RNA51957A Datasheet, PDF (2/13 Pages) Renesas Technology Corp – Voltage Detecting, System Resetting IC Series

RNA51957A,B
Pin Arrangement
RNA51957AFP/BFP
NC 1
8 NC
Input 2
7 Power-supply
NC 3
6 Output
GND 4
(Top view)
5 Delay capacitor
NC: No Connection
Outline: PRSP0008DE-C
Block Diagram
Input
RNA51957A, B
Power-
supply
A: Built-in Load
B: Open Collector
5µA
Typ
–
+
1.25V
25µA
Typ
–
Output
GND Delay capacitor
Operating Waveform
1.25V
RNA51957A, B
t
H
td
td
L
td ≈ 0.34 × Cd(pF) µs
t
REJ03D0912-0100 Rev.1.00 Oct 10, 2008
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