RX-4801JE:UB Epson Toyocom Corporation, RX-4801JE:UB Datasheet - Page 3

• Manufacturer Part Number: RX-4801JE:UB
• Description: REAL TIME CLOCK MODULE
• Manufacturer: Epson Toyocom Corporation

Specifications of RX-4801JE:UB

• Memory Size: *
• Time Format: *
• Date Format: *
• Interface: *
• Voltage - Supply: *
• Operating Temperature: *
• Mounting Type: *
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q5730413A

RX - 4801 SA / JE
1. Overview.......................................................................................................................... 1
2. Block Diagram ................................................................................................................. 1
3. Terminal description ........................................................................................................ 2
4. Absolute Maximum Ratings ............................................................................................. 3
5. Recommended Operating Conditions.............................................................................. 3
6. Frequency Characteristics ............................................................................................... 3
7. Electrical Characteristics ................................................................................................. 4
8. Use Methods.................................................................................................................... 6
9. External Dimensions / Marking Layout .......................................................................... 25
10. Application notes ......................................................................................................... 27
3.1. Terminal connections........................................................................................................................2
3.2. Pin Functions ....................................................................................................................................2
7.1. DC characteristics.............................................................................................................................4
7.2. AC Characteristics ............................................................................................................................5
8.1. Overview of Functions ......................................................................................................................6
8.2. Description of Registers....................................................................................................................7
8.3. Fixed-cycle Timer Interrupt Function...............................................................................................14
8.4. Time Update Interrupt Function ......................................................................................................17
8.5. Alarm Interrupt Function .................................................................................................................19
8.6. Read/Write of data..........................................................................................................................22
8.7. VDD and CE timing.........................................................................................................................23
8.8. Backup and Recovery.....................................................................................................................23
8.8. Connection with Typical Microcontroller..........................................................................................24
8.9. When used as a clock source (32 kHz-TCXO) ...............................................................................24
8.2.1. Register table .....................................................................................................................7
8.2.2. Control register (Reg F) ......................................................................................................8
8.2.3. Flag register (Reg-E) ........................................................................................................10
8.2.4. Extension register (Reg-D) ...............................................................................................11
8.2.5. RAM register (Reg - 7) .....................................................................................................12
8.2.6. Clock counter (Reg - 0 to 2)..............................................................................................12
8.2.7. Day counter (Reg - 3) .......................................................................................................12
8.2.8. Calendar counter (Reg 4 to 6) ..........................................................................................13
8.2.9. Alarm registers (Reg - 8 to A) ...........................................................................................13
8.2.10. Fixed-cycle timer control registers (Reg - B to C) ...........................................................13
8.3.1. Diagram of fixed-cycle timer interrupt function..................................................................14
8.3.2. Related registers for function of time update interrupts. ...................................................15
8.3.3. Fixed-cycle timer interrupt interval (example) ...................................................................16
8.3.4. Fixed-cycle timer start timing ............................................................................................16
8.4.1. Time update interrupt function diagram ............................................................................17
8.4.2. Related registers for time update interrupt functions. .......................................................18
8.4.1. Diagram of alarm interrupt function ..................................................................................19
8.5.2. Related registers ..............................................................................................................20
8.5.2. Examples of alarm settings...............................................................................................21
8.6.1. Write of data .....................................................................................................................22
8.6.2. Read of data .....................................................................................................................22
8.6.3. Write/Read mode setting code .........................................................................................22
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