). The backup-battery voltage can exceed VCC, permitting the use of 3.6V lithium batteries in systems using 3.0V to 3.3V for VCC.

The MAX793/MAX795 offer a choice of reset threshold voltage range (denoted by suffix letter): 3.00V to 3.15V (T), 2.85V to 3.00V (S), and 2.55V to 2.70V (R). The MAX794's reset threshold is set externally with a resistor divider. The MAX793/MAX794 are available in 16-pin DIP and narrow SO packages, and the MAX795 comes in 8-pin DIP and SO packages.

Key Features
MAX793/MAX794/MAX795
Precision Supply-Voltage Monitor:
Fixed Reset Trip Voltage (MAX793/MAX795)
Adjustable Reset Trip Voltage (MAX794)
Guaranteed Reset Assertion to VCC = 1V
Backup-Battery Power Switching—Battery Voltage Can Exceed VCC
On-Board Gating of Chip-Enable Signals—7ns Max Propagation Delay
MAX793/MAX794 Only
Battery Freshness Seal
Battery OK Output (MAX793)
Uncommitted Voltage Monitor for Power-Fail or Low-Battery Warning
Independent Watchdog Timer (1.6s timeout)
Manual Reset Input
Underwriters Laboratories (UL) Recognized
 
Applications/Uses
Battery-Powered Computers/Controllers
Critical μP Power Monitoring
Embedded Controllers
Intelligent Controllers
Portable Equipment

Diagram

MAX793, MAX793R, MAX793S, MAX793T, MAX794, MAX795, MAX795R, MAX795S, MAX795T: Typical Operating Circuit
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