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参数资料
| 型号： | X4283S8I-2.7 |
| 厂商： | Intersil |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC SUPERV 128K EE RST LO 8SOIC |
| 标准包装： | 200 |
| 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 100 ms |
| 电压 - 阀值： | 2.62V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 管件 |
?
X4283, X4285
128K, 16K x 8 Bit
Data Sheet
May 23, 2006
FN8121.1
CPU Supervisor with 128K EEPROM
FEATURES
? Selectable watchdog timer
? Low V CC detection and reset assertion
—Four standard reset threshold voltages
—Adjust low V CC reset threshold voltage using
special programming sequence
—Reset signal valid to V CC = 1V
? Low power CMOS
—<20μA max standby current, watchdog on
—<1μA standby current, watchdog OFF
—3mA active current
? 128Kbits of EEPROM
—64 byte page write mode
—Self-timed write cycle
—5ms write cycle time (typical)
? 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
? 2.7V to 5.5V power supply operation
? Available packages
—8 Ld SOIC
—8 Ld TSSOP
? Pb-free plus anneal available (RoHS compliant)
BLOCK DIAGRAM
DESCRIPTION
The X4283, X4285 combines 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 system cost, reduces board space require-
ments, 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 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/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 set minimum V CC
trip point. RESET/RESET is asserted until V CC returns
to proper operating level and stabilizes. Four industry
standard Vtrip thresholds are available, however, Inter-
sil’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.
WP
Watchdog Transition
Detector
Protect Logic
Watchdog
Timer Reset
SDA
SCL
S0
S1
Data
Register
Command
Decode &
Control
Logic
Status
Register
E EPROM Arra y
Reset &
Watchdog
Timebase
RESET (X4283)
RESET (X4285)
V CC Threshold
Reset logic
V CC
V TRIP
+
-
Power-on and
Low Voltage
Reset
Generation
Kb=Kilobyte
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005-2006. 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 |
|---|---|
| X4283S8I-4.5A | 功能描述:IC SUPERVISOR CPU 128K EE 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:100 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:- 复位:低有效 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:8-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:8-TSSOP 包装:管件 |
| X4283S8IZ | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:CPU Supervisor with 128K EEPROM |
| X4283S8IZ-2.7 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:CPU Supervisor with 128K EEPROM |
| X4283S8IZ-2.7A | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:CPU Supervisor with 128K EEPROM |
| X4283S8Z | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:CPU Supervisor with 128K EEPROM |
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