TC1270A MICROCHIP [Microchip Technology], TC1270A Datasheet - Page 14

• Manufacturer Part Number: TC1270A
• Description: Voltage Supervisor with Manual Reset Input
• Manufacturer: MICROCHIP [Microchip Technology]

TC1270A/70AN/71A
3.0
The descriptions of the pins are listed in
TABLE 3-1:
DS22035B-page 14
Note 1:
(Push-Pull,
active low)
TC1270A
—
—
5
4
PIN DESCRIPTIONS
—
—
1
2
The MR pin has an internal weak pull-up (18.5 kΩ typical).
(Open-Drain,
Pin Number
active low)
TC1270AN
PINOUT DESCRIPTION
—
—
4
active high)
(Push-Pull,
—
—
TC1271A
5
4
Table
—
—
1
2
3-1.
Sym
RST
RST
RST
V
SS
Type
—
O
O
O
Pin
Buffer
Driver
Power Ground
Open-
Push-
Push-
Drain
Pull
Pull
/
Standard Function
Reset output (Push Pull), active low
H = V
L = V
Goes active (Low) if one of these conditions
occurs:
1.
2.
3.
Reset output (Open-Drain), active low
Float = V
L = V
Goes active (Low) if one of these conditions
occurs:
1.
2.
3.
Reset output (Push Pull), active high
H = V
L = V
Goes active (High) if one of these conditions
occurs:
1.
2.
3.
(after Reset Timer Delay completes)
(after Reset Timer Delay completes)
(after Reset Timer Delay completes)
If V
voltage threshold.
If the MR pin is forced low.
During power-up.
If V
voltage threshold.
If the MR pin is forced low.
During power-up.
If V
voltage threshold.
If the MR pin is forced low.
During power-up.
DD
DD
DD
DD
DD
DD
DD
DD
< V
< V
> V
> V
< V
DD
falls below the selected Reset
falls below the selected Reset
falls below the selected Reset
TRIP
TRIP
TRIP
TRIP
> V
TRIP
, Reset pin is active
TRIP
, Reset pin is active
, Reset pin is inactive
, Reset pin is inactive
, Reset pin is active
© 2007 Microchip Technology Inc.
, Reset pin is inactive