- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄360461 > 74HC423DB (NXP SEMICONDUCTORS) Dual retriggerable monostable multivibrator with reset PDF資料下載
參數(shù)資料
| 型號： | 74HC423DB |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 諧振器 |
| 英文描述： | Dual retriggerable monostable multivibrator with reset |
| 中文描述： | HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 103K |
| 代理商： | 74HC423DB |
1998 Jul 08
8
Philips Semiconductors
Product specification
Dual retriggerable monostable
multivibrator with reset
74HC/HCT423
Notes
1.
For other R
EXT
and C
EXT
combinations see Fig.9.
If C
EXT
>
10 pF, the next formula is valid:
t
W
= K
×
R
EXT
×
C
EXT
(typ.)
where: t
W
= output pulse width in ns;
R
EXT
= external resistor in k
; C
EXT
= external capacitor in pF;
K
= constant = 0.45 for V
CC
= 5.0 V and 0.55 for V
CC
= 2.0 V.
The inherent test jig and pin capacitance at pins 15 and 7 (nR
EXT
/C
EXT
) is approximately 7 pF.
The time to retrigger the monostable multivibrator depends on the values of R
EXT
and C
EXT
.
The output pulse width will only be extended when the time between the active-going edges of the trigger input pulses
meets the minimum retrigger time.
If C
EXT
>
10 pF, the next formula (at V
CC
= 5.0 V) for the set-up time of a retrigger pulse is valid:
t
rt
= 30
+
0.19
×
R
EXT
×
C
EXT0.9
+
13
×
R
EXT1.05
(typ.)
where, t
rt
= retrigger time in ns;
C
EXT
= external capacitor in pF;
R
EXT
= external resistor in k
.
The inherent test jig and pin capacitance at pins 15 and 7 (nR
EXT
/C
EXT
) is 7 pF.
When the device is powered-up, initiate the device via a reset pulse, when C
EXT
<
50 pF.
2.
3.
AC WAVEFORMS
Fig.7 Output pulse control using retrigger pulse; nR
D
= HIGH.
Fig.8 Output pulse control using reset input nR
D
; nA = LOW.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74HC423PW | Dual retriggerable monostable multivibrator with reset |
| 74HC533 | Octal D-type transparent latch; 3-state; inverting |
| 74HCT533 | CONNECTOR ACCESSORY |
| 74HC58 | Dual AND-OR gate(雙與或門) |
| 74HC594 | 8-bit shift register with output register |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74HC423D-T | 制造商:NXP Semiconductors 功能描述:Monostable Multivibrator Dual 16-Pin SO T/R |
| 74HC423N | 制造商:NXP Semiconductors 功能描述:Monostable Multivibrator Dual 16-Pin PDIP Bulk 制造商:NXP Semiconductors 功能描述:Monostable Multivibrator Dual 16-Pin PDIP Bulk Bulk |
| 74HC423N,652 | 功能描述:單穩(wěn)態(tài)多諧振蕩器 DUAL MONO RETRIG RoHS:否 制造商:Texas Instruments 每芯片元件:1 邏輯系列:LVC 邏輯類型:Monostable Multivibrator 封裝 / 箱體:SSOP-8 傳播延遲時間:18.6 ns 高電平輸出電流:- 32 mA 低電平輸出電流:32 mA 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| 74HC42D | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 BCD-TO-DEC. DECODER RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74HC42D,652 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 BCD-TO-DEC. DECODER RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。