RNA51953A_10 Datasheet, PDF (1/11 Pages) Renesas Technology Corp – Voltage Detecting, System Resetting IC Series

Preliminary Datasheet
RNA51953A, B
Voltage Detecting, System Resetting IC Series
REJ03D0911-0402
Rev.4.02
Apr 01, 2010
Description
RNA51953A,B are semiconductor integrated circuits designed for detecting supply voltage and resetting all types of
logic circuits such as CPUs.
They include a built-in delay circuit to provide the desired retardation time simply by adding an external capacitor.
They fined extensive applications, including battery checking circuit, level detecting circuit and waveform shaping
circuit.
Features
 Few external parts
 Large delay time with a capacitor of small capacitance (td  100 ms, at 0.33 F)
 Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage):
0.6 V (Typ) at RL = 22 k
 Wide supply voltage range: 2 V to 17 V
 Wide application range
 Ordering Information
Part Name
Package Type
Package Code
Package Taping Abbreviation
Abbreviation
(Quantity)
RNA51953AFPH0
SOP-8 pin
PRSP0008DE-C
FP
H (2,500 pcs / Reel)
RNA51953APT0
DIP-8 pin
PRDP0008AF-B
P
T (1,000 pcs / Reel)
RNA51953BFPH0
SOP-8 pin
PRSP0008DE-C
FP
H (2,500 pcs / Reel)
RNA51953BPT0
DIP-8 pin
PRDP0008AF-B
P
T (1,000 pcs / Reel)
Surface
Treatment
0 (Ni/Pd/Au)
0 (Ni/Pd/Au)
0 (Ni/Pd/Au)
0 (Ni/Pd/Au)
Application
 Reset circuit of Pch, Nch, CMOS, microcomputer, CPU and MCU, Reset of logic circuit, Battery check circuit,
switching circuit back-up voltage, level detecting circuit, waveform shaping circuit, delay waveform generating
circuit, DC/DC converter, over voltage protection circuit
Recommended Operating Condition
 Supply voltage range: 2 V to 17 V
REJ03D0911-0402 Rev.4.02
Apr 01, 2010
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