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参数资料
| 型号： | DS1672-2 |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP8 |
| 封装： | DIP-8 |
| 文件页数： | 6/13页 |
| 文件大小： | 104K |
| 代理商： | DS1672-2 |
DS1672
2 of 13
DS1672 BLOCK DIAGRAM Figure 1
ADDRESS MAP
The counter is accessed by reading or writing the first 4 bytes of the DS1672 (00h - 03h). The control
register and trickle charger are accessed by reading or writing the appropriate register bytes as illustrated
in Figure 2. If the master continues to send or request more data after the address pointer has reached
05h, the address pointer will wrap around to location 00h.
DS1672 REGISTERS Figure 2
Address
B7
B6
B5B4B3B2B1B0
Function
00h
Counter
Byte 1
01h
Counter
Byte 2
02h
Counter
Byte 3
03h
Counter
Byte 4
04h
EOSC
Control
05h
TCS
DS
RS
Trickle
Charger
DATA RETENTION MODE
The device is fully accessible and data can be written and ready only when VCC is greater than VPF.
However, when VCC falls below V
PF, (point at which write protection occurs) the internal clock registers
are blocked from any access. If VPF is less than VBACKUP, the device power is switched from VCC to
VBACKUP when VCC drops below VPF. If VPF is greater than VBACKUP, the device power is switched from
VCC to VBACKUP when VCC drops below VBACKUP. The registers are maintained from the VBACKUP source
until VCC is returned to nominal levels.
32-BIT
COUNTER
(4 BYTES)
SERIAL BUS
INTERFACE
OSCILLATOR
AND DIVIDER
POWER
CONTROL
ADDRESS
REGISTER
CONTROL
LOGIC
VCC
VBACKUP
GND
SCL
SDA
CONTROL
TRICKLE CHARGER
X1
X2
RST
相关PDF资料 |
PDF描述 |
|---|---|
| DS1672-33 | 0 TIMER(S), REAL TIME CLOCK, PDIP8 |
| DS1672S-33 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| DS1672-3 | 0 TIMER(S), REAL TIME CLOCK, PDIP8 |
| DS1672U-2 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| DS1672U-33 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1672-2+ | 功能描述:实时时钟 I2C 32-Bit Binary Counter RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1672-3 | 功能描述:实时时钟 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1672-3+ | 功能描述:实时时钟 I2C 32-Bit Binary Counter RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS167233 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:I2C 32-Bit Binary Counter RTC |
| DS1672-33 | 功能描述:实时时钟 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
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