XC161CS-32F datasheet(72/87 Pages) INFINEON

tên linh kiện	XC161CS-32F

Giải thích chi tiết về linh kiện	16-Bit Single-Chip Microcontroller with C166SV2 Core

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XC161CS-32F

Derivatives

Electrical Parameters

Data Sheet

V1.2, 2006-08

4.4.3

External Clock Drive XTAL1

Figure 16

External Clock Drive XTAL1

Note: If the on-chip oscillator is used together with a crystal or a ceramic resonator, the

oscillator frequency is limited to a range of 4 MHz to 16 MHz.

It is strongly recommended to measure the oscillation allowance (negative

resistance) in the final target system (layout) to determine the optimum

parameters for the oscillator operation. Please refer to the limits specified by the

crystal supplier.

When driven by an external clock signal it will accept the specified frequency

range. Operation at lower input frequencies is possible but is verified by design

only (not subject to production test).

Table 19

External Clock Drive Characteristics

(Operating Conditions apply)

Parameter

Symbol

Limit Values

Unit

Min.

Max.

Oscillator period

OSC

2501)

1) The maximum limit is only relevant for PLL operation to ensure the minimum input frequency for the PLL.

High time2)

2) The clock input signal must reach the defined levels

VILC and VIHC.

6–ns

Low time2)

6–ns

Rise time2)

–8ns

Fall time2)

–8ns

MCT05572

OSC

0.5

DDI

ILC

IHC

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