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HD74HC160 の電気的特性と機能

HD74HC160のメーカーはHitachi Semiconductorです、この部品の機能は「Synchronous Decade/4-bit Binary/Counter(Direct Clear/Synchronous Clear)」です。


製品の詳細 ( Datasheet PDF )

部品番号 HD74HC160
部品説明 Synchronous Decade/4-bit Binary/Counter(Direct Clear/Synchronous Clear)
メーカ Hitachi Semiconductor
ロゴ Hitachi Semiconductor ロゴ 




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HD74HC160 Datasheet, HD74HC160 PDF,ピン配置, 機能
HD74HC160/HD74HC161/
HD74HC162/HD74HC163
Synchronous Decade Counter (Direct Clear)
Synchronous 4-bit Binary Counter (Direct Clear)
Synchronous Decade Counter (Synchronous Clear)
Synchronous 4-bit Binary Counter (Synchronous Clear)
Description
The HD74HC160 and the HD74HC162 are 4 bit decade counters, and the HD74HC161 and the
HD74HC163 are 4 bit binary counters All flip-flops are clocked simultaneously on the low to high to
transition (positive edge) of the clock input waveform.
These counters may be preset using the load input. Presetting of all four flip-flops is synchronous to thte
rising edge of clock. When load is held low counting is disabled and the data on the A, B, C, and D inputs
is loaded into the counter on the rising edge of clock. If the load input is taken high before the positive
edge of clock the count operation will be unaffected.
All of these counters may be cleared by utilizing the clear input. The clear function on the HD74HC162
and HD74HC163 counters are synchronous to the clock. That is, the counters are cleared on the positive
edge of clock while the clear input is held low.
The HD74HC160 and HD74HC161 counters are cleared asynchronously. When the clear is taken low the
counter is cleared immediately regardless of the clock.
Two active high enable inputs Enable P and Enable T and a ripple carry output are provided to enable easy
cascading of counters. Both enable inputs must be high to count. The Enable T input also enables the
Ripple Carry output. When enabled, the Ripple Carry outputs a positive pulse when the counter overflows.
This pulse is approximately equal in duration to the high level portion of the QA outputs. The Ripple Carry
output is fed to successive cascaded stages to facilitate easy implementation of N-bit counters.
Features
High Speed Operation: tpd (Clock to Q) = 18 ns typ (CL = 50 pF)
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: VCC = 2 to 6 V
Low Input Current: 1 µA max

1 Page





HD74HC160 pdf, ピン配列
HD74HC160/HD74HC161/HD74HC162/HD74HC163
DC Characteristics
Item
Input voltage
Output voltage
Input current
Quiescent supply
current
Ta = 25°C
Ta = –40 to
+85°C
Symbol
VIH
VCC (V) Min Typ Max Min
2.0 1.5 — — 1.5
4.5 3.15 — — 3.15
Max
Unit
V
6.0 4.2 — — 4.2 —
VIL 2.0 — — 0.5 — 0.5 V
4.5 — — 1.35 — 1.35
6.0 — — 1.8 — 1.8
VOH 2.0 1.9 2.0 — 1.9 — V
4.5 4.4 4.5 — 4.4 —
6.0 5.9 6.0 — 5.9 —
4.5 4.18 — — 4.13 —
6.0 5.68 — — 5.63 —
VOL 2.0 — 0.0 0.1 — 0.1 V
4.5 — 0.0 0.1 — 0.1
6.0 — 0.0 0.1 — 0.1
4.5 — — 0.26 — 0.33
6.0 — — 0.26 — 0.33
Iin 6.0 — — ±0.1 — ±1.0 µA
ICC 6.0 — — 4.0 — 40 µA
Test Conditions
Vin = VIH or VIL IOH = –20 µA
IOH = –4 mA
IOH = –5.2 mA
Vin = VIH or VIL IOL = 20 µA
IOL = 4 mA
IOL = 5.2 mA
Vin = VCC or GND
Vin = VCC or GND, Iout = 0 µA
3


3Pages


HD74HC160 電子部品, 半導体
HD74HC160/HD74HC161/HD74HC162/HD74HC163
Timing Diagram
HD74HC160/HD74HC162
Sequence illustrated in waveforms.
1. Clear outputs to zero.
2. Preset to BCD seven.
3. Count to eight, nine, zero, one, two and three.
4. Inhibit
Clear(HC160)
Clear(HC162)
Load
A
Data B
Inputs C
D
Clock(HC160)
Clock(HC162)
Enable P
Count
Enables Enable T
QA
QB
Outputs
QC
QD
Ripple
Carry
Output
(Asynchronous)
(Synchronous)
78 9
Clear Load
01 2
Count
3
Inhibit
6

6 Page



ページ 合計 : 16 ページ
 
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[ HD74HC160 データシート.PDF ]


データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。


共有リンク

Link :


部品番号部品説明メーカ
HD74HC160

Synchronous Decade/4-bit Binary/Counter(Direct Clear/Synchronous Clear)

Hitachi Semiconductor
Hitachi Semiconductor
HD74HC161

Synchronous Decade/4-bit Binary/Counter(Direct Clear/Synchronous Clear)

Hitachi Semiconductor
Hitachi Semiconductor
HD74HC162

Synchronous Decade/4-bit Binary/Counter(Direct Clear/Synchronous Clear)

Hitachi Semiconductor
Hitachi Semiconductor
HD74HC163

Synchronous Decade/4-bit Binary/Counter(Direct Clear/Synchronous Clear)

Hitachi Semiconductor
Hitachi Semiconductor


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