EM MICROELECTRONIC EM6325 User Manual

查询EM6325AX-1.3供应商

EM MICROELECTRONIC - MARIN SA

Reset Circuit with Manual Reset

Description

The EM6325 is an ultra-low current reset circuit available in a
large variety of configurations and very small packages for
maximum flexibility in all end-applications up to 125°C and
using power supplies between 1.5V and 5.5V.
This circuit monitors the supply voltage of any electronic
system, and generates the appropriate reset signal after a
fixed reset timeout period. The threshold defines the
minimum allowed voltage which guarantees the good
functionality of the system. When VDD rises above VTH, the
output remains active for an additional delay time. This
allows the system to stabilize before getting fully active.
This circuit features a Manual Reset: an input that asserts

reset when pulled low (MR with internal pull-up).
Small SC70-4L, SC70-5L and SOT23-5L packages as well
as ultra-low supply current of 2.9μA make the EM6325 an
ideal choice for portable and battery-operated devices.

Typical Application

V

DD

V

DD

RESET

EM6325

RESET

MR

GND

GND

R

for open-drain version only

*

EXT

Block Diagram

V

DD

Voltage

Reference

MR

GND

Filter

Pin Description

Pin

SOT23-5L / SC70-5L SC70-4L

1 2

2 1 GND Ground

3 2 RESET

4 3

5 4 VDD Supply Voltage (5.5V max.)

*

+

-

Name Function

RESET

MR

V

DD

RESET

MPU, DSP

RESET

GND

Oscillator

Reset
Logic

Active-low

then goes high after all reset conditions are deasserted or after

to high

Active-high RESET output. RESET remains high for the reset timeout period and

then goes low after all reset conditions are deasserted or after
high
Manual Reset input with an internal pull-up 15k

long as
CMOS output or shorted to ground with a switch

RESET

RESET

RESET output. RESET remains low for the reset timeout period and

MR is low and for t

EM6325

Features

 Manual reset function

 200ms reset timeout period (1.6ms, 25ms, 1600ms on

request)

 Ultra-low supply current of 2.9μA (V

 Operating temperature range: -40°C to +125°C

 ±1.5% reset threshold accuracy

 11 reset threshold voltages V

TH

2.93V, 2.63V, 2.2V, 1.8V, 1.66V, 1.57V, 1.38V, 1.31V

 3 reset output options:

Active-low

Active-low

Active-high

 Immune to short negative V

RESET push-pull

RESET open-drain

RESET push-pull

transients

DD

 Guaranteed Reset valid down to 0.9V

 Threshold hysteresis: 2.1% of V

 Very small SOT23-5L, SC70-5L and SC70-4L

Applications

 Computers

 Servers and workstations

 Modems

 Wireless communication

 Metering

 Playstations

 PDA , Webpad
 Automotive systems

Pin Configuration (top view)

RESET

GND

RESET

push-pull

1

2

3

push-pull / open-drain

SOT23-5 / SC70-5

top view

after MR returns high. MR can be driven with a

POR

V

5

DD

GND

MR

RESET

(RESET)

4

Ω resistor. Reset remains active as

=3.3V)

DD

: 4.63V, 4.4V, 3.08V,

TH

1

2

SC70-4

top view

MR goes from low

MR

V

4

DD

MR

3

goes from low to

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R

[

]

p

g

g

g

p

p

p

Ordering Information

EM6325 -

EM6325

+C X SP5B 2.9

Delay (t
C = 200ms

A = 1.6ms D = 1600ms

Reset Output Type:

X = Active-low /RES push-pull 1.3 = 1.31V 2.6 = 2.63V
Active-high RES push-pull 1.4 = 1.38V 2.9 = 2.93V
Y = Active-low /RES o
Active-hi
Z = Active-hi

Packa

SP5B = SOT23-5, Ta
SC5B = SC70-5, Ta
SC4B = SC70-4, Ta

):

PO

h RES push-pull 1.7 = 1.66V 4.4 = 4.40V

h RES push-pull 1.8 = 1.80V 4.6 = 4.63V

e:

B = 25ms + = lead-free/green mold compliant

en-drain 1.6 = 1.57V 3.1 = 3.08V

e&Reel 3000 pcs
e&Reel 3000 pcs
e&Reel 3000 pcs

RoHS Compliance:

blank

= leaded

Reset Threshold Voltage (V

2.2 = 2.20V

):

TH

Top Marking

Package top marking below is for most parts in leaded package (first letter is “A”). For lead-free/green mold (RoHS) parts,
the first letter of top marking begins with letter “B” instead of letter “A”. The underscore "_ _" refers to the four-letter code for
the package (eg. SP5B, SC4B, …).

