ZUSBOPTSC01ZAC datasheet(287/402 Pages) ZILOG

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PS024604-1005

P R E L I M I N A R Y

On-Chip Peripheral AC and DC Electrical

Z8FMC16100 Series Flash MCU

Product Specification

265

On-Chip Peripheral AC and DC Electrical Characteristics

Table 141 provides electrical characteristics and timing information for the POR and VBO

circuits.

Table 141. POR and VBO Electrical Characteristics and Timing

Symbol

Parameter

TA = –40ºC to 105ºC

Units Conditions

Minimum

Typical1

Maximum

VPOR

Power-on reset

voltage threshold

2.20

2.45

2.70

VDD = VPOR.

VVBO

Voltage Brown-Out

reset voltage threshold

2.15

2.40

2.65

VDD = VVBO.

VPOR–VVBO

Starting VDD voltage to

ensure valid Power-On

Reset.

—VSS

—V

TANA

Power-On Reset

analog delay

—50—

VDD > VPOR; TPOR

Digital Reset delay

follows TANA.

TPOR

Power-On Reset digital

delay

—

5.0

—

50 WDT Oscillator

cycles (10KHz) + 16

System Clock cycles

(20MHz).

TVBO

Voltage Brown-Out

pulse rejection period

—10—

VDD < VVBO to generate

a Reset.

TRAMP

Time for VDD to

transition from VSS to

VPOR to ensure valid

Reset

0.10

—

100

ICC

Supply current

500

µA

VDD = 3.3V.

Notes:

1. Data in the typical column is from characterization at 3.3V and 250C. These values are provided for design guid-

ance only and are not tested in production.

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