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SN74AS161DE4

SN74AS161DE4
Mfr. #:
SN74AS161DE4
説明:
Counter ICs Synchronous 4-Bit Binary Counters
ライフサイクル:
メーカー新製品
データシート:
SN74AS161DE4 データシート
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詳しくは:
SN74AS161DE4 詳しくは SN74AS161DE4 Product Details
製品属性
属性値
メーカー：
テキサスインスツルメンツ
製品カテゴリ：
カウンターIC
JBoss：
Y
取り付けスタイル：
SMD / SMT
パッケージ/ケース：
SOP-16
カウンタータイプ：
バイナリ
ロジックファミリ：
TTL
ビット数：
4
カウント方法：
非同期
動作供給電圧：
4.5 V to 5.5 V
最低動作温度：
0 C
最高作動温度：
+ 70 C
包装：
チューブ
動作温度範囲：
0 C to + 70 C
ブランド：
テキサスインスツルメンツ
製品タイプ：
カウンターIC
ファクトリーパックの数量：
1
サブカテゴリ：
カウンターIC
単位重量：
0.014829 oz
Tags
SN74AS161D, SN74AS161, SN74AS16, SN74AS1, SN74AS, SN74A, SN74, SN7
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Step1: Vacuum Packaging with PL
Step1:
Vacuum Packaging with PL
Step2: Anti-Static Bag
Step2:
Anti-Static Bag
Step3: Packaging Boxes
Step3:
Packaging Boxes
***ser
Counter ICs Synchronous 4-Bit Binary Counters
***ark
Counter Logic IC; Logic Family:AS; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Package/Case:16-SOIC; No. of Pins:16; Operating Temperature Range:0°C to +70°C; Input Type:TTL; Leaded Process Compatible:Yes; Output Type:TTL ;RoHS Compliant: Yes
***as Instruments
These synchronous, presettable, 4-bit decade and binary counters feature an internal carry look-ahead circuitry for application in high-speed counting designs. The SN54ALS162B is a 4-bit decade counter. The �ALS161B, �ALS163B, �AS161, and �AS163 devices are 4-bit binary counters. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincidentally with each other when instructed by the count-enable (ENP, ENT) inputs and internal gating. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple-clock) counters. A buffered clock (CLK) input triggers the four flip-flops on the rising (positive-going) edge of the clock input waveform. These counters are fully programmable; they can be preset to any number between 0 and 9 or 15. Because presetting is synchronous, setting up a low level at the load (LOAD\) input disables the counter and causes the outputs to agree with the setup data after the next clock pulse, regardless of the levels of the enable inputs. The clear function for the �ALS161B and �AS161 devices is asynchronous. A low level at the clear (CLR\) input sets all four of the flip-flop outputs low, regardless of the levels of the CLK, LOAD\, or enable inputs. The clear function for the SN54ALS162B, �ALS163B, and �AS163 devices is synchronous, and a low level at CLR sets all four of the flip-flop outputs low after the next clock pulse, regardless of the levels of the enable inputs. This synchronous clear allows the count length to be modified easily by decoding the Q outputs for the maximum count desired. The active-low output of the gate used for decoding is connected to CLR\ to synchronously clear the counter to 0000 (LLLL). The carry look-ahead circuitry provides for cascading counters for n-bit synchronous applications without additional gating. ENP and ENT inputs and a ripple-carry (RCO) output are instrumental in accomplishing this function. Both ENP and ENT must be high to count, and ENT is fed forward to enable RCO. RCO, thus enabled, produces a high-level pulse while the count is maximum (9 or 15, with QA high). The high-level overflow ripple-carry pulse can be used to enable successive cascaded stages. Transitions at ENP or ENT are allowed, regardless of the level of CLK. These counters feature a fully independent clock circuit. Changes at control inputs (ENP, ENT, or LOAD\) that modify the operating mode have no effect on the contents of the counter until clocking occurs. The function of the counter (whether enabled, disabled, loading, or counting) is dictated solely by the conditions meeting the stable setup and hold times. The SN54ALS161B, SN54ALS162B, SN54ALS163B, SN54AS161, and SN54AS163 are characterized for operation over the full military temperature range of �55C to 125C. The SN74ALS161B, SN74ALS163B, SN74AS161, and SN74AS163 are characterized for operation from 0C to 70C.
モデル 説明 ストック 価格
SN74AS161DE4
DISTI # SN74AS161DE4-ND		IC COUNTER BIN SYNC 4BIT 16-SOIC
RoHS: Compliant
Min Qty: 200
Container: Tube		Limited Supply - Call
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    可用性
    ストック:
    Available
    注文中:
    2500
    数量を入力してください:
    SN74AS161DE4の現在の価格は参考用です。最高の価格をご希望の場合は、お問い合わせまたは直接メールで営業チーム[email protected]までご連絡ください。
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