- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄24646 > 933637620112 (NXP SEMICONDUCTORS) 4000/14000/40000 SERIES, PRESCALER, PDIP18 PDF資料下載
參數(shù)資料
| 型號： | 933637620112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 諧振器 |
| 英文描述： | 4000/14000/40000 SERIES, PRESCALER, PDIP18 |
| 封裝： | PLASTIC, SOT-102-3, DIP-18 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 115K |
| 代理商： | 933637620112 |
January 1995
4
Philips Semiconductors
Product specication
Universal timer module
HEF4753B
LSI
FUNCTIONAL DESCRIPTION
Clock divider and decoder
The clock signal at input CP is, at its original frequency, the
system clock, but it also drives the programmable counter.
The counter input frequency can be predivided by the
factors 1/16, 1/256 and 1/4096, depending on the logic
state of inputs W and X (according to the function tables
above).
8-bit programmable counter
The 8 inputs A to H are the set inputs of the 8 counter
flip-flops. The setting is triggered by an edge of the input
signal (at input IN) depending on of the chosen mode.
Event ip-ops, synchronization and edge-detection
The event flip-flops are used to recognize the positive
and/or negative edge of the input signal at IN.
Parts of the flip-flops are used together with the
programmable 8-bit counter as a retriggerable mono-flop,
which defines the time scaling for event recