PT7M1818 Datasheet, PDF (3/6 Pages) Pericom Semiconductor Corporation – Supervisory Circuit

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AC Electrical Characteristics
Fig 1. Timing diagram
VCC ^VRST
1V
0V
t_RS
RST
1V
0V
Uncertain state
Fig 2. Timing diagram
t_SEN
t_RPD
t_RS
PT7M1818/1813
Supervisory Circuit
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V_RST
VCC
1V
0V
t_RS
RST 0.8VCC
1V
0.8V
0V
Uncertain state
t_PD
t_RS
External pull down
signal release
(V_CC = 1.0V to 5.5V, T_A= -40~85ºC, unless otherwise noted. Typical values are at T_A = +25ºC)
Sym.
Description
Test Conditions
Min
Typ
Max
Unit
t_RS Reset Timeout Period
-
t_RPD Delay
-
t_SEN Sensitivity
-
140
200
280
ms
-
17
-
s
20
-
-
s
t_PD External Pull Down Signal Pulse _{RST pin}
1
-
-
s
Pushbutton Detect^*
RST pin
0.8
1.5
2.0
V
*Note: RST will be asserted when it is pull down to the typical value or less.
2014-08-0010
PT0190-7
09/11/14
3