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PRODUCTS PRODUCTS INDEX
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 RESET ICs
ICS
CMOS System Reset IC built-in delay time circuit
Monolithic IC PST87XX, 88XX Series
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[Outline]
This IC is a system reset IC builtin delay time circuit.
PST87/88 is not required with an external capacitor, and then can use a small package.
Therefore a space of PC board can be small.

[Features]
1. Operating supply voltage
1.0-5.5V
2. Supply current
1µA typ.
3. Reset threshold range
1.6-4.6V
4. Reset threshold accuracy
±1.5%
5. Reset hysteresis
50mV typ.
6. Reset active timeout period
20/50/100/200ms
7. Output type
PST87 : CMOS output
PST88 : Open drain output
8. Manual RESET
PST87/88XA : NO
PST87/88XR : YES


[Packages]


[Applications]
1. Reset circuits for microcomputers, CPUs and MPUs
2. Reset circuits for logic circuits
3. Battery voltage check circuits
4. Back-up power supply switching circuits
5. Level detection circuits
6. Mechanical reset circuits


[Pin Assignment]

SSON-4B
(TOP VIEW)
0
1
GND
2
NC(*1 MR)
3
VDD
4
RESET
0
SOT-25A
(TOP VIEW)
0
1
NC(*1 MR)
2
GND
3
NC
4
RESET
5
VDD

SC-82
(TOP VIEW)
0
1
NC(*1 MR)
2
GND
3
RESET
4
VDD
0 For the products with MR (Manual reset)
function, *1 terminal is MR terminal.


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[NOTE]
-Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
-The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
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