HT1381A_HT1381A实时时钟芯片

HT1381A_HT1381A实时时钟芯片_HT1381A规格书

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HT1381A，HT1381A数据表，HT1381A数据页，HT1381A原理图，HT1381A引脚，HT1381A规格书，HT1381A系列型号。

HT1381A Description

The HT1380A/HT1381A is a serial timer IC that includes information on seconds, minutes, hours, days of the week, days of the week, months and years. The HT1380A/HT1381A is designed for low-power products and operates in two modes: a 12-hour mode with AM/PM display and a 24-hour mode.The HT1380A/HT1381A contains several registers to store information in an 8-bit data format. A 32768Hz crystal provides correct timing. To minimize the number of pins, the HT1380A/HT1381A uses serial I/O to connect to the microprocessor. Only three signal lines are required: 1) REST, 2) SCLK, and 3) I/O. One byte can be transmitted at a time or eight bytes in a series of pulses.

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HT1381A Features

- Operating voltage: 2.0V~5.5V

- Maximum Input Serial Clock: 500kHz@VDD=2V, 2MHz@VDD=5V

- Operating Current:

♦ Less than 0.5µA@2V

♦ Less than 0.7µA@3V

♦ Less than 1.0µA@5V

- TTL Compatible

♦ VIH: 2.0V ~ VDD+0.3V@VDD=5V

♦ VIL: 0.3V ~ +0.8V@VDD=5V

- Two data transfer modes: single byte or pulse mode

- Serial I/O Transfer

- All registers are stored in BCD format

- HT1380A: 8-pin DIP package

- HT1381A: 8-pin SOP package

HT1381A Applications

- Microcomputer Serial Clock

- Clock and Calendar

HT1381A Pin Configuration (Top View)

HT1381A Function block or application schematic

HT1381A Holtek Hot Models List

HT75A0-3	HT7327-7	HT7344-1	HT7818
HT7318	HT9200A	HT7340-1	HT75C0-7
HT7150-3	HT7560-2	HT7330-A	HT7527-3
HT7125-2	HT7330-7	BS45F3345	HT32F0008
HT7718B	HT66F004	HT7130-2	HT7022A-1
HT7730BA	HT66F0185	HT7330-1	HT16C23A
BS83B08A-3	HT7536-3	HT66FM5240	HT1632D
HT7523-1	HT7540-1	HT68F003	HT7610A
HT9B95B	HT7123-3	HT66F006	HT45F4MA
HT16K33A	HT7525-2	HT7133-3	HT7523-2
HT16220	HT7321-2	HT7523-3	HT7336-2
HT66F017	HT7327-1	HT7523-1	HT7325
HT16C21A	HT7544-2	HT7540-2	HT7123-2
HT7127-3	HT7560-2	HT66F0025	HT7323-1
HT7330-A	HT7750S	HT7150-1	HT7718
BS83B08C	BC7161	BS83B16C	HT7527-3
HT7560-3	HT7540-7	HT7218	HT32F52341
HT1621S	HT7039A-2	HT7544-3	HT7123-1
HT66F0195	HT16L21	HT7536-1	HT7570-3
HT7521-3	HT7733	HT1015-1	HT7039
HT7540-3	HT7722S	HT7722	HT24LC02A
HT7144-2	HT1625	HT92632	HT1622
HT7121-3	HT7530-3	HT7530-7	HT7612B
HT7530-2	HT7536-7	HT7850	HT16L23-CHIP
HT7540-7	HT7580-2	HT7544-3	More models