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产品名称:【供应】M74HC259 8 Bit Addressable Latch
当前价格:0.00/PCS
最小起订:2500
供货总量:10000
发 货 期:1天内发货
发布时间:2012-10-29

详细说明:

M74HC259 8 Bit Addressable Latch

The M74HC259 is an high speed CMOS 8 BIT ADDRESSABLE LATCH fabricated 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 addresses output. 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 CLEAR 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 against static discharge and transient excess voltage

技术特性
  • High speed:
    • tPD=20ns (TYP.) at VCC= 6V
  • Low power dissipation:
    • ICC= 4µA(MAX.) at TA=25°C
  • High noise immunity:
    • VNIH= VNIL= 28 % VCC (MIN.)
  • Symmetrical output impedance:
    • |IOH| = IOL= 4mA (MIN)
  • Balanced propagation delays:
    • tPLH tPHL
  • Wide operating voltage range:
    • VCC(OPR) = 2V to 6V
  • Pin and function compatible with 74 series 259
M74HC259 订购信息
订购型号 产品状态 美金价格 数量 封装 包装形式 温度范围 材料声明
M74HC259TTR Active   1000 TSSOP 16 Tape And Reel   M74HC259TTR
M74HC259RM13TR Active   1000 SO-16 Tape And Reel   M74HC259RM13TR
M74HC259B1R Active   1000 PDIP 16 Tube   M74HC259B1R
DATASHEET
描述 版本 大小
M74HC259 : DS0268: 8 bit addressable latch 1 554KB

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