Part Number

EM6325AX__-1.3 ANAA EM6325BX__-1.3 ANBA EM6325CX__-1.3 ANCA EM6325DX__-1.3 ANDA
EM6325AX__-1.4 ANAB EM6325BX__-1.4 ANBB EM6325CX__-1.4 ANCB EM6325DX__-1.4 ANDB
EM6325AX__-1.6 ANAC EM6325BX__-1.6 ANBC EM6325CX__-1.6 ANCC EM6325DX__-1.6 ANDC
EM6325AX__-1.7 ANAD EM6325BX__-1.7 ANBD EM6325CX__-1.7 ANCD EM6325DX__-1.7 ANDD
EM6325AX__-1.8 ANAE EM6325BX__-1.8 ANBE EM6325CX__-1.8 ANCE EM6325DX__-1.8 ANDE
EM6325AX__-2.2 ANAF EM6325BX__-2.2 ANBF EM6325CX__-2.2 ANCF EM6325DX__-2.2 ANDF
EM6325AX__-2.6 ANAG EM6325BX__-2.6 ANBG EM6325CX__-2.6 ANCG EM6325DX__-2.6 ANDG
EM6325AX__-2.9 ANAH EM6325BX__-2.9 ANBH EM6325CX__-2.9 ANCH EM6325DX__-2.9 ANDH
EM6325AX__-3.1 ANAJ EM6325BX__-3.1 ANBJ EM6325CX__-3.1 ANCJ EM6325DX__-3.1 ANDJ
EM6325AX__-4.4 ANAK EM6325BX__-4.4 ANBK EM6325CX__-4.4 ANCK EM6325DX__-4.4 ANDK
EM6325AX__-4.6 ANAL EM6325BX__-4.6 ANBL EM6325CX__-4.6 ANCL EM6325DX__-4.6 ANDL
EM6325AY__-1.3 ANAM EM6325BY__-1.3 ANBM EM6325CY__-1.3 ANCM EM6325DY__-1.3 ANDM
EM6325AY__-1.4 ANAN EM6325BY__-1.4 ANBN EM6325CY__-1.4 ANCN EM6325DY__-1.4 ANDN
EM6325AY__-1.6 ANAP EM6325BY__-1.6 ANBP EM6325CY__-1.6 ANCP EM6325DY__-1.6 ANDP
EM6325AY__-1.7 ANAQ EM6325BY__-1.7 ANBQ EM6325CY__-1.7 ANCQ EM6325DY__-1.7 ANDQ
EM6325AY__-1.8 ANAR EM6325BY__-1.8 ANBR EM6325CY__-1.8 ANCR EM6325DY__-1.8 ANDR
EM6325AY__-2.2 ANAS EM6325BY__-2.2 ANBS EM6325CY__-2.2 ANCS EM6325DY__-2.2 ANDS
EM6325AY__-2.6 ANAT EM6325BY__-2.6 ANBT EM6325CY__-2.6 ANCT EM6325DY__-2.6 ANDT
EM6325AY__-2.9 ANAU EM6325BY__-2.9 ANBU EM6325CY__-2.9 ANCU EM6325DY__-2.9 ANDU
EM6325AY__-3.1 ANAV EM6325BY__-3.1 ANBV EM6325CY__-3.1 ANCV EM6325DY__-3.1 ANDV
EM6325AY__-4.4 ANAW EM6325BY__-4.4 ANBW EM6325CY__-4.4 ANCW EM6325DY__-4.4 ANDW
EM6325AY__-4.6 ANAX EM6325BY__-4.6 ANBX EM6325CY__-4.6 ANCX EM6325DY__-4.6 ANDX

Top

Marking

Part Number

Top

Marking

Part Number

Top

Marking

Part Number

Top

Marking

Standard Versions, Samples

Sample stock is generally held on standard versions (below) only. Non standard versions have a 30,000 pieces minimum

order quantity. Please contact factory for other versions not shown here and for availability of non standard versions.

