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參數(shù)資料
| 型號(hào)： | SN74ALS568ADWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 計(jì)數(shù)器 |
| 英文描述： | ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PDSO20 |
| 封裝： | PLASTIC, SO-20 |
| 文件頁數(shù)： | 6/15頁 |
| 文件大?。?/td> | 268K |
| 代理商： | SN74ALS568ADWR |
clock transition. The counting function is enabled only when enable P (ENP\) and enable T
(ENT\) are low and ACLR\, SCLR\, and
are high. The up/down (U/D\) input controls the
direction of the count. These counters count up when U/D\ is high and count down when U/D\
is low.
A high level at the output-enable (
) input forces the Q outputs into the high-impedance
state, and a low level enables those outputs. Counting is independent of
. ENT\ is fed
forward to enable the ripple-carry output (RCO\) to produce a low-level pulse while the count
is zero (all Q outputs low) when counting down or maximum (9 or 15) when counting up. The
clocked carry output (CCO\) produces a low-level pulse for a duration equal to that of the low
level of the clock when
is low and the counter is enabled (both ENP\ and ENT\ are low);
otherwise, CCO\ is high. CCO\ does not have the glitches commonly associated with a ripple-
carry output. Cascading is normally accomplished by connecting
or CCO\ of the first
counter to ENT\ of the next counter. However, for very high-speed counting,
should be
used for cascading since CCO\ does not become active until the clock returns to the low level.
The SN54ALS569A is characterized for operation over the full military temperature range of -
55°C to 125°C. The SN74ALS568A and SN74ALS569A are characterized for operation from 0°
C to 70°C.
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Full datasheet in Acrobat PDF: sdas229a.pdf (210 KB) (Updated: 01/01/1995)
Full datasheet in Zipped PostScript: sdas229a.psz (174 KB)
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| SN74ALS569ANSRG4 | ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PDSO20 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74ALS568AN | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| SN74ALS569ADW | 功能描述:計(jì)數(shù)器移位寄存器 Sync 4-Bit Up/Down Bnry Cntr W/3St Otp RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| SN74ALS569ADWE4 | 功能描述:計(jì)數(shù)器 IC Sync 4-Bit Up/Down Bnry Cntr W/3St Otp RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| SN74ALS569ADWG4 | 功能描述:計(jì)數(shù)器 IC Synch 4B Up Down Binary Counters RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| SN74ALS569ADWR | 功能描述:計(jì)數(shù)器 IC Sync 4-Bit Up/Down Bnry Cntr W/3St Otp RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
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