M48T12 semiconductor 系列
STMicroelectronics N.V.非易失性RAM，具有实时时钟和日历功能
STMicroelectronics的M48T12是一款非易失性RAM集成电路，集成了实时时钟（RTC）和日历功能。这种组合使其成为需要持久内存和时间保持能力的嵌入式系统的理想选择，无需外部组件。如果您正在开发电池供电设备，例如医疗设备、工业控制器或便携式消费电子产品，M48T12可以通过将多个功能整合到单个芯片中，显著简化您的设计过程。
值得注意的一点是其低功耗特性，这对于延长便携设备的电池寿命至关重要。工程师在需要紧凑解决方案来处理数据存储和时间保持时，往往会选用M48T12，尤其是在空间受限的环境中。另一个实用的好处是，即使系统断电，它也能通过内部锂离子电池备份保持当前日期和时间。这一特性确保了关键数据和时间戳的准确性，这对于各种应用中的记录和跟踪至关重要。
系列图片（17 张）
文档与媒体
常见问答
M48T12 semiconductor - 型号列表
共 7 个型号| 制造商零件编号 | 库存 | 价格 | 产品类别 | 标准包装数量 | RoHS | 接口 | 供电电压 | 包装方式 | 安装类型 | 封装形式 | 供应商器件封装 | 类型 | 产品特性 | 日期格式 | 时间格式 | 工作温度 | 工厂包装数量 | 标准封装名称 | 欧盟RoHS | 存储器 | RAM 大小 | 额定电压 | 最小供电电压 | 安装样式 | 包装数量 | 位数 | 功能 | 电池系列 | 总线连接 | 其他名称 | 冷却的封装 | 机械寿命 | SVHC | 海关税号 | 抗辐射加固 | 存取时间 | 存储器容量 | 存储器类型 | 最小输入电压 | 共模瞬态抗扰度（最小） | 重量 | 引脚数 | 材料表面处理 | 已删除 | 密度 | 基本单元 | 制造商全称 | 温度范围 | 结工作温度 | 宽度 | 最小起订量 | 单位包装 | 汽车级 | 无铅定义 | 时钟频率 | 电池节数 | 输出数量 | 端接方式 | SPG | 匹配码 | 单元数量 | 标准交期 | 存储器架构 | 最高温度限值 | 自然散热热阻 | 零件状态 | 复位时间 | 偏置电流 | VCCB电压 | 数据转换器 | 漏电流 | 输出电压4 | 输入电容值 | 电容 @ Vr, F | 上升/下降时间（典型） | 最大功耗 | 开关时间（Ton, Toff）（最大） | 总长度 | 外壳尺寸-插件 | 印刷电路板数量 | 高度 | 长度 | 尺寸/外形 | 可编程特性 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Real Time Clock Parallel 2KByte 24-Pin PCDIP Tube TIMEKEEPER SRAM 2KX8 70NS DIP24 IC TIMEKPR NVRAM 16KBIT 5V 24-DI Real Time Clock 16K (2Kx8) 70ns IC, SRAM TIMEKEEPER 16K, PCDIP24 Memory; NV SRAM; 2kx8bit; 4.5÷5.5V; 70ns; DIP24 NV-RAM 2 k x 8 Bit PCDIP-24, M48T12-70PC1, ST 实时时钟 (RTC), 计时器 SRAM功能, 16kbit RAM, 4.5 → 5.5 V电源, 24针 PCDIP封装 stmicroelectronics | 10 | 1: ¥108.34 | Real Time Clock | Rail / Tube | Lead free / RoHS Compliant | Parallel | 5 V | Tube | Through Hole | 24PCDIP | 24-PCDIP, CAPHAT® | TIMEKEEPER | Leap Year | DW:DM:M:Y | HH:MM:SS | 0 to 70 °C | 14 | CDIP | Compliant | 8 KB | 2048 byte | 4.5 | 4.5 V | Through Hole | PCDIP | 24 | Clock/Calendar/NV Timekeeping RAM/Battery Backup | Yes | Parallel | - | PCDIP | - | :No SVHC (20-Jun-2013) | 85423245 | No | 70ns | 16kbit | NV SRAM | 5.5V | Commercial | 0.004 | :24 | :- | Compliant | 16Kbit | :48 | 2Kx8 | :Commercial | 70C | - | 14 | 14 | NO | RoHS-conform | :32.768kHz | 1 | :8 | :Through Hole | 14 | M48T12-70PC1 | 1 | 27 weeks | 2kx8bit | 70°C | 0°C | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
 Real Time Clock 1M (128Kx8) 85ns Real Time Clock Parallel 128KByte 32-Pin PMDIP IC TIMEKPR NVRAM 1MBIT 3V 32-DIP STMicroelectronics | 10 | 1: ¥248.07 | Real Time Clock | 12 | RoHS Compliant | Parallel | 4.5 V to 5.5 V | Tube | Through Hole | PDIP-32 | 32-PMDIP | Clock/Calendar | Alarm, Leap Year, Watchdog Timer | DW:DM:M:Y | HH:MM:SS | + 70 C | 12 | PDIP | Compliant | 1 MB | 131072 | 3 | 3.6 | Through Hole | PMDIP | 32 | Clock, Calendar, NV Timekeeping, Watchdog Timer | Yes | Parallel | 497-2835-5 | - | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Real Time Clock 1M (128Kx8) 70ns Real Time Clock Parallel 128KByte 32-Pin PMDIP IC TIMEKPR