參數(shù)資料
型號(hào): SA555JG
廠商: Texas Instruments, Inc.
英文描述: PRECISION TIMERS
中文描述: 精密定時(shí)器
文件頁數(shù): 2/15頁
文件大?。?/td> 253K
代理商: SA555JG
NE555, NE555Y, SA555, SE555, SE555C
PRECISION TIMERS
SLFS022 – SEPTEMBER 1973 – REVISED FEBRUARY 1992
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
FUNCTION TABLE
THRESHOLD VOLTAGE
RESET
TRIGGER VOLTAGE
OUTPUT
DISCHARGE SWITCH
Low
Irrelevant
Irrelevant
Low
On
High
< 1/3 VDD
> 1/3 VDD
> 1/3 VDD
Irrelevant
High
Off
High
> 2/3 VDD
< 2/3 VDD
Low
On
High
As previously established
Voltage levels shown are nominal.
functional block diagram
1
R
R
S
R
R1
TRIG
THRES
R
VCC
8
CONT
RESET
4
OUT
DISCH
GND
RESET can override TRIG, which can override THRES.
Pin numbers shown are for the D, JG, and P packages only.
5
6
2
1
7
3
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