- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98084 > SN54221W (TEXAS INSTRUMENTS INC) TTL/H/L SERIES, DUAL MONOSTABLE MULTIVIBRATOR, CDFP16 PDF資料下載
參數(shù)資料
| 型號： | SN54221W |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 諧振器 |
| 英文描述： | TTL/H/L SERIES, DUAL MONOSTABLE MULTIVIBRATOR, CDFP16 |
| 封裝： | CERAMIC, DFP-16 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 352K |
| 代理商： | SN54221W |
Product Folder: SN54LS221, Dual Monostable Multivibrators With Schmitt-trigger Inputs
extended if VCC is held to 5 V and free-air temperature is 25°C. Duty cycles as high as 90% are achieved when using maximum recommended RT. Higher duty cycles are available if a certain amount of pulse-
width jitter is allowed.
The variance in output pulse width from device to device typically is less than ±0.5% for given external timing components. An example of this distribution for the '221 is shown in Figure 3. Variations in
output pulse width versus supply voltage and temperature for the '221 are shown in Figures 4 and 5, respectively.
Pin assignments for these devices are identical to those of the SN54123/SN74123 or SN54LS123/SN74LS123 so that the '221 or 'LS221 devices can be substituted for those products in systems not using the
retrigger by merely changing the value of Rext and/or Cext; however, the polarity of the capacitor must be changed.
The SN54221 and SN54LS221 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74221 and SN74LS221 are characterized for operation from 0°C to 70°C.
Pulsed-output patterns are tested during AC switching at 25°C with Rext = 2 k , and Cext = 80 pF.
This condition is true only if the output of the latch formed by the two NAND gates has been conditioned to the logic 1 state prior to CLR\ going high. This latch is conditioned by taking either A high or B low while CLR\ is inactive (high).
TECHNICAL DOCUMENTS
To view the following documents, Acrobat Reader 4.0 is required.
To download a document to your hard drive, right-click on the link and choose 'Save'.
DATASHEET
APPLICATION NOTES
View Application Notes for Digital Logic
q
q
q
Evaluation of Nickel/Palladium/Gold-Finished Surface-Mount Integrated Circuits (SZZA026 - Updated: 06/20/2001)
q
q
q
q
Understanding and Interpreting Texas Instruments Standard-Logic Products Data Sh (Rev. A) (SZZA036A - Updated: 02/27/2003)
MORE LITERATURE
q
q
q
q
q
Overview of IEEE Std 91-1984, Explanation of Logic Symbols Training Booklet (Rev. A) (SDYZ001A, 138 KB - Updated: 07/01/1996)
q
q
USER GUIDES
q
PRICING/AVAILABILITY/PKG
file:///E|/042120003_HTML/sn54ls221.html (2 of 3) [25-Apr-03 5:33:07 PM]
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN54247J | TTL/H/L SERIES, SEVEN SEGMENT DECODER/DRIVER, INVERTED OUTPUT, CDIP16 |
| SN54LS248W | LS SERIES, SEVEN SEGMENT DECODER/DRIVER, TRUE OUTPUT, CDFP16 |
| SN74247N | TTL/H/L SERIES, SEVEN SEGMENT DECODER/DRIVER, INVERTED OUTPUT, PDIP16 |
| SN54LS248FK | LS SERIES, SEVEN SEGMENT DECODER/DRIVER, TRUE OUTPUT, CQCC20 |
| SN54249W-10 | TTL/H/L SERIES, SEVEN SEGMENT DECODER/DRIVER, TRUE OUTPUT, CDFP16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN5423 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL 4-INPUT NOR GATES WITH STROBE |
| SN5423J | 制造商:Texas Instruments 功能描述:NOR GATE 2-ELEM 4-IN BIPOLAR 16CDIP - Rail/Tube |
| SN5423W | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL 4-INPUT NOR GATES WITH STROBE |
| SN54246 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS |
| SN54246J | 制造商:TI 制造商全稱:Texas Instruments 功能描述:BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。