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參數(shù)資料
| 型號： | PT7C4307WEX |
| 廠商： | Pericom |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 0K |
| 描述： | IC RTC ALARM NVSRAM 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 時鐘/日歷 |
| 特點(diǎn)： | 警報(bào)器，閏年，NVSRAM，方波輸出 |
| 存儲容量： | 56B |
| 時間格式： | HH:MM:SS（12/24 小時） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | I²C，2 線串口 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 電壓 - 電源，電池： | 2 V ~ 3.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | PT7C4307WEXDKR |
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PT0206(08/09)
Ver: 3
1
Data Sheet
PT7C4307
Real-time Clock Module (I
2C Bus)
Features
Using external 32.768kHz quartz crystal
Supports I2C-Bus's high speed mode (400 kHz)
Includes time (Hour/Minute/Second) and calendar
(Year/Month/Date/Day) counter functions (BCD
code)
Programmable square wave output signal
56-byte, battery-backed, nonvolatile (NV) RAM for
data storage
Automatic power-fail detect and switch circuitry of
battery backup
Consumes less than 500nA in battery backup mode
with oscillator running
Ordering Information
Part Number
Package
PT7C4307PE
Lead free 8-Pin DIP
PT7C4307WE
Lead free and Green 8-Pin SOIC
Description
The PT7C4307 serial real-time clock is a low-power
clock/calendar with a programmable square-wave output
and 56 bytes of nonvolatile RAM.
Address and data are transferred serially via a 2-wire,
bidirectional bus. The clock/calendar provides seconds,
minutes, hours, day, date, month, and year information.
The date at the end of the month is automatically
adjusted for months with fewer than 31 days, including
corrections for leap year. The clock operates in either the
24-hour or 12-hour format with AM/PM indicator.
The PT7C4307 has a built-in power sense circuit that
detects power failures and automatically switches to the
battery supply.
Table 1 shows the basic functions of PT7C4307. More
details are shown in section: overview of functions.
Table 1. Basic functions of PT7C4307
Item
Function
PT7C4307
Source: Crystal: 32.768kHz
√
Oscillator enable/disable
√
1
Oscillator
Oscillator fail detect
-
12-hour
√
Time display
24-hour
√
2
Time
Century bit
-
3
Alarm interrupt
-
4
Programmable square wave output (Hz)
1, 4.096k, 8.192k, 32.768k
5
RAM
56
×8
6
Battery backup
√
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT7C4311WEX | 功能描述:IC RTC LEAP YEAR Y2K 8SOIC RoHS:是 類別:集成電路 (IC) >> 時鐘/計(jì)時 - 實(shí)時時鐘 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:時鐘/日歷 特點(diǎn):警報(bào)器，閏年，監(jiān)控器，監(jiān)視計(jì)時器 存儲容量:- 時間格式:HH:MM:SS（12/24 小時） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:I²C，2 線串口 電源電壓:2.7 V ~ 5.5 V 電壓 - 電源，電池:1.8 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| PT7C4337 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-time Clock Module (I2C Bus) |
| PT7C4337PE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-time Clock Module (I2C Bus) |
| PT7C4337UE | 制造商:Pericom Semiconductor Corporation 功能描述: |
| PT7C4337WE | 制造商:Pericom Semiconductor Corporation 功能描述:1.8V - 5.5V, REA TIME CLOCK, 12C BUS, ALARM/CLOCK OUTPUT - Bulk |
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