TC1270A MICROCHIP [Microchip Technology], TC1270A Datasheet - Page 15

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

TABLE 3-1:
© 2007 Microchip Technology Inc.
Note 1:
(Push-Pull,
active low)
TC1270A
3
2
1
—
3
4
The MR pin has an internal weak pull-up (18.5 kΩ typical).
(Open-Drain,
Pin Number
active low)
TC1270AN
PINOUT DESCRIPTION (CONTINUED)
—
—
—
active high)
(Push-Pull,
TC1271A
3
2
1
—
3
4
Sym
V
MR
NC
DD
Type
—
—
I
Pin
Buffer
Driver
Power Supply Voltage
ST
—
/
(1)
TC1270A/70AN/71A
Standard Function
Manual Reset input pin
This input allows a push button switch to be
directly connected to the
TC1270A/70AN/71A’s MR pin, which can then
be used to force a system Reset. The input fil-
ter (ignores) noise pulses that occur on the
MR pin.
H = Switch is open (internal pull-up resistor
L = Switch is depressed (shorted to ground).
No Connection
pulls signal high). State of the RST/RST
pin determined by other system condi-
tions.
This forces the RST/RST pin Active.
DS22035B-page 15