EM6325AXSC4B-2.9

EM6325CXSC5B-2.9

EM6325CXSP5B-1.3

EM6325CXSP5B-2.6

EM6325CXSP5B-2.9

EM6325CXSP5B-3.1

EM6325CYSP5B-2.9

EM6325CYSP5B-4.6

EM6325DXSC4B-2.6

EM6325CXSP5B-4.6

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n

Absolute Maximum Ratings

Parameter Symbol Conditions

Voltage at VDD to GND VDD -0.3V to +6V
Minimum voltage at any signal pin V
Maximum voltage at any signal pi
Electrostatic discharge max. to
MIL-STD-883C method 3015.7
with ref. to V
Max. soldering conditions T
Storage Temperature Range T

Stresses above these listed maximum ratings may
cause permanent damages to the device. Exposure
beyond specified operating conditions may affect device
reliability or cause malfunction.

Handling Procedures

This device has built-in protection against high static

GND - 0.3V

MIN

V

VDD + 0.3V

MAX

V

2000V

SS

ESD

250°C x 10s

MAX

-65°C to +150°C

STG

voltages or electric fields; however, anti-static
precautions must be taken as for any other CMOS
component. Unless otherwise specified, proper
operation can only occur when all terminal voltages are
kept within the voltage range. Unused inputs must
always be tied to a defined logic voltage level.

Operating Conditions

Parameter Symbol Min Max Unit

Supply voltage VDD 0.9 5.5 V
Operating Temperature TA -40 +125 °C

EM6325

Electrical Characteristics

Unless otherwise specified: VDD= 0.9V to 5.5V, T

Parameter Symbol Conditions Min Typ Max Unit

Supply current (note 2) IDD

Threshold voltage
(note 3)

Threshold hysteresis V

V

TH

T

HYS

Note 1: Production tested at +25°C only. Over temperature limits are guaranteed by design, not production tested.
Note 3: Threshold voltage is specified for V

=-40°C to +125°C (note 1).

A

VDD=1.5V

VDD=3.3V

=5.0V

V

DD

+25°C - 4.6

-40°C to +125°C ­+25°C - 5.5

-40°C to +125°C ­+25°C - 6.3

-40°C to +125°C ­+25°C 1.290 1.330

EM6325 – 1.3

-40°C to +85°C 1.245 1.382

-40°C to +125°C 1.221
+25°C 1.359 1.401

EM6325 – 1.4

-40°C to +85°C 1.311 1.456

-40°C to +125°C 1.286
+25°C 1.546 1.594

EM6325 – 1.6

-40°C to +85°C 1.492 1.656

-40°C to +125°C 1.463
+25°C 1.635 1.685

EM6325 – 1.7

-40°C to +85°C 1.577 1.751

-40°C to +125°C 1.547
+25°C 1.773 1.827

EM6325 – 1.8

-40°C to +85°C 1.710 1.899

-40°C to +125°C 1.678
+25°C 2.167 2.233

EM6325 – 2.2

-40°C to +85°C 2.090 2.321

-40°C to +125°C 2.050
+25°C 2.591 2.669

EM6325 – 2.6

-40°C to +85°C 2.499 2.775

-40°C to +125°C 2.451
+25°C 2.886 2.974

EM6325 – 2.9

-40°C to +85°C 2.784 3.091

-40°C to +125°C 2.731
+25°C 3.034 3.126

EM6325 – 3.1

-40°C to +85°C 2.926 3.249

-40°C to +125°C 2.871
+25°C 4.334 4.466

EM6325 – 4.4

-40°C to +85°C 4.180 4.642

-40°C to +125°C 4.101
+25°C 4.561 4.699

EM6325 – 4.6

-40°C to +85°C 4.399 4.885

-40°C to +125°C 4.315

=+25°C -

A

falling.

DD

1.31

1.38

1.57

1.66

1.80

2.20

2.63

2.93

3.08

4.40

4.63

2.1%

2.3

2.9

3.4

•V

7

8.3

μA

9.6

1.387

1.461

1.663

1.758

1.906

V

2.330

2.785

3.103

3.262

4.660

4.903

- V

TH

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