TC1232 _ BDTIC 中国领先电子元器件代理商

TC1232

TC1232 is a fully-integrated processor supervisor. It provides three important functions to safeguard processor sanity: precision power on/off reset control, watchdog timer and external reset override. On power-up, the TC1232 holds the processor in the reset state for a minimum of 250msec after VCC is within tolerance to ensure a stable system start-up. Microprocessor sanity is monitored by the on-board watchdog circuit. The microprocessor must provide a periodic low-going signal on the ST input. Should the processor fail to supply this signal within the selected time-out period (150msec, 600msec or 1200msec), an out-of-control processor is indicated and the TC1232 issues a processor reset as a result. The outputs of the TC1232 are immediately driven active when the PB input is brought low by an external push-button switch or other electronic signal. When connected to a push-button switch, the TC1232 provides contact debounce. The TC1232 is packaged in a space-saving 8-pin plastic DIP or SOIC package and requires no external components.

产品特性

Precision Voltage Monitor Adjustable +4.5V or +4.75V
No External Components, Adjustable Watchdog Timer: 150msec, 600msec or 1.2sec
Debounced Manual Reset Input for External Override

技术参数

Parameter Name Value	Value
Manual Reset Yes	Yes
Watchdog Timer Yes	Yes
Typical Reset Pulse Width (ms) 610	610
Reset Type Active Low/High	Active Low/High
Typical Supply Current (uA) 50	50
Vcc Range Min (V) 4.5	4.5
Vcc Range Max (V) 5.5	5.5
Output Push-Pull/Open-Drain	Push-Pull/Open-Drain
Temp Range Min. (°C) -40	-40
Temp Range Max. (°C) +85	+85
Nominal Reset Voltage (V) 4.50, 4.25	4.50, 4.25

文档资料

TC1232 Datasheet	Data Sheets	02/28/2014	566KB
AN686 - Understanding and Using Supervisory Circuits	AppNote	05/13/2003	84KB
AN820 - System Supervisors in ICSP™ Architectures	AppNote	10/05/2006	111KB
Analog & Interface Guide (Volume 2)	Brochures	10/11/2005	1067KB
Quick Guide to Microchip Development Tools	Brochures	10/15/2014	11223KB
Microcontroller Supervisor Family Product Overview	Product Line Documents	06/13/2006	91KB
Analog & Interface Product Selector Guide	Product Line Card	03/21/2016	4116KB
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board User's Guide	User Guides	01/24/2006	1367KB

订购型号

Part Number	Leads	Package Type	Temp Range	Packing	1+	26+	100+	1000+	5000+
TC1232COA	8	SOIC	0C to +70C	TUBE	1.32	1.10	1.00	0.83	0.77
TC1232COA713	8	SOIC	0C to +70C	T/R	1.32	1.10	1.00	0.83	0.77
TC1232COE	16	SOIC	0C to +70C	TUBE	2.27	1.89	1.72	1.43	1.32
TC1232COE713	16	SOIC	0C to +70C	T/R	2.27	1.89	1.72	1.43	1.32
TC1232CPA	8	PDIP	0C to +70C	TUBE	1.32	1.10	1.00	0.83	0.77
TC1232EOA	8	SOIC	-40C to +85C	TUBE	1.32	1.10	1.00	0.83	0.77
TC1232EOA713	8	SOIC	-40C to +85C	T/R	1.32	1.10	1.00	0.83	0.77
TC1232EOE	16	SOIC	-40C to +85C	TUBE	2.90	2.42	2.20	1.83	1.69
TC1232EOE713	16	SOIC	-40C to +85C	T/R	2.90	2.42	2.20	1.83	1.69
TC1232EPA	8	PDIP	-40C to +85C	TUBE	1.32	1.10	1.00	0.83	0.77

器件无铅环保信息

PartNumber	DeviceWeight	ShippingWeight	LeadCount	PackageType	PackageWidth	SolderComposition	JEDECIndicator
TC1232EPA	0.486700	0.900000	8	PDIP	.300in	Matte Tin	e3
TC1232CPA	0.486700	0.900000	8	PDIP	.300in	Matte Tin	e3
TC1232EOA	0.078000	0.160000	8	SOIC	.150In(3.90mm)	Matte Tin	e3
TC1232EOA713	0.078000	0.230303	8	SOIC	.150In(3.90mm)	Matte Tin	e3
TC1232COA	0.078000	0.160000	8	SOIC	.150In(3.90mm)	Matte Tin	e3
TC1232COA713	0.078000	0.230303	8	SOIC	.150In(3.90mm)	Matte Tin	e3
TC1232COE	0.438000	0.765957	16	SOIC	.300 In	Matte Tin	e3
TC1232COE713	0.438000	0.800000	16	SOIC	.300 In	Matte Tin	e3
TC1232EOE	0.438000	0.765957	16	SOIC	.300 In	Matte Tin	e3
TC1232EOE713	0.438000	0.800000	16	SOIC	.300 In	Matte Tin	e3