CD4521BNSR屬于集成電路（IC）的計數(shù)器除法器。由美國德州儀器公司制造生產(chǎn)的CD4521BNSR計數(shù)器，除法器計數(shù)器和除法器 IC 是數(shù)字邏輯器件，可對輸入發(fā)生的邏輯轉(zhuǎn)換進(jìn)行計數(shù)，然后使用多個并行輸出重新發(fā)送累加的計數(shù)，和/或生成單個輸出信號轉(zhuǎn)換，從而對應(yīng)用某些整數(shù)數(shù)量輸入信號轉(zhuǎn)換進(jìn)行響應(yīng)。除了簡單的事件計數(shù)，它們還可用于各種頻率合成應(yīng)用。

Features:

Reset disables the RC oscillator for low-

power standby condition

Voo' and Vss' pins are brought out from

the crystal oscillator to allow use of

external resistors for low-power operation

a Maximum input current of 1 yA at 18 V.

over full package-temperature range:

100 nA at 18 V and 25°C

wu Common reset

? 100% tested for 20-V quiescent current

? 5, 10 and 15 V parametric ratings

? Standardized symmetrical output

characteristics

? Meets all requirements of JEDEC

Standard No. 13B, “Standard Specifi-

cations for Description of ‘B' Series

CMOS Devices”