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参数资料
| 型号： | X5645S14 |
| 厂商： | Intersil |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC CPU SUPRV 64K EE RST HI SO14 |
| 标准包装： | 100 |
| 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： | 高有效 |
| 复位超时： | 最小为 100 ms |
| 电压 - 阀值： | 4.38V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOICN |
| 包装： | 管件 |
?
X5643, X5645
(Replaces X25643, X25645)
Data Sheet
July 18, 2005
FN8135.1
CPU Supervisor with 64Kbit SPI EEPROM
FEATURES
? Selectable watchdog timer
? Low V CC detection and reset assertion
—Five standard reset threshold voltages
—Re-program low V CC reset threshold voltage
using special programming sequence
—Reset signal valid to V CC = 1V
? Determine watchdog or low voltage reset with a
volatile flag bit
? Long battery life with low power consumption
—<50μA max standby current, watchdog on
—<1μA max standby current, watchdog off
—<400μA max active current during read
? 64Kbits of EEPROM
? Built-in inadvertent write protection
—Power-up/power-down protection circuitry
—Protect 0, 1/4, 1/2 or all of EEPROM array with
Block Lock ? protection
—In circuit programmable ROM mode
? 2MHz SPI interface modes (0,0 & 1,1)
? Minimize EEPROM programming time
—32-byte page write mode
—Self-timed write cycle
—5ms write cycle time (typical)
? 2.7V to 5.5V and 4.5V to 5.5V power supply
operation
? Available packages
—8-lead PDIP, 14-lead SOIC
BLOCK DIAGRAM
Watchdog Transition
Detector
DESCRIPTION
These devices combine four popular functions, Power-
on Reset Control, Watchdog Timer, Supply Voltage
Supervision, and Block Lock Protect Serial EEPROM
Memory in one package. This combination lowers sys-
tem cost, reduces board space requirements, and
increases reliability.
Applying power to the device activates the power-on
reset circuit which holds RESET/RESET active for a
period of time. This allows the power supply and oscilla-
tor to stabilize before the processor can execute code.
The Watchdog Timer provides an independent protection
mechanism for microcontrollers. When the microcon-
troller fails to restart a timer within a selectable time out
interval, the device activates the RESET/RESET signal.
The user selects the interval from three preset values.
Once selected, the interval does not change, even after
cycling the power.
The device’s low V CC detection circuitry protects the
user’s system from low voltage conditions, resetting
the system when V CC falls below the minimum V CC
trip point. RESET/RESET is asserted until V CC returns
to proper operating level and stabilizes. Five industry
standard V TRIP thresholds are available, however,
Intersil’s unique circuits allow the threshold to be repro-
grammed to meet custom requirements or to fine-tune
the threshold for applications requiring higher precision.
Watchdog
Timer Reset
WP
Protect Logic
SI
SO
Data
Register
Status
Register
RESET/RESET
SCK
CS/WDI
Command
Decode &
Control
Logic
16Kbits
16Kbits
Reset &
Watchdog
Timebase
X5643 = RESET
X5645 = RESET
V CC Threshold
Reset logic
32Kbits
Power-on and
V CC
V TRIP
+
-
Low Voltage
Reset
Generation
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| X5645S14-1.8 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:SPI Serial EEPROM with Supervisory Features |
| X5645S14-2.7 | 功能描述:IC CPU SUPRV 64K EE RST HI SO14 RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:1 系列:- 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:标准传输延迟为 60 µs 电压 - 阀值:3V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:Digi-Reel® 其它名称:LM8364BALMF30DKR |
| X5645S14-2.7A | 制造商:XICOR 制造商全称:Xicor Inc. 功能描述:CPU Supervisor with 64Kbit SPI EEPROM |
| X5645S14-4.5A | 制造商:XICOR 制造商全称:Xicor Inc. 功能描述:CPU Supervisor with 64Kbit SPI EEPROM |
| X5645S14I | 制造商:XICOR 制造商全称:Xicor Inc. 功能描述:CPU Supervisor with 64Kbit SPI EEPROM |
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