BR31P PulseCore Semiconductor, BR31P Datasheet - Page 2

• Manufacturer Part Number: BR31P
• Description: 5-pin ?p Voltage Supervisor With Manual Reset
• Manufacturer: PulseCore Semiconductor

January 2007
rev 0.1
Pin Diagram
Pin Description
Block Diagram
PCS811
1
2
3
4
5
-
VCC
GND
Pin#
PCS812
1
2
3
4
5
-
R2
R1
Pin Name
RESET
RESET
GND
VCC
MR
NC
5-Pin
Notice: The information in this document is subject to change without notice.
Bandgap
RESET (RESET)
µP Voltage Supervisor with Manual Reset
Ground.
No Connection
RESET is asserted LOW if V
140ms (T
as long as the manual reset (MR) is low.
RESET is asserted HIGH if V
140ms (T
as long as the manual reset (MR) is low.
Manual Reset Input. A logic LOW on MR asserts reset. Reset remains active as
long as MR is LOW and for at least 180ms (T
active low input has an internal 20kΩ pull-up resistor. The input should be left
open if not used. It can be driven by TTL or CMOS logic or shorted to ground by a
switch.
Power supply input voltage (3.0V, 3.3V, 5.0V)
GND
NC
RST
RST
1
3
2
) once V
) once V
(PCS812)
PCS811
CC
CC
exceeds the Threshold. In addition, RESET is active LOW
exceeds the threshold. In addition, RESET is active HIGH
RESET Generator
5
4
CC
CC
VCC
MR
falls below V
falls below V
Description
TH
TH
MRST
. RESET remains LOW for atleast
. RESET remains HIGH for atleast
) once MR returns HIGH. The
PCS811/PCS812
R
20K
PULL_UP
2 of 8
RESET (RESET)
MR