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MEMORY存储芯片DS1302ZN+T&R中文规格书 - 图文

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BENEFITS AND FEATURES

?

Completely Manages All Timekeeping FunctionsoReal-Time Clock Counts Seconds,

Minutes, Hours, Date of the Month, Month,Day of the Week, and Year with Leap-YearCompensation Valid Up to 2100

o31 x 8 Battery-Backed General-Purpose

RAMSimple Serial Port Interfaces to MostMicrocontrollers

oSimple 3-Wire InterfaceoTTL-Compatible (VCC = 5V)

oSingle-Byte or Multiple-Byte (Burst Mode)

Data Transfer for Read or Write of Clock orRAM DataLow Power Operation Extends Battery BackupRun Time

o2.0V to 5.5V Full OperationoUses Less Than 300nA at 2.0V8-Pin DIP and 8-Pin SO Minimizes RequiredSpace

Optional Industrial Temperature Range: -40°Cto +85°C Supports Operation in a Wide Rangeof Applications

Underwriters Laboratories? (UL) Recognized

PIN CONFIGURATIONS

TOP VIEW VCC2 X1 X2 GND 1 8 VCC1 SCLK I/O CE 2 3 4 DS1302 7 6 5 ?

DIP (300 mils) VCC2 X1 X2 GND 1 2 3 4 DS1302 8 7 6 5 VCC1 SCLK I/O CE ?

SO (208 mils/150 mils) ??

?

ORDERING INFORMATION

PART

DS1302+ DS1302N+ DS1302S+ DS1302SN+ DS1302Z+ DS1302ZN+

TEMP RANGE 0°C to +70°C -40°C to +85°C0°C to +70°C -40°C to +85°C0°C to +70°C -40°C to +85°C

PIN-PACKAGE 8 PDIP (300 mils) 8 PDIP (300 mils) 8 SO (208 mils) 8 SO (208 mils) 8 SO (150 mils) 8 SO (150 mils)

TOP MARK* DS1302 DS1302 DS1302S DS1302S DS1302Z DS1302ZN

+Denotes a lead-free/RoHS-compliant package.

*An N anywhere on the top mark indicates an industrial temperature grade device. A + anywhere on the top mark indicates a lead-free device.

UL is a registered trademark of Underwriters Laboratories, Inc.

REV: 3/15

DS1302 Trickle-Charge Timekeeping Chip

ABSOLUTE MAXIMUM RATINGS

Voltage Range on Any Pin Relative to Ground……………………………………………………………….-0.5Vto +7.0V Operating Temperature Range, Commercial………………………………………………………………….0°C to +70°C Operating Temperature Range, Industrial (IND)……………………………………………………………-40°C to +85°C Storage Temperature Range……………………………………………………………………………..….-55°C to +125°C Soldering Temperature (leads, 10 seconds)………………………………………………………………..………….260°C Soldering Temperature (surface mount)………………………………………………..…….See IPC/JEDEC J-STD-020

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability.

RECOMMENDED DC OPERATING CONDITIONS

(TA = 0°C to +70°C or TA = -40°C to +85°C.) (Note 1)

PARAMETER

Supply Voltage VCC1, VCC2 Logic 1 Input Logic 0 Input

SYMBOL VCC1, VCC2 VIH VIL

VCC = 2.0V VCC = 5V

CONDITIONS (Notes 2, 10) (Note 2) (Note 2)

MIN 2.0 2.0 -0.3-0.3

TYP 3.3

MAX 5.5 VCC + 0.3 +0.3+0.8

UNITS V V V

DC ELECTRICAL CHARACTERISTICS

(TA = 0°C to +70°C or TA = -40°C to +85°C.) (Note 1)

PARAMETER

Input Leakage I/O Leakage

Logic 1 Output (IOH = -0.4mA) Logic 1 Output (IOH = -1.0mA) Logic 0 Output (IOL = 1.5mA) Logic 0 Output (IOL = 4.0mA) Active Supply Current (Oscillator Enabled) Timekeeping Current (Oscillator Enabled) Standby Current (Oscillator Disabled)

Active Supply Current (Oscillator Enabled) Timekeeping Current (Oscillator Enabled) Standby Current (Oscillator Disabled)

Trickle-Charge Resistors Trickle-Charge Diode Voltage Drop

ILI ILO VOH VOL ICC1A ICC1T ICC1S ICC2A ICC2T ICC2S R1 R2 R3 VTD

VCC = 2.0V VCC = 5V VCC = 2.0V VCC = 5V VCC1 = 2.0V VCC1 = 5V VCC1 = 2.0V VCC1 = 5V VCC1 = 2.0V VCC1 = 5V IND

VCC2 = 2.0V VCC2 = 5V VCC2 = 2.0V VCC2 = 5V VCC2 = 2.0V VCC2 = 5V

2 4 8 0.7

SYMBOL

CONDITIONS (Notes 5, 13) (Notes 5, 13) (Note 2) (Note 2) CH = 0

(Notes 4, 11) CH = 0

(Notes 3, 11,13) CH = 1

(Notes 9, 11, 13) CH = 0

(Notes 4, 12) CH = 0

(Notes 3, 12) CH = 1

(Notes 9, 12)

0.2 0.45 1 1 5

1.6 2.4

0.4 0.4 0.4 1.2 0.3 1 100 100 200 0.425 1.28 25.3 81 25 80

k?

