LTC690IS8

所属类别：控制器controller
产品名称：微处理器监控电路
厂商：LINEAR
生产批号：08+
封装：SOP-8
库存状态：有库存
库存量：2800
最低订购量：1
详细资料：

Product Introduction

LTC690IS8 microprocessor monitoring circuit

peculiarity

保证复位确定在 V_CC = 1V
1.5mA 最大电源电流
RAM 芯片使能信号的快速 (最大 35ns) 板上选通
SO-8 和 S16 封装
4.65V 精准电压监视器
电源运行正常/复位延时：50ms、200ms 或可调
最少的外部元件数目
1μA 最大待机电流
用于电源故障或低电池电量报警的电压监视器
热限制
规定了整个温度范围内的性能
MAX690 系列的卓越升级产品

Typical applications:

description

The H (metal round cap), J (ceramic), and K (metal round cap) packages supplied by Lingliert are now discontinued.

The LTC®690 series provides full power monitoring and battery control functions for microprocessor reset, battery backup, CMOS RAM write protection, power failure alarm, and watchdog timing. A precise internal voltage reference and comparator circuit monitors the power lines. When the tolerance range is exceeded, the reset output will be forced into an operating state, and the chip enable output will unconditionally write protect the external memory. In addition, the RESET output will be guaranteed to be logically low, even when VCC is as low as 1V.

The LTC690 series utilizes a charge pump NMOS power switch to power active CMOS RAM and is designed for low dropout and low supply current. When the main power supply is lost, the secondary power supply (connected to the battery input pin) will power the RAM in standby state via a high-efficiency PMOS switch.

To provide early warning when a power failure is imminent, the LTC690 Series offers an internal comparator with user-defined thresholds. In addition, an internal watchdog timer is provided that will force the reset pin to enter the running state when the watchdog input is not transformed before a preset timeout period.

encapsulation

For complete and up to date package information and drawings, please refer to our packaging page

N-8, SO-8

以 PBF 结尾的器件型号表示这些是Lead-free器件。
型号当中包含 TR 或 TRM 的器件分别采用Tape and reel或 Pack of 500 micro tape and tape的形式进行装运。

Various package types and pricing

Device number	encapsulation	pins	temperature	Price (in batches of 1 ~ 99 pieces)	Price (in batches of 1000 pieces) *	RoHS data
LTC690CN8	PDIP	8	C	$4.17	$3.40	view
LTC690CN8#PBF	PDIP	8	C	$4.17	$3.40	view
LTC690CS8	SO	8	C	$4.58	$3.65	view
LTC690CS8#PBF	SO	8	C	$4.58	$3.65	view
LTC690CS8#TR	SO	8	C		$3.71	view
LTC690CS8#TRPBF	SO	8	C		$3.71	view
LTC690IN8	PDIP	8	I	$5.42	$4.40	view
LTC690IN8#PBF	PDIP	8	I	$5.42	$4.40	view
LTC690IS8	SO	8	I	$6.00	$4.80	view
LTC690IS8#PBF	SO	8	I	$6.00	$4.80	view
LTC690IS8#TR	SO	8	I		$4.86	view
LTC690IS8#TRPBF	SO	8	I		$4.86	view
purchase • Samples are requested

^* 美国价目表所列之价格仅供预算之用，单位为美元 (针对规定批量的美国 FOB 单价)，随时可能变更。国际销售价格有可能因为地方税额、费用和汇率而有所不同。如需了解特定批量的价格或货运报价，请您与微芯百年电子科技（深圳）有限公司联系。

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