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触发器、锁存器和寄存器
D 型锁存器

CD4508B

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CMOS 二路 4 位锁存器

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CD4508B

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Number of channels 8 Technology family CD4000 Supply voltage (min) (V) 3 Supply voltage (max) (V) 18 Input type Standard CMOS Output type 3-State Clock frequency (max) (MHz) 8 IOL (max) (mA) 2.4 IOH (max) (mA) -2.4 Supply current (max) (µA) 3000 Features High speed (tpd 10-50ns), Partial power down (Ioff), Standard speed (tpd > 50ns) Operating temperature range (°C) -55 to 125 Rating Catalog
Number of channels 8 Technology family CD4000 Supply voltage (min) (V) 3 Supply voltage (max) (V) 18 Input type Standard CMOS Output type 3-State Clock frequency (max) (MHz) 8 IOL (max) (mA) 2.4 IOH (max) (mA) -2.4 Supply current (max) (µA) 3000 Features High speed (tpd 10-50ns), Partial power down (Ioff), Standard speed (tpd > 50ns) Operating temperature range (°C) -55 to 125 Rating Catalog
SOIC (DW) 24 159.65 mm² 15.5 x 10.3 SOP (NS) 24 117 mm² 15 x 7.8 TSSOP (PW) 24 49.92 mm² 7.8 x 6.4
  • Two independent 4-bit latches
  • Individual master reset for each 4-bit latch
  • 3-state outputs with high-impedance state for bus line applications
  • Medium-speed operation: tPHL = tPLH = 70 ns (typ.) at VDD = 10 V and CL = 50 pF
  • 100% tested for quiescent current at 20 V
  • 5-V, 10-V, and 15-V parametric ratings
  • Standardized, symmetrical output characteristics
  • Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
  • Noise margin (full package-temperature range) =
            1 V at VDD = 5 V
            2 V at VDD = 10 V
         2.5 V at VDD = 15 V
  • Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of ’B’ Series CMOS Devices"
  • Applications:
    • Buffer storage
    • Holding registers
    • Data storage and multiplexing
  • Two independent 4-bit latches
  • Individual master reset for each 4-bit latch
  • 3-state outputs with high-impedance state for bus line applications
  • Medium-speed operation: tPHL = tPLH = 70 ns (typ.) at VDD = 10 V and CL = 50 pF
  • 100% tested for quiescent current at 20 V
  • 5-V, 10-V, and 15-V parametric ratings
  • Standardized, symmetrical output characteristics
  • Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
  • Noise margin (full package-temperature range) =
            1 V at VDD = 5 V
            2 V at VDD = 10 V
         2.5 V at VDD = 15 V
  • Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of ’B’ Series CMOS Devices"
  • Applications:
    • Buffer storage
    • Holding registers
    • Data storage and multiplexing

CD4508B dual 4-bit latch contains two identical 4-bit latches with separate STROBE, RESET, and OUTPUT DISABLE control. With the STROBE line in the high state, the data on the "D" inputs appear at the corresponding "Q" outputs provided the DISABLE line is in the low state. Changing the STROBE line to the low state locks the data into the latch. A high on the reset line forces the outputs to a low level regardless of the state of the STROBE input. The outputs are forced to the high-impedance state for bus line applications by a high level on the DISABLE input.

The CD4508B types are supplied in 24-lead hermetic dual-in-line ceramic packages (F3A suffix), 24-lead dual-in-line plastic packages (E suffix), 24-lead small-outline packages (M, M96, and NSR suffixes), and 24-lead thin shrink small-outline packages (PW and PWR suffixes).

The CD4508B is similar to industry type MC14508.

CD4508B dual 4-bit latch contains two identical 4-bit latches with separate STROBE, RESET, and OUTPUT DISABLE control. With the STROBE line in the high state, the data on the "D" inputs appear at the corresponding "Q" outputs provided the DISABLE line is in the low state. Changing the STROBE line to the low state locks the data into the latch. A high on the reset line forces the outputs to a low level regardless of the state of the STROBE input. The outputs are forced to the high-impedance state for bus line applications by a high level on the DISABLE input.

The CD4508B types are supplied in 24-lead hermetic dual-in-line ceramic packages (F3A suffix), 24-lead dual-in-line plastic packages (E suffix), 24-lead small-outline packages (M, M96, and NSR suffixes), and 24-lead thin shrink small-outline packages (PW and PWR suffixes).

The CD4508B is similar to industry type MC14508.
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* 数据表 CD4508B TYPES 数据表 (Rev. B) 2003年 6月 16日

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包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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