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| 型号： | MAX699EWE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/5页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR WATCHDOG 16-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极，推挽式 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 4.65V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 带卷 (TR) |
MAX698/MAX699
Low-Cost, Power-On Reset
and Watchdog Controllers
Pin Description
SO
1, 4, 9
2, 3
5–8, 10–14
PIN
PDIP
3, 4, 8
1, 2
5, 6
NAME
GND
V CC
N.C.
FUNCTION
Chip Power Ground
+5V Sense Input and MAX698/MAX699 Chip Power
No Connection
(MAX699 Only.) A three-level input. If WDI remains high or low for
11
6
WDI (MAX699 Only)
more than the watchdog timeout period, RESET pulses low ( WDO
also goes low on the MAX699 SO package). If WDI is unconnected,
the watchdog circuit is disabled.
(MAX699 Only.) Goes low when WDI remains high or low for more
14
—
WDO (MAX699 Only)
than the watchdog timeout period. WDO is set high at the next WDI
transition. If WDI is unconnected or at midsupply, WDO remains high.
WDO also remains high when V CC falls below 4.4V.
15
16
WDI*
7
—
RESET
RESET
WATCHDOG
TIMER
Goes low when V CC falls below internally set threshold (see the
Electrical Characteristics table).
Goes high when V CC falls below internally set threshold.
WDO*
RESET
RESET
TIMER
V CC
RESET*
V CC
POWER-ON
RESET
Figure 1. Block Diagram
Maxim Integrated
4.65V
GND
*WDI ON MAX699 ONLY
RESET ON SO PACKAGE ONLY
WDO ON SO MAX699 ONLY
MAX698
MAX699
3
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