Integrated Circuits (ICs)

BQ4845P-A4

Obsolete

Texas Instruments

IC RTC CLK/CALENDAR PAR 28DIP

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Integrated Circuits (ICs)

BQ4845P-A4

Obsolete

Texas Instruments

IC RTC CLK/CALENDAR PAR 28DIP

Deep-Dive with AI

DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	BQ4845P-A4

Current - Timekeeping (Max)	1.5 mA
Features	Alarm, Watchdog Timer, Supervisor, Leap Year, Daylight Savings
Interface	Parallel
Mounting Type	Through Hole
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	28-DIP
Package / Case	0.6 in
Package / Case	15.24 mm
Supplier Device Package	28-PDIP
Time Format	HH:MM:SS (12/24 hr)
Type	Clock/Calendar
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.75 V
Voltage - Supply, Battery [Max]	4 V
Voltage - Supply, Battery [Min]	2.3 V

BQ4845 Series

Part	Voltage - Supply [Min]	Voltage - Supply [Max]	Interface	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply, Battery [Min]	Voltage - Supply, Battery [Max]	Time Format	Current - Timekeeping (Max)	Package / Case	Package / Case [x]	Package / Case [y]	Features	Type	Supplier Device Package	Mounting Type	Package / Case	Package / Case
Texas Instruments BQ4845YS-A4NTR	4.5 V	5.5 V	Parallel	85 °C	-40 °C	2.3 V	4 V	HH:MM:SS (12/24 hr)	1.5 mA	28-SOIC	0.295 in	7.5 mm	Alarm Daylight Savings Leap Year Supervisor Watchdog Timer	Clock/Calendar	28-SOIC	Surface Mount
Texas Instruments BQ4845S-A4TR	4.75 V	5.5 V	Parallel	70 °C	0 °C	2.3 V	4 V	HH:MM:SS (12/24 hr)	1.5 mA	28-SOIC	0.295 in	7.5 mm	Alarm Daylight Savings Leap Year Supervisor Watchdog Timer	Clock/Calendar	28-SOIC	Surface Mount
Texas Instruments BQ4845S-A4NTRG4	4.75 V	5.5 V	Parallel	85 °C	-40 °C	2.3 V	4 V	HH:MM:SS (12/24 hr)	1.5 mA	28-SOIC	0.295 in	7.5 mm	Alarm Daylight Savings Leap Year Supervisor Watchdog Timer	Clock/Calendar	28-SOIC	Surface Mount
Texas Instruments BQ4845S-A4G4	4.75 V	5.5 V	Parallel	70 °C	0 °C	2.3 V	4 V	HH:MM:SS (12/24 hr)	1.5 mA	28-SOIC	0.295 in	7.5 mm	Alarm Daylight Savings Leap Year Supervisor Watchdog Timer	Clock/Calendar	28-SOIC	Surface Mount
Texas Instruments BQ4845P-A4	4.75 V	5.5 V	Parallel	70 °C	0 °C	2.3 V	4 V	HH:MM:SS (12/24 hr)	1.5 mA	28-DIP			Alarm Daylight Savings Leap Year Supervisor Watchdog Timer	Clock/Calendar	28-PDIP	Through Hole	0.6 in	15.24 mm
Texas Instruments BQ4845S-A4	4.75 V	5.5 V	Parallel	70 °C	0 °C	2.3 V	4 V	HH:MM:SS (12/24 hr)	1.5 mA	28-SOIC	0.295 in	7.5 mm	Alarm Daylight Savings Leap Year Supervisor Watchdog Timer	Clock/Calendar	28-SOIC	Surface Mount
Texas Instruments BQ4845S-A4N	4.75 V	5.5 V	Parallel	85 °C	-40 °C	2.3 V	4 V	HH:MM:SS (12/24 hr)	1.5 mA	28-SOIC	0.295 in	7.5 mm	Alarm Daylight Savings Leap Year Supervisor Watchdog Timer	Clock/Calendar	28-SOIC	Surface Mount
Texas Instruments BQ4845YS-A4	4.5 V	5.5 V	Parallel	70 °C	0 °C	2.3 V	4 V	HH:MM:SS (12/24 hr)	1.5 mA	28-SOIC	0.295 in	7.5 mm	Alarm Daylight Savings Leap Year Supervisor Watchdog Timer	Clock/Calendar	28-SOIC	Surface Mount
Texas Instruments BQ4845YS-A4TR	4.5 V	5.5 V	Parallel	70 °C	0 °C	2.3 V	4 V	HH:MM:SS (12/24 hr)	1.5 mA	28-SOIC	0.295 in	7.5 mm	Alarm Daylight Savings Leap Year Supervisor Watchdog Timer	Clock/Calendar	28-SOIC	Surface Mount
Texas Instruments BQ4845YP-A4	4.5 V	5.5 V	Parallel	70 °C	0 °C	2.3 V	4 V	HH:MM:SS (12/24 hr)	1.5 mA	28-DIP			Alarm Daylight Savings Leap Year Supervisor Watchdog Timer	Clock/Calendar	28-PDIP	Through Hole	0.6 in	15.24 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Description

General part information

BQ4845 Series

Real Time Clock (RTC) IC Clock/Calendar Parallel 28-DIP (0.600", 15.24mm)

Documents

Technical documentation and resources