NVRAM 1MBIT 5V 32-DIP STMicroelectronics | 10 | 1: ¥176.80 | Real Time Clock | 12 | RoHS Compliant | Parallel | 4.5 V to 5.5 V | Tube | Through Hole | PDIP-32 | 32-PMDIP | Clock/Calendar | Alarm, Leap Year, Watchdog Timer | DW:DM:M:Y | HH:MM:SS | + 70 C | 12 | PDIP | Compliant | 1 MB | 131072 | 4.5 | 5.5 | Through Hole | PMDIP | 32 | Clock, Calendar, NV Timekeeping, Watchdog Timer | Yes | Parallel | 497-2836-5 | - | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 15 | 1: ¥125.188 | Real Time Clock | 14 | RoHS Compliant | Parallel | 5.5 V | Tube | Through Hole | PCDIP-24 | 24-PCDIP, CAPHAT® | Clock/Calendar | Leap Year | YY-MM-DD-dd | HH:MM:SS | + 70 C | 14 | - | - | 2048 B | - | - | - | Through Hole | - | - | Clock, Calendar, NV Timekeeping RAM | Yes | - | 497-2832-5 | - | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Real Time Clock Parallel 2KByte 24-Pin PCDIP Tube IC TIMEKPR NVRAM 16KBIT 5V 24-DI Memory; Non Volatile RAM; 16 Kbit SRAM; 4.75 to 5.5V; 150; PCDIP24; 3mA Standby Real Time Clock 16K (2Kx8) 150ns SRAM TIMEKEEPER 16K, 48T12, DIP24 Memory,NonVolatileRAM;16KbitSRAM;4.75to5.5V;150;PCDIP24;3mAStandby IC RTC CLK/CALENDAR PAR 24-DI NV-RAM 2 k x 8 Bit PCDIP-24, M48T12-150PC1, ST 实时时钟 (RTC), 计时器 SRAM功能, 16kbit RAM, 4.5 → 5.5 V电源, 24针 PCDIP封装 stmicroelectronics | 555 | 1: ¥288.592 | Real Time Clock | Rail / Tube | Lead free / RoHS Compliant | Parallel | 5 V | Tube | Through Hole | 24PCDIP | 24-PCDIP, CAPHAT® | Clock/Calendar | Leap Year | DW:DM:M:Y | HH:MM:SS | 0 to 70 °C | 14 | CDIP | Compliant | 8 KB | 2048 byte | 4.5 | 4.5 V | Through Hole | PCDIP | 24 | Clock/Calendar/NV Timekeeping RAM/Battery Backup | Yes | Parallel | - | PCDIP | - | :No SVHC (20-Jun-2013) | 85423245 | No | :150ns | :16Kbit | :NVRAM | 4.8to5.8V | Commercial | 0.000001 | :24 | :- | Compliant | 16K | :48 | 2K×8 | :Commercial | 70C | 18.34(Max) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | :48T12 | :10Yr | 80mA | :5V | 10yrs. | ±1μA | 0.4V | 10pF | 10pF | ≤5ns | 1W | ≤5ns | 34.8(Max) | 8.89(Max) | 24 | - | - | - | - |
 Real Time Clock Parallel 128KByte 32-Pin PMDIP Tube IC TIMEKPR NVRAM 1MBIT 5V 32-DIP M48T128Y-70PM1, Real Time Clock, Battery Backup, Calendar, Clock, 131072B RAM, Parallel, 5V, 32-Pin PMDIP STMicroelectronics | 10 | 1: ¥256.07 | - | 12 | Lead free / RoHS Compliant | Parallel | 4.5 V ~ 5.5 V | Tube | Through Hole | 32-DIP Module (0.600", 15.24mm) | 32-PMDIP | Clock/Calendar | Leap Year | DW:DM:M:Y | HH:MM:SS | 0°C ~ 70°C | - | PDIP | Compliant | - | 131072B | 4.5 V | 5.5 V | - | PMDIP | 32 | - | - | Parallel | 497-2834-5 | PMDIP | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 18.8mm | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 9.52mm | 43.18mm | 43.18 x 18.8 x 9.52mm | Battery Backup, Calendar, Chip Deselect, Clock, Switch Over, Write Protection |
 | 10 | 1: ¥256.07 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |