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IC thời gian thực DS12C887
IC thời gian thực DS12C887
Mã sản phẩm: VP808Giá bán: 59.000 đ
Tình trạng: Gọi đặt hàng
Datasheet DS12C887
Thông tin sản phẩm
IC thời gian thực DS12C887. IC DS12C887 thiết kế để thay thế trực tiếp cho DS1287. DS12C887 tạo ra đồng hồ về thời gian và lịch, bộ nhơ 113 bytes, điều chỉnh cho những năm nhuân, chon chế độ hiển thị 12H hay 24H.
Features
– Drop-in replacement for IBM AT computer clock/calendar
– Pin compatible with the MC146818B and DS1287
– Total nonvolatile with over 10 years of operation in the absence of power
– Self-contained subsystem includes lithium, quartz, and support circuitry
– Counts seconds, minutes, hours, days, day of the week, date, month, and year with leap year compensation valid up to 2100
– Binary or BCD representation of time, caledar, and alarm
– 12-or-24-hour clock with AM and PM in 12-hour mode
– Daylight savings time option
– Selectable between Motorola and Intel bus timing
– Multiplex bus for pin efficiency
– Interfaced with software as 128 RAM locations
– Programmable square ware output signal
– Bus-compatible interrupt signals (IRQ)
– Three interrupts are separately software maskable and testable
– Century register
Specifications
| Type | Clock/Calendar |
| Features | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output |
| Memory Size | 113 Bytes |
| Time Format | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD-dd |
| Interface | Parallel |
| Voltage-Supply | 4.5V ÷ 5.5V |
| Voltage-Supply Battery | 2.5 V ÷ 4V |
| Operating Temperature | 00C ÷ 700C |
| Mounting Type | Through Hole |
| Package | 24-DIP |
