HD64F7058BP80K datasheet(3/1130 Pages) RENESAS

Part #	HD64F7058BP80K

Description	Renesas SuperHTM RISC engine

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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General Precautions on Handling of Product

1. Treatment of NC Pins

Note: Do not connect anything to the NC pins.The NC (not connected) pins are either not

connected to any of the internal circuitry or are they are used as test pins or to reduce noise.

If something is connected to the NC pins, the operation of the LSI is not guaranteed.

2. Treatment of Unused Input Pins

Note: Fix all unused input pins to high or low level.Generally, the input pins of CMOS products

are high-impedance input pins. If unused pins are in their open states, intermediate levels

are induced by noise in the vicinity, a pass-through current flows internally, and a

malfunction may occur.

3. Processing before Initialization

Note: When power is first supplied, the product’s state is undefined.The states of internal circuits

are undefined until full power is supplied throughout the chip and a low level is input on the

reset pin. During the period where the states are undefined, the register settings and the

output state of each pin are also undefined. Design your system so that it does not

malfunction because of processing while it is in this undefined state. For those products

which have a reset function, reset the LSI immediately after the power supply has been

turned on.

4. Prohibition of Access to Undefined or Reserved Addresses

Note: Access to undefined or reserved addresses is prohibited. The undefined or reserved

addresses may be used to expand functions, or test registers may have been be allocated to

these addresses. Do not access these registers; the system’s operation is not guaranteed if

they are accessed.

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