SPC5705BECLLR datasheet(46/92 Pages) FREESCALE

46 / 92 page

MPC5607B Microcontroller Data Sheet, Rev. 3

Preliminary—Subject to Change Without Notice

Electrical characteristics

Freescale Semiconductor

Figure 13. Equivalent circuit of a quartz crystal

Table 32. Crystal motional characteristics1

1 The crystal used is Epson Toyocom MC306.

Symbol

Parameter

Conditions

Value

Unit

Min

Typ

Max

Motional inductance

—

11.796

—

Motional capacitance

—

C1/C2 Load capacitance at OSC32K_XTAL and

OSC32K_EXTAL with respect to ground2

2 This is the recommended range of load capacitance at OSC32K_XTAL and OSC32K_EXTAL with respect to

ground. It includes all the parasitics due to board traces, crystal and package.

—18

—

3 Maximum ESR (R

m) of the crystal is 50 kΩ

Motional resistance

AC coupled @ C0 = 2.85 pF4

4 C0 Includes a parasitic capacitance of 2.0 pF between OSC32K_XTAL and OSC32K_EXTAL pins

——

AC coupled @ C0 = 4.9 pF4

——

AC coupled @ C0 = 7.0 pF4

——

AC coupled @ C0 = 9.0 pF4

——

Crystal

SPC5705BECLLR 数据表(PDF) 46 Page - Freescale Semiconductor, Inc

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