R
EM MICROELECTRONIC -
MARIN SA
V6340
Ultra Low Cost 3-Pin Microprocessor Reset
Description
The V6340 monitors the supply voltage of any electronic
system, and generates the appropriate Reset signal. The
threshold must be chosen to the minimum allowed voltage
which guarantees the good functionality of the system. As
long as V
DD
stays upside this voltage level, the output stays
inactive. If V
DD
drops below V
TH
, the output gets active.
The threshold voltage may be obtained in different versions:
2.6V, 3.0V, 3.7V and 4.4V.
Applications
Applications needing a voltage detection:
!
Computer electronics
!
White / Brown goods
!
Automotive electronics
!
Industrial electronics
!
Telecom systems
!
Hand-held systems
Features
!
SOT-23 and TO-92 package
!
Reset output state guaranteed down to V
DD
= 1V @
25°C
!
Low supply current: stays stable during switching
versions B, N, N:
typ. 19µA at V
DD
= 5V
other versions:
typ. 38µA at V
DD
= 5V
!
±2.5% voltage threshold accuracy
!
High noise immunity
!
No external components required
!
Push-pull or Open drain output
!
Pin compatible with MAX 809 in SOT-23, by appropriate
layout on PCB
!
Pin compatible with MC 33164 in TO-92
!
TTL output compatibility
Typical Operating Configuration
V
DD
Pin Assignment
TO-92
View
Flat Front
SOT23-3L
V
SS
V6340
3
3
1
V
DD
V6340
V
SS
RES
or
RES
Micro-
processor
1
2
V6340
2
RES or
RES
V
DD
GND
RES V
DD
V
SS
or
RES
Fig. 2
Fig. 1
Copyright © 2005, EM Microelectronic-Marin SA
03/06 – rev.K
1
www.emmicroelectronic.com
EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
