HT138, HT1380, HT1380-8DEP.U Selling Leads, Datasheet
MFG:HT Package Cooled:SOP-8/B D/C:05+
HT138, HT1380, HT1380-8DEP.U Datasheet download
Part Number: HT138
MFG: HT
Package Cooled: SOP-8/B
D/C: 05+
HT138, HT1380, HT1380-8DEP.U
- Table of contents:
Info of HT138
Info of HT1380
Info of HT1380-8DEP.U
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About HT1380
PDF/DataSheet Download
Datasheet: HT1380
File Size: 188254 KB
Manufacturer: HOLTEK [Holtek Semiconductor Inc]
Download : Click here to Download
About HT1380
PDF/DataSheet Download
Datasheet: HT1380
File Size: 188254 KB
Manufacturer: HOLTEK [Holtek Semiconductor Inc]
Download : Click here to Download
About HT1015
PDF/DataSheet Download
Datasheet: HT1015
File Size: 622555 KB
Manufacturer: HOLTEK [Holtek Semiconductor Inc]
Download : Click here to Download
HT1380 General Description
The HT1380/HT1381 is a serial timekeeper IC which provides seconds, minutes, hours, day, date, month and year information. The number of days in each month and leap years are automatically adjusted. The HT1380/HT1381 is designed for low power consumption and can operate in two modes: one is the 12-hour mode with an AM/PM indicator, the other is the 24-hour mode.
The HT1380/HT1381 has several registers to store the corresponding information with 8-bit data format. A 32768Hz crystal is required to provide the correct timing. In order to minimize the pin number, the HT1380/HT1381 use a serial I/O transmission method to interface with a microprocessor. Only three wires are required: (1) REST, (2) SCLK and (3) I/O. Data can be delivered 1 byte at a time or in a burst of up to 8 bytes.
HT1380 Maximum Ratings
Supply Voltage.............................-0.3V to 5.5V
Storage Temperature................ -50 to 125
Input Voltage ............... VSS-0.3V to VDD+0.3V
Operating Temperature ................. 0 to 70
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Storage Temperature................ -50 to 125
Input Voltage ............... VSS-0.3V to VDD+0.3V
Operating Temperature ................. 0 to 70
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
HT1380 Features
` Operating voltage: 2.0V~5.5V
` Maximum input serial clock: 500kHz at VDD=2V, 2MHz at VDD=5V
` Operating current: less than 400nA at 2V, less than 1.2A at 5V
` TTL compatible
` VIH: 2.0V~VDD+0.3V at VDD=5V
` VIL: -0.3V~+0.8V at VDD=5V
` Two data transmission modes: single-byte, or burst mode
` Serial I/O transmission
` All registers store BCD format
` HT1380: 8-pin DIP package HT1381: 8-pin SOP package
` Maximum input serial clock: 500kHz at VDD=2V, 2MHz at VDD=5V
` Operating current: less than 400nA at 2V, less than 1.2A at 5V
` TTL compatible
` VIH: 2.0V~VDD+0.3V at VDD=5V
` VIL: -0.3V~+0.8V at VDD=5V
` Two data transmission modes: single-byte, or burst mode
` Serial I/O transmission
` All registers store BCD format
` HT1380: 8-pin DIP package HT1381: 8-pin SOP package
HT1380 Typical Application
· Microcomputer serial clock
· Clock and Calendar
· Clock and Calendar
HT1380 Connection Diagram
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