参数资料
| 型号： | X40626V14T1 |
| 厂商： | Intersil |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR CPU DUAL 14-TSSOP |
| 标准包装： | 2,500 |
| 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 100 ms |
| 电压 - 阀值： | 2.93V，4.38V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 包装： | 带卷 (TR) |
?
X40626
64K, 8K x 8 Bit
PRELIMINARY
Data Sheet
March 28, 2005
FN8119.0
Dual Voltage CPU Supervisor with 64K
Serial EEPROM
FEATURES
? Dual voltage monitoring
—V 2Mon operates independent of V CC
? Watchdog timer with selectable timeout intervals
? Low V CC detection and reset assertion
—Four standard reset threshold voltages
—User programmable V TRIP threshold
—Reset signal valid to V CC =1V
? Low power CMOS
—20μA max standby current, watchdog on
—1μA standby current, watchdog OFF
? 64Kbits of EEPROM
—64 byte page size
? Built-in inadvertent write protection
—Power-up/power-down protection circuitry
—Protect 0, 1/4, 1/2, all or 64, 128, 256 or 512
bytes of EEPROM array with programmable
Block Lock ? protection
? 400kHz 2-wire interface
—Slave addressing supports up to 4 devices on
the same bus
BLOCK DIAGRAM
? 2.7V to 5.5V power supply operation
? Available Packages
—14-lead SOIC
—14-lead TSSOP
DESCRIPTION
The X40626 combines four popular functions, Power-on
Reset Control, Watchdog Timer, Dual Supply Voltage
Supervision, and Serial EEPROM Memory in one pack-
age. This combination lowers system cost, reduces
board space requirements, and increases reliability.
Applying power to the device activates the power-on
reset circuit which holds RESET active for a period of
time. This allows the power supply and oscillator to stabi-
lize before the processor can execute code.
The Watchdog Timer provides an independent protec-
tion mechanism for microcontrollers. When the micro-
controller fails to restart a timer within a selectable time-
out interval, the device activates the RESET signal. The
user selects the interval from three preset values. Once
selected, the interval does not change, even after cycling
the power.
V2MON
WP
V2 Monitor
Logic
Watchdog Transition
Detector
Protect Logic
+
V TRIP2
-
Watchdog
Timer Reset
V2FAIL
SDA
SCL
S0
S1
Data
Register
Command
Decode &
Control
Logic
V CC Threshold
Status
Register
64KB
EEPROM
Array
Reset &
Watchdog
Timebase
RESET
Reset logic
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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