- 您现在的位置：买卖IC网 > PDF目录13687 > MAX6324DUT26+T (Maxim Integrated Products)IC SUPERVISOR 2.63V SOT23-6 PDF资料下载
参数资料
| 型号： | MAX6324DUT26+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/13页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR 2.63V SOT23-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 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： | 2.63V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-6 |
| 包装： | 带卷 (TR) |
μP Supervisory Circuits with Windowed
(Min/Max) Watchdog and Manual Reset
t WD1 (min)
t WD1 (max)
t WD2 (min)
t WD2 (max)
)
POSSIBLE STATES
CONDITION 1
CONDITION 2
CONDITION 3
GUARANTEED TO
ASSERT WDPO
*UNDETERMINED
GUARANTEED NOT TO
ASSERT WDPO
*UNDETERMINED
GUARANTEED TO
ASSERT WDPO
FAST FAULT
NORMAL OPERATION
SLOW FAULT
*UNDETERMINED STATES MAY OR MAY NOT GENERATE A FAULT CONDITION.
Figure 1. Detailed Watchdog Input Timing Relationship
Detailed Description
The MAX6323/MAX6324 μP supervisory circuits main-
tain system integrity by alerting the μP to fault condi-
tions. In addition to a standard V CC monitor (for
power-on reset, brownout detect, and power-down
reset), the devices include a sophisticated watchdog
timer that detects when the processor is running out-
side an expected window of operation for a specific
application. The watchdog signals a fault when the
input pulses arrive too early (faster than the selected
t WD1 timeout period) or too late (slower than the select-
ed t WD2 timeout period) (Figure 1). Incorrect timing can
lead to poor or dangerous system performance in tight-
ly controlled operating environments. Incorrect timing
could be the result of improper μP clocking or code
execution errors. If a timing error occurs, the
MAX6323/MAX6324 issue a watchdog pulse output,
independent from the reset output, indicating that sys-
tem maintenance may be required.
Watchdog Function
A pulse on the watchdog output WDPO can be trig-
gered by a fast fault or a slow fault. If the watchdog
input (WDI) has two falling edges too close to each
other (faster than t WD1 ) (Figure 2) or falling edges that
are too far apart (slower than t WD2 ) (Figure 3), WDPO is
pulsed low. Normal watchdog operation is displayed in
Figure 4 ( WDPO is not asserted). The internal watch-
dog timer is cleared when a WDI falling edge is detect-
ed within the valid watchdog window or when the
device’s RESET or WDPO outputs are deasserted. All
WDI input pulses are ignored while either RESET or
WDPO is asserted. Figure 1 identifies the input timing
regions where WDPO fault outputs will be observed
with respect to t WD1 and t WD2 . After RESET or WDPO
deasserts, the first WDI falling edge is ignored for the
fast fault condition (Figure 2).
Upon detecting a watchdog fault, the WDPO output will
pulse low for 1ms. WDPO is an open-drain output.
Connect a pullup resistor on WDPO to any supply up to
+6V.
V CC Reset
The MAX6323/MAX6324 also include a standard V CC
reset monitor to ensure that the μP is started in a known
state and to prevent code execution errors during
power-up, power-down, or brownout conditions.
RESET is asserted whenever the V CC supply voltage
6
_______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| GBB66DHHN-S621 | CONN EDGECARD 132POS .050 SOLDER |
| GSM18DTMH | CONN EDGECARD 36POS R/A .156 SLD |
| GBB66DHHD-S621 | CONN EDGECARD 132POS .050 SOLDER |
| GBB66DHHN-S578 | CONN EDGECARD 132POS .050 SLD |
| MAX6324CUT26+T | IC SUPERVISOR 2.63V SOT23-6 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6324DUT29 | 制造商:Maxim Integrated Products 功能描述:UP SUPERVISORY CIRCUIT WITH WINDOWE - Cut Tape Product |
| MAX6324DUT29+T | 功能描述:监控电路 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 |
| MAX6324DUT29-T | 功能描述:监控电路 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 |
| MAX6324DUT31 | 制造商:Maxim Integrated Products 功能描述:UP SUPERVISORY CIRCUIT WITH WINDOWE - Cut Tape Product |
| MAX6324DUT31+T | 功能描述:监控电路 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 |
发布紧急采购，3分钟左右您将得到回复。