M74HC259

批量生产
Design Win

8位可寻址锁存器

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产品概述

描述

The M74HC259 is a high-speed CMOS 8-bit addressable latch manufactured with silicon gate C2MOS technology.

The M74HC259 has single data input (D) 8 latch outputs (Q0-Q7), 3 address inputs (A, B, and C), common enable input (E), and a common CLEAR input. To operate this device as an addressable latch, data is held on the D input, and the address of the latch into which the data is to be entered is held on the A, B, and C inputs. When ENABLE is taken low, the data flows through to the address outputs. The data is stored on the positive-going edge of the ENABLE pulse. All unaddressed latches will remain unaffected. With ENABLE in the high state, the device is deselected and all latches remain in their previous state, unaffected by changes on the data or address inputs. To eliminate the possibility of entering erroneous data into the latches, the ENABLE should be held high (inactive) while the address lines are changing. If ENABLE is held high and is taken low, all eight latches are cleared to the low state. If ENABLE is low, all latches except the addressed latch will be cleared. The addressed latch will instead follow the D input, effectively implementing a 3-to-8 line decoder.

All inputs are equipped with protection circuits to guard against static discharge and transient excess voltage.

  • 所有功能

    • High speed: tPD = 20 ns (typ.) at VCC = 6 V
    • Low power dissipation: ICC = 4 µA (max.) at TA = 25 °C
    • High noise immunity: VNIH = VNIL = 28 % VCC (min.)
    • Symmetrical output impedance: |IOH| = IOL = 4 mA (min)
    • Balanced propagation delays: tPLH ~= tPHL
    • Wide operating voltage range: VCC (OPR) = 2 V to 6 V
    • Pin and function compatible with 74 series 259
    • ESD performance
      • CDM: 1 kV
      • HBM: 1.5 kV
      • MM: 200 V

EDA符号、封装和3D模型

STMicroelectronics - M74HC259

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质量与可靠性

产品型号 Marketing Status 等级规格 符合RoHS级别 材料声明**
M74HC259YRM13TR
批量生产
SO-16 汽车应用 Ecopack2
M74HC259YTTR
批量生产
TSSOP-16L 汽车应用 Ecopack3

M74HC259YRM13TR

Package:

SO-16

Material Declaration**:

Marketing Status

批量生产

Package

SO-16

Grade

Automotive

RoHS Compliance Grade

Ecopack2

M74HC259YTTR

Package:

TSSOP-16L

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

TSSOP-16L

Grade

Automotive

RoHS Compliance Grade

Ecopack3

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

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M74HC259YTTR
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经销商的可用性 M74HC259YTTR

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M74HC259YRM13TR
Available at distributors

经销商的可用性 M74HC259YRM13TR

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M74HC259YTTR

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M74HC259YRM13TR 批量生产

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ECCN (EU):

产品型号:

M74HC259YRM13TR

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(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商