EM6620WS27 datasheet(49/56 Pages) EMMICRO

49 / 56 page

EM6620

www.emmicroelectronic.com

18. EM6620 Electrical specifications

18.1 Absolute maximum ratings

Min.

Max.

Units

Power supply VDD-VSS

- 0.2

+ 3.6

Input voltage

VSS - 0,2

VDD+0,2

Storage temperature

- 40

+ 125

°C

Electrostatic discharge to

Mil-Std-883C Method 3015.7 with ref. to VSS

-2000

+2000

Maximum soldering conditions

10s x 250

°C

Stresses above these listed maximum ratings may cause permanent damage to the device.

Exposure beyond specified electrical characteristics may affect device reliability or cause malfunction.

18.2 Handling Procedures

This device has built-in protection against high static voltages or electric fields; however, anti-static precautions

should be taken as for any other CMOS component.

Unless otherwise specified, proper operation can only occur when all terminal voltages are kept within the

supply voltage range.

18.3

Standard Operating Conditions

Parameter

MIN

TYP

MAX

Unit

Description

Temperature

-20

°C

VDD_Range1

1.4

3.0

3.6

with

internal voltage regulator

VDD_Range2

1.2

1.5

1.7

without internal voltage regulator

VSS

Reference terminal

CVDDCA (note 1)

100

regulated voltage capacitor

32768

nominal frequency

Rqs

kOhm

typical quartz serial resistance

8.2

typical quartz load capacitance

df/f

+/- 30

ppm

quartz frequency tolerance

Note 1: This capacitor filters switching noise from VDD to keep it away from the internal logic cells.

In noisy systems the capacitor should be chosen bigger than minimum value.

18.4 DC characteristics - Power Supply

Conditions: Vdd=1.5V, T=25°C, without internal voltage regulator (unless otherwise specified)

Parameter

Conditions

Symbol

Min.

Typ.

Max.

Unit

ACTIVE Supply Current

(note2,3)

IVDDa1

2.0

3.0

µA

(in active mode with LCD on)

-20 ... 85°C (note2,3)

IVDDa1

3.1

µA

STANDBY Supply Current

IVDDh1

0.4

0.6

µA

(in Halt mode, LCDOff)

-20 ... 85°C

IVDDh1

0.8

µA

SLEEP Supply Current

IVDDs1

0.1

0.25

µA

-20 ... 85°C

IVDDs1

0.28

µA

POR static level

-20 ... 85°C

VPOR1

0.85

1.1

RAM data retention

Vrd1

1.0

Note 2: Lcd Display NOT connected.

Note 3: For test reasons, the user has to provide a test loop with successive writing and reading of two

different addresses (5 instructions should be reserved for this measurement).

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