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TC3299A, TC3299CE, TC32M

Table of contents:
Info of TC3299A
Info of TC3299CE
Info of TC32M

TC3299A, TC3299CE, TC32M Selling Leads, Datasheet

MFG:TAMARACK Package Cooled:SOP D/C:2001+

TC3299A, TC3299CE, TC32M Datasheet download

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Part Number: TC3299A

MFG: TAMARACK

Package Cooled: SOP

D/C: 2001+

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TC3299A General Description

The TC3299A (EPCC) is designed to reduce parts count and cost for easy implementation of PCMCIA CSMA/CD Local Area Networks. The TC3299A is the integration of the entire bus interface for PCMCIA BUS and which it includes Ethernet controller, Manchester Encoder/decoder, 10BaseT function and AUI interface. It complies with IEEE 802.3 standards. TC3299A is compatible to NS8390 controller's register and Novell NE2000 industry Ethernet standard. To store CIS, TC3299A needs EEPROM 93C56/66 in PCMCIA LAN CARD to reduce part cost. Physical media 10BaseT, AUI interface are fully automatic detection. LED driver for Link and other activities are also provided.

10BaseT functional block includes receiver and transmitter, collision, loopback, jabber and link integrity. The Polarity Detection/Correction blocks are also defined as in the standard.

TC3299A uses analog Phase Lock Loop method for the Manchester encoding and the decoding method is specified by the IEEE 802.3 specification in the 10Mbit/sec transmission section. A collision detect translator and diagnostic Loopback Capability are also included in the TC3299A.

TC3299A is designed for conventional PCMCIA LAN CARD with AUI cable connecting to external MAU. TC3299A provides both UTP and AUI interface for maximum flexibility.

TC3299A Maximum Ratings

AMBIENT TEMPERATURE UNDER BIAS................. 0 TO 70
STORAGE TEMPERATURE............................... -40 TO 125
VOLTAGE ON ALL INPUT AND
OUTPUTS WITH RESPECT TO VSS...................... -0.5V TO 7V

TC3299A Features

·PCMCIA 2.01 bus interface.
·Use serial EEPROM 93C56/93C66 to store CIS.
·NE2000 compatible.
·IEEE 802.3 compatible.
·NS8390 Register compatible controller.
·Endec, UTP, AUI, and included.
·Auto media select between AUI and UTP.
·LED support for activity and Link.
·100-pin LQFP package.
·Low Power CMOS process.
·TC3299A for UTP and AUI interface.

TC3299A Connection Diagram

TC32M General Description

The TC32M is a fully-integrated processor supervisor in a 3-pin package. 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 TC32M holds the processor in the reset state for a minimum of 500msec after VDD 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 high-to-low level shift (through an external resistor divider) on the RS pin of the TC32M. Should the processor fail to supply this signal within the specified timeout period (typically 700msec), an out-of-control processor is indicated and the TC32M issues a processor reset as a result. The output of the TC32M can be wire-ORed with a push-button switch (or electronic signal) to override the TC32M and unconditionally reset the processor. When connected to a push-button switch, the TC32M provides contact debounce. The TC32M is packaged in a space-saving TO-92 or SOT-223 package. It provides all of the functionality of the industry standard TC1232 in a smaller, lower cost configuration.

TC32M Maximum Ratings

Parameter Name Value Manual Reset No Watchdog Timer Yes Typical Reset Pulse Width (ms) 500 Reset Type Active Low Typical Supply Current (uA) 50 Vcc Range Min (V) 4.5 Vcc Range Max (V) 5.5 Output Open-Drain Temp Range Min. (°C) -40 Temp Range Max. (°C) +85 Nominal Reset Voltage (V) 4.25

TC32M Features

• Incorporates the Functionality of the Industry Standard TC1232 (Processor Monitor, Watchdog and Manual
Override RESET Controller) into a Small, Lower Cost Package
• Guards Against Unstable Processor Operation Resulting from Power "Brown-Out"
• Automatically Halts and Restarts an Out-of- Control Microprocessor
• Output can be Wire-ORed, or Hooked to Manual RESET Push-button Switch
• Space-Saving 3-Pin TO-92 or SOT-223 Package

TC32M Typical Application

• All Microprocessor-Based Systems
• Battery Powered Computers and Controllers
• Automotive Systems
• Intelligent Instruments
• Critical Processor Monitoring
• Embedded Controllers

TC32M Connection Diagram

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