MIN

TYP 85 85

MAX 500 500

UNITS μA μA V V mA μA nA mA μA μA

V

DS1302 Trickle-Charge Timekeeping Chip

CAPACITANCE

(TA = +25°C)

PARAMETER Input Capacitance I/O Capacitance

SYMBOL

CI CI/O

MIN

TYP 10 15

MAX

UNITS pF pF

AC ELECTRICAL CHARACTERISTICS

PARAMETER

Data to CLK Setup CLK to Data Hold CLK to Data Delay CLK Low Time CLK High Time CLK Frequency CLK Rise and Fall CE to CLK Setup CLK to CE Hold CE Inactive Time

CE to I/O High Impedance SCLK to I/O High Impedance

Note 1: Note 2: Note 3: Note 4: Note 5: Note 6: Note 7: Note 8: Note 9: Note 10: Note 11: Note 12: Note 13:

(TA = 0°C to +70°C or TA = -40°C to +85°C.) (Note 1)

SYMBOL VCC = 2.0V tDC

VCC = 5V VCC = 2.0V

tCDH

VCC = 5V VCC = 2.0V

tCDD

VCC = 5V VCC = 2.0V tCL

VCC = 5V VCC = 2.0V tCH

VCC = 5V VCC = 2.0V

tCLK

VCC = 5V VCC = 2.0V

tR, tF

VCC = 5V VCC = 2.0V tCC

VCC = 5V VCC = 2.0V

tCCH

VCC = 5V VCC = 2.0V

tCWH

VCC = 5V VCC = 2.0V

tCDZ

VCC = 5V VCC = 2.0V

tCCZ

VCC = 5V

CONDITIONS (Note 6) (Note 6) (Notes 6, 7, 8) (Note 6) (Note 6) (Note 6)

1000 250 1000 250 DC

0.5 2.0 2000 500

MIN 200 50 280 70

TYP

MAX

UNITS ns ns

800 200

ns ns ns MHz ns μs ns μs

280 70 280 70

ns ns

(Note 6) (Note 6) (Note 6) (Note 6) (Note 6)

4 1 240 60 4 1

Limits at -40°C are guaranteed by design and are not production tested. All voltages are referenced to ground.

ICC1T and ICC2T are specified with I/O open, CE and SCLK set to a logic 0.

ICC1A and ICC2A are specified with the I/O pin open, CE high, SCLK = 2MHz at VCC = 5V; SCLK = 500kHz, VCC = 2.0V. CE, SCLK, and I/O all have 40k? pulldown resistors to ground.

Measured at VIH = 2.0V or VIL = 0.8V and 10ns maximum rise and fall time. Measured at VOH = 2.4V or VOL = 0.4V. Load capacitance = 50pF.

ICC1S and ICC2S are specified with CE, I/O, and SCLK open.

VCC = VCC2, when VCC2 > VCC1 + 0.2V; VCC = VCC1, when VCC1 > VCC2. VCC2 = 0V. VCC1 = 0V.

Typical values are at +25°C.

DS1302 Trickle-Charge Timekeeping Chip

Figure 6. Timing Diagram: Read Data Transfer

CEtCCtRtFSCLKtCLtCDHtDCI/OREAD DATA BYTEtCHtCDDtCCZtCDZADDRESS/COMMAND BYTEFigure 7. Timing Diagram: Write Data Transfer

CEtCWHtCCtRtFtCCHSCLKtCDHI/OtDCtCLtCHADDRESS/COMMAND BYTEWRITE DATA BYTECHIP INFORMATION

TRANSISTOR COUNT: 11,500

THERMAL INFORMATION

PACKAGE 8 DIP

8 SO (150 mils)

THETA-JA (°C/W) 110 170

THETA-JC (°C/W) 40 40

PACKAGE TYPE 8 PDIP 8 SO (208 mils) 8 SO (150 mils) PACKAGE CODE — — — DOCUMENT NO. 21-004321-026221-0041DS1302 Trickle-Charge Timekeeping Chip

MEMORY存储芯片DS1302ZN+T&R中文规格书 - 图文

BENEFITSANDFEATURES?CompletelyManagesAllTimekeepingFunctionsoReal-TimeClockCountsSeconds,Minutes,Hours,DateoftheMonth,Month,DayoftheWeek,andYearwithLeap-
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