MAC7101CAF50 View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MAC7101CAF50

Microcontroller Family Hardware Specifications

Freescale Semiconductor 

Electrical Characteristics

3.7.5 Chip Power Up and Voltage Drops

The VREG sub-modules LVI (low voltage interrupt), POR (power on reset) and LVR (low voltage reset)

handle chip power-up or drops of the supply voltage. Refer to Figure 2.

Voltage

VLVID

VLVIA

VDDA

VLVRD

VLVRA

VPORD

VDD2.5

LVI Disabled Time

LVI

LVI Enabled

due to LVR

POR

LVR

Note: Not to scale.

Figure 2. VREG Chip Power-up and Voltage Monitoring

3.7.6 Output Loads

The on-chip voltage regulator is intended to supply the internal logic and oscillator circuits. No external

DC load is allowed. Capacitive loads are specified in Table 18. Capacitors with X7R dielectricum are

required.

Table 18. VREG Recommended Load Capacitances

Rating

Symbol

Min

Typ

Max

Unit

Load Capacitance per VDD2.5 pin 1

CLVDD

200

220

12000

nF

Load Capacitance on VDDPLL pin

CLVDDfcPLL

90

220

5000

nF

NOTES:

1. Refer to Table 38 for the specific number of VDD2.5 pins on various packages. Each VDD2.5 pin should have the

recommended loading as described in Section 3.7.3, “Circuit Board Layout,” of the MAC7100 Microcontroller Family

Reference Manual (MAC7100RM).

MAC7100 Microcontroller Family Hardware Specifications, Rev. 1.2

14

Preliminary

Freescale Semiconductor

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