MIC1232 Micrel Semiconductor, MIC1232 Datasheet - Page 3

• Manufacturer Part Number: MIC1232
• Description: P Supervisory Circuit
• Manufacturer: Micrel Semiconductor

Parameter
PBRST Min. Pulse Width, t PB
PBRST Delay, t PBD
Reset Active Time, t RST
ST Pulse Width, t ST
ST Timeout Period, t TD
V CC Fall Time, t F
V CC Rise Time, t R
V CC Detect to RST Low
and RST High, t RPD
V CC Detect to RST Open
and RST Low, t RPU
A.C. Electrical Characteristics
V CC = 4.5V to 5.5V, T
Note 1: I CC is measured with outputs open and inputs within 0.5V of supply rails.
Note 2: PBRST has an internal pull-up resistor to V CC (typ. 40k ).
Note 3: Guaranteed by design.
Note 4: PBRST must be held low for a minimum of 20ms to guarantee a reset.
Note 5: V CC falling at 1.66mv/ s.
Note 6: RST has an open drain output.
A
= Operating Temperature Range, unless otherwise noted.
Conditions
PBRST = V IL (see note 4)
TD = 0V
TD = Open
TD = V CC
V CC Falling (see note 5)
V CC Rising (see note 6)
MIC1232 P Supervisory Circuit
62.5
Min
250
250
500
250
20
20
10
1
0
1200
Typ
610
150
600
610
50
4
1000
1000
2000
1000
Max
250
150
20
Units
ms
ms
ms
ms
ms
ns
ns
s
s
3