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参数资料
| 型号： | SN54LS490W |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 计数器 |
| 英文描述： | LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, CDFP16 |
| 封装： | CERAMIC, DFP-16 |
| 文件页数： | 4/9页 |
| 文件大小： | 147K |
| 代理商： | SN54LS490W |
SN54LS490, SN74LS490
DUAL 4-BIT DECADE COUNTERS
SDLS125A – OCTOBER 1976 – REVISED JULY 1998
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic diagram (each counter)
SET9
CLK
CLR
4, 12
T
S
R
T
R
T
R
T
S
R
1, 15
2, 14
3, 13
5, 11
6, 10
7, 9
QA
QB
QC
QD
Pin numbers shown are for the D, J, N, and W packages.
相关PDF资料 |
PDF描述 |
|---|---|
| SN74LS490D | LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, PDSO16 |
| SN54LS490FK | LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, CQCC20 |
| SN54LS498L883B | PARALLEL IN PARALLEL OUT SHIFT REGISTER, MQCC28 |
| SN54LS498JS883B | PARALLEL IN PARALLEL OUT SHIFT REGISTER, CDIP24 |
| SN54LS498JS | PARALLEL IN PARALLEL OUT SHIFT REGISTER, CDIP24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN54LS49J | 制造商:Texas Instruments 功能描述:Decoder/Driver Single 4-to-7 14-Pin CDIP Tube |
| SN54LS51BFK | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN54LS51J | 制造商:Texas Instruments 功能描述:AND-OR-Invert Gate 2-Element 2 Wide 2-IN/3-IN Bipolar 14-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:AND-OR-INVERT GATE 2-ELEM 2 WIDE 2-IN BIPOLAR 14CDIP - Rail/Tube |
| SN54LS534J883B | 制造商:MMI 功能描述:NEW |
| SN54LS540J | 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Inverting 3-ST Bipolar 20-Pin CDIP Tube 制造商:Texas Instruments 功能描述:BFFR/LINE DRVR 8CH INV 3-ST BIPOLAR 20CDIP - Rail/Tube |
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