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RNA51944A_15 Datasheet, PDF (1/8 Pages) Renesas Technology Corp – Voltage Detecting, System Resetting IC Series
Preliminary Datasheet
RNA51944A, B
Voltage Detecting, System Resetting IC Series
R03DS0025EJ0400
Rev.4.00
Jul 03, 2012
Description
RNA51944A,B are semiconductor integrated circuits designed for detecting supply voltage and resetting all types of
logic circuits such as CPUs.
They fined extensive applications, including battery checking circuit, level detecting circuit and waveform shaping
circuit.
Features
 Few external parts
 Wide supply voltage range: 2 V to 17 V
 Wide application range
 Ordering Information
Part Name
Package Type Package Code
RNA51944AUPH1
RNA51944BUPH1
UPAK
UPAK
PLZZ0004CA-A
PLZZ0004CA-A
Package
Abbreviation
UP
UP
Taping Abbreviation
(Quantity)
H (1,000 pcs / Reel)
H (1,000 pcs / Reel)
Surface
Treatment
1 (Sn-Bi)
1 (Sn-Bi)
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
Outline and Article Indication
• RNA51944A, B
44A
44B
Part No.
UPAK
Y MW
Y MW
W: Week Code
M: Month Code
Y: Year Code
R03DS0025EJ0400 Rev.4.00
Jul 03, 2012
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