參數(shù)資料
型號: HCF4521BM1
廠商: 意法半導(dǎo)體
英文描述: Octal Buffers/Drivers With 3-State Outputs 20-CFP -55 to 125
中文描述: 24舞臺分頻器
文件頁數(shù): 1/12頁
文件大?。?/td> 102K
代理商: HCF4521BM1
HCF4521B
24 STAGE FREQUENCY DIVIDER
February 1999
I
VERYLOWQUIESCENTCURRENT
I
HIGHNOISEIMMUNITY
I
VOLTAGESUPPLYRANGE3V TO18V
I
ALLSTAGESARERESETTABLE
I
RESETDISABLESTHERCOSCILLATORFOR
LOWSTANDBYPOWERDRAIN
I
RCANDCRYSTALOSCILLATOROUTPUT
ARECAPABLEOF DRIVING EXTERNAL
LOADS
DESCRIPTION
The HCF4521B is a monolithic integrated circuit,
available in 16-lead dual-in-line plastic package
and plasticmicro packages.
The HCF4521B have a chain of 24 flip-flops with
an input circuit that allows three modes of
operation. The input circuit functions as a crystal
or an RC oscillator or as an input buffer for an
external oscillator. Each flip-flop performs a
divide-by-twofunctiongiving a total count of 2
24
=
16,777,216.The count advances on the negative
goingedge of the clock.Access is available to the
final seven stages giving the device added
flexibility.
PIN CONNECTION
M1
(Micro Package)
EY
(Plastic Package)
ORDER CODES :
HCF4521BEY
HCF4521BM1
1/12
相關(guān)PDF資料
PDF描述
HCF4522BM1 PROGRAMMABLE BCD DIVIDER-BY-N COUNTER
HCF4522B Octal Buffers/Drivers With 3-State Outputs 20-LCCC -55 to 125
HCF4522BC1 Octal Buffers/Drivers With 3-State Outputs 20-CDIP -55 to 125
HCF4522BEY Octal Buffers/Drivers With 3-State Outputs 20-CFP -55 to 125
HCC4522BF Replaced by SN54S74 : Dual D-type Positive-Edge-Triggered Flip-Flops With Preset And Clear 14-CDIP -55 to 125
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