EM6353BX2SP3B-4.6

Manufacturer Part NumberEM6353BX2SP3B-4.6
ManufacturerEM Microelectronic
EM6353BX2SP3B-4.6 datasheet
 
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EM MICROELECTRONIC
Reset Circuit with Fixed Delay
Description
The EM6353 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 V
output remains active for an additional delay time. This
allows the system to stabilize before getting fully active.
The EM6353 features three output types: active-low push-
pull, active-low open-drain and active-high push-pull.
Small SC70-5L and SOT23-3L packages as well as ultra-low
supply current of 2.9µA make the EM6353 an ideal choice
for portable and battery-operated devices.
Typical Application
V
DD
*
V
DD
RESET
EM6353
GND
GND
*
R
for open-drain version only
EXT
Pin Configuration
(top view)
RESET
GND
1
(RESET)
3
V
DD
RESET
2
V
(RESET)
SOT23-3L
"beta" bonding
RESET
NC
1
5
GND
(RESET)
V
2
DD
RESET
3
4
NC
GND
(RESET)
SC70-5L
(compatible with SC70-3 by rotating 180°)
Pin Description
Pin
SOT23-3L
SOT23-3L
SC70-5L
“beta”
“alpha”
1
3
4
2
1
5
3
2
2
-
-
1,3
Copyright © 2007, EM Microelectronic-Marin SA
05/07 – rev.M
- MARIN SA
Features
rises above V
, the
DD
TH
V
DD
Applications
RESET
MPU, DSP
GND
1
3 GND
Block Diagram
2
DD
V
DD
SOT23-3L
"alpha" bonding
3
NC
4
2 V
DD
5
1
NC
GND
Name
GND
Ground
Active-low RESET output. RESET remains low for the reset timeout period
RESET
after all reset conditions are deasserted and then goes high.
Active-high RESET output. RESET remains high for the reset timeout period
RESET
after all reset conditions are deasserted and then goes low.
V
Supply Voltage (5.5V max.)
DD
N.C.
Not connected. Not internally connected.
1
EM6353
200ms reset timeout period (25ms on request)
Ultra-low supply current of 2.9µA (V
DD
Operating temperature range: -40°C to +125°C
±1.5% reset threshold accuracy
11 reset threshold voltages V
: 4.63V, 4.4V, 3.08V,
TH
2.93V, 2.63V, 2.2V, 1.8V, 1.66V, 1.57V, 1.38V, 1.31V
3 reset output options:
Active-low
push-pull
RESET
Active-low
open-drain
RESET
Active-high
push-pull
RESET
No external components
Immune to short negative V
transients
DD
Guaranteed Reset valid down to 0.8V
Threshold hysteresis: 2.1% of V
TH
Very small SOT23-3L and SC70-5L packages
Mobile phones
Set-top boxes
Video, digital cameras, DVD players and recorders
Modems
Personal computers
Switching hubs
Copiers and fax
Utility meters
+
Voltage
-
Reference
Function
www.emmicroelectronic.com
=3.3V)
Oscillator
RESET
Reset
Logic
RESET

EM6353BX2SP3B-4.6 Summary of contents