参数资料
| 型号： | PT7C4302WEX |
| 厂商： | Pericom |
| 文件页数： | 11/13页 |
| 文件大小： | 0K |
| 描述： | IC RTC NVSRAM 8SOIC |
| 标准包装： | 1 |
| 类型： | 时钟/日历 |
| 特点： | 闰年，NVSRAM，方波输出，涓流充电器 |
| 存储容量： | 31B |
| 时间格式： | HH:MM:SS（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | 3 线串口 |
| 电源电压： | 1.2 V ~ 5.5 V |
| 电压 - 电源，电池： | 1.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 标准包装 |
| 其它名称： | PT7C4302WEXDKR |
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12-07-0001
PT0225-4
07/04/12
7
PT7C4302
Real-time Clock Module (3-wire Interface)
Registers
1.
Allocation of registers
Addr.
(hex)
*1
Function
Register definition
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
00
Seconds (00-59)
/EOSC
*2
S40
S20
S10
S8
S4
S2
S1
01
Minutes (00-59)
0
M40
M20
M10
M8
M4
M2
M1
02
Hours (00-23 / 01-12)
12, /24
0
H20 or
P /A
H10
H8
H4
H2
H1
03
Dates (01-31)
0
D20
D10
D8
D4
D2
D1
04
Months (01-12)
0
MO10
MO8
MO4
MO2
MO1
05
Days of the week (01-07)
0
W4
W2
W1
06
Years (00-99)
Y80
Y40
Y20
Y10
Y8
Y4
Y2
Y1
07
Control
WP
*3
0
08
Trickle charger
TCS
*4
TCS
DS
*5
DS
RS
*6
RS
1F
Clock burst
*7
-
20~3E
RAM
*9
-
3F
RAM burst
*8
-
Caution points:
*1. PT7C4302 uses 5 bits for address. It’s address byte consists of 1 + RAM/Clock select bit +5-bit addr. + Read/Write select bit.
*2. Oscillator Enable bit. When this bit is set to 1, oscillator is stopped but time count chain is still active.
*3. WP: Write Protect bit. WP bit should be cleared before attempting to write to the device.
*4. TCS: Trickle Charger Select.
*5. DS: Diode Select.
*6. RS: Resistor Select.
*7.
Clock burst register address is used as clock/calendar burst mode operation address for consecutively read/write 0~7H
registers. Clock/calendar burst mode operation can continuously read 0H to maximum 7H registers in order; write 0~7H registers
in order. Less or larger than 8 bytes in clock burst write mode are ignored.
*8. RAM burst register address is used as RAM burst mode operation address for consecutively read/write 20~3EH RAM. Less
than 31 bytes in RAM burst read/write mode are valid.
*9. PT7C4302 has 318 static RAM for customer use. It is volatile RAM.
*10.
All bits marked with "0" are read-only bits. Their value when read is always "0". All bits marked with "-" are customer
using space.
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| PT7C4307WEX | 功能描述:IC RTC ALARM NVSRAM 8SOIC RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 标准包装:2,500 系列:- 类型:时钟/日历 特点:警报器，闰年，监控器，监视计时器 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:I²C，2 线串口 电源电压:2.7 V ~ 5.5 V 电压 - 电源，电池:1.8 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| PT7C4311WEX | 功能描述:IC RTC LEAP YEAR Y2K 8SOIC RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 标准包装:2,500 系列:- 类型:时钟/日历 特点:警报器，闰年，监控器，监视计时器 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:I²C，2 线串口 电源电压:2.7 V ~ 5.5 V 电压 - 电源，电池:1.8 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
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