參數(shù)資料
型號(hào)： SN74ALS163BNE4
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 UP BINARY COUNTER, PDIP16
封裝： ROHS COMPLIANT, PLASTIC, DIP-16
文件頁數(shù)： 4/26頁
文件大?。?/td> 815K
代理商： SN74ALS163BNE4
SN54ALS161B, SN54ALS162B, SN54ALS163B, SN54AS161, SN54AS163
SN74ALS161B, SN74ALS163B, SN74AS161, SN74AS163
SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SDAS276A – DECEMBER 1994 – REVISED JULY 2000
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
n-bit synchronous counters
This application demonstrates how the ripple-mode carry circuit (see Figure 2) and the carry look-ahead circuit
(see Figure 3) can be used to implement a high-speed n-bit counter. The SN54ALS162B counts in BCD. The
’ALS161B, ’AS161, ’ALS163B, and ’AS163 devices count in binary. When additional stages are added, the fmax
decreases in Figure 2, but remains unchanged in Figure 3.
Figure 2. Ripple-Mode Carry Circuit
LOAD
C5/T,3,4+
QA
QB
QC
QD
CLR
A
B
C
D
CTR
CT=0
M1
G3
G4
RCO
CLK
ENP
ENT
3CT=MAX
1,5D
LOAD
C5/T,3,4+
QA
QB
QC
QD
CLR
A
B
C
D
CTR
CT=0
M1
G3
G4
RCO
CLK
ENP
ENT
3CT=MAX
1,5D
LOAD
C5/T,3,4+
QA
QB
QC
QD
CLR
A
B
C
D
CTR
CT=0
M1
G3
G4
RCO
CLK
ENP
ENT
3CT=MAX
1,5D
LOAD
C5/T,3,4+
QA
QB
QC
QD
CLR
A
B
C
D
CTR
CT=0
M1
G3
G4
RCO
CLK
ENP
ENT
3CT=MAX
1,5D
LSB
To More Significant Stages
Clear (L)
Count (H)
Disable (L)
Load (L)
Count (H)
Disable (L)
Clock
fmax = 1/(CLK to RCO tPLH) + (ENT to RCO tPLH) (N – 2) + (ENT tsu)
Figure 3. Carry Look-Ahead Circuit
LOAD
C5/T,3,4+
QA
QB
QC
QD
CLR
A
B
C
D
CTR
CT=0
M1
G3
G4
RCO
CLK
ENP
ENT
3CT=MAX
1,5D
LOAD
C5/T,3,4+
QA
QB
QC
QD
CLR
A
B
C
D
CTR
CT=0
M1
G3
G4
RCO
CLK
ENP
ENT
3CT=MAX
1,5D
LOAD
C5/T,3,4+
QA
QB
QC
QD
CLR
A
B
C
D
CTR
CT=0
M1
G3
G4
RCO
CLK
ENP
ENT
3CT=MAX
1,5D
LOAD
C5/T,3,4+
QA
QB
QC
QD
CLR
A
B
C
D
CTR
CT=0
M1
G3
G4
RCO
CLK
ENP
ENT
3CT=MAX
1,5D
LSB
To More Significant Stages
Clear (L)
Count (H)
Disable (L)
Load (L)
Clock
fmax = 1/(CLK to RCO tPLH) + (ENP tsu)
相關(guān)PDF資料
PDF描述
SN74AS161NSRG4 AS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16
SNJ54ALS161BJ ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDIP16
SN74AS169ADG4 AS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16
SN74AS169ADRE4 AS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16
SN74AS175BDRE4 AS SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74ALS163BNS 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:
SN74ALS163BNSR 功能描述:計(jì)數(shù)器 IC Synchronous 4-Bit 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
SN74ALS163BNSRE4 功能描述:計(jì)數(shù)器 IC Synchronous 4-Bit 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
SN74ALS163BNSRG4 功能描述:計(jì)數(shù)器 IC Synch 4B 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
SN74ALS1640AN 制造商:Rochester Electronics LLC 功能描述:- Bulk
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*