串行接口SPI实时时钟芯片RTC
内置32.768 kHz 晶体单元
工作电压范围:1.7V 至 5.5V
低备份电流:0.48 mA / 3 V (Typ.)
各种检测功能:振荡停止检测功能等
时间和日历功能,各种检测功能,中断功能等
RX-4045SA / RX-4045NB: 爱普生(EPSON) 微型串行接口 RTC 芯片
完整型号:
型号 | 料号 | 封装 | MOQ |
RX-4045SA AA | Q41404552000100 | SOP-14 | 1000PCS/REEL |
RX-4045SA AC | Q41404551000200 | SOP-14 | 1000PCS/REEL |
RX-4045NB AA | Q41404592000100 | SON-22 | 1000PCS/REEL |
RX-4045NB AC | Q41404592000200 | SON-22 | 1000PCS/REEL |
• 内置32.768 kHz 晶体单元
• 为高精度调整频率。
• 接口类型:4线 SPI
• 工作电压范围:1.7V 至 5.5V
• 宽计时器电压范围:1.15V 至 5.5V
• 低备用电流:0.48 mA / 3 V (Typ.)
• 各种检测功能:振荡停止检测功能等。
• 32.768 kHz 时钟频率输出:N-ch 开漏输出
• 时间和日历功能,各种检测功能,中断功能等。
RX-4045NB / RX-4045SA 概述
• 内置32.768 kHz 晶体单元
Ø 为高精度调整频率(相当于每月偏差±13秒)
• 各种检测功能
Ø 电源电压监控功能(具有可选择的检测阈值)。
Ø 停止检测功能。
Ø 上电复位检测功能
• 配备闹钟和定时器
Ø 定时器功能产生一个周期性的中断信号。 至于警报功能,会产生一个可选组合。(星期几,时间,分钟)
RX-4045NB / RX-4045SA 系统框图
RX-4045NB / RX-4045SA 外形尺寸
(Unit: mm)
模塑料内部的金属外壳可能会暴露在本产品的顶部或底部。
这纯粹是装饰性的,对质量、可靠性或电气规格没有任何影响。
RX-4045NB / RX-4045SA 引脚功能
Signal | Input/ | Function |
CE | Input | The chip enabled input pin. (built-in pull-down resistance) At the "H" level, access becomes possible. |
CLK | Input | The shift clock input pin for serial data transfer. |
Dl | Input | The data input pin for serial data transfer. |
DO | Output | The data output pin for serial data transfer. |
FOUT | Output | 32.768 kHz clock output pin with the output control function ( N-ch open drain ) High impedance at the time of output off. |
/INT | Output | Interrupt output ( N-ch open drain ) |
TEST | - | * Used by the manufacturer for testing. (Do not connect externally.) |
VDD | - | Connected to a positive power supply. |
GND | - | Connected to a ground. |
RX-4045NB / RX-4045SA 规格
Recommend Operating Conditions
Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
Power voltage | VDD | - | 1.7 | 3.0 | 5.5 | V |
Cloak voltage | VCLK | - | 1.15 | 3.0 | 5.5 | V |
Operating temperature | TOPR | - | -40 | +25 | +85 | °C |
Frequency characteristics
Item | Symbol | Condition | Rating | Unit |
Frequency tolerance | Δ f/f | Ta=+25°C VDD=3.0V | AA:5±5 *1) | ×10-6 |
Oscillation | TSTA | Ta=+25°C VDD=2.0V | 1 Max. | s |
Frequency/voltage | f/V | Ta=+25°C VDD=2.0V to 5.5V | ±1 Max. | ×10-6 |
*1) *2) Equivalent to ±13 seconds of monthly deviation (excluding offset.)
Current consumption characteristics *Ta=-40°C to +85°C
Item | Symbol | Condition | Min. | Typ. | Max. | Unit | |
Current Consumption | lBK | CE=GND | VDD=5V | - | 0.60 | 1.80 | µA |
VDD=3V | - | 0.48 | 1.20 | ||||
I32k | CE=GND | VDD=3V | - | 0.65 | 2.00 | µA |
Power supply detection voltage *Ta=-30°C to +70°C
Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
High-voltage mode | VDETH | VDD pin | 1.90 | 2.10 | 2.30 | V |
Low-voltage mode | VDETL | VDD pin | 1.15 | 1.30 | 1.45 | V |
型号 | 料号 | 封装 | MOQ |
RX-4045SA AA | Q41404552000100 | SOP-14 | 1000PCS/REEL |
RX-4045SA AC | Q41404551000200 | SOP-14 | 1000PCS/REEL |
RX-4045NB AA | Q41404592000100 | SON-22 | 1000PCS/REEL |
RX-4045NB AC | Q41404592000200 | SON-22 | 1000PCS/REEL |
Product Name RX-4045SA AC
RX-4045NB AC
(Standard form) ① ② ③
① Model ② Package type (SA:SOP-14 pin;NB:SON-22 pin)
③ Frequency tolerance (Exclude offset)
AA: 5±5.0 x 10-6 (Equivalent to ± 13 seconds of monthly deviation) @ +25°C
AC: 0±5.0 x 10-6 (Equivalent to ± 13 seconds of monthly deviation) @ +25°C
Product Number
RX-4045SA AA Q41404552000100
RX-4045SA AC Q41404551000200
RX-4045NB AA Q41404592000100
RX-4045NB AC Q41404592000200
① ② ③ ④ ⑤
① Crystal devices ② Model
③ Pb free code(1 or 2: EU RoHS compliant / Terminal plating : Sn)
④ Detail specifications ⑤ Packaging (SA: 1000pcs/Reel ;NB:1000pcs/Reel)
RX-4045NB / RX-4045SA Footprint (Recommended)
1、RX-4045NB
2、RX-4045SA
(Unit: mm)
为保持稳定运行,需提供一个 0.1uF 的旁路电容,在尽可能靠近晶体产品电源端子的位置(Vcc - GND 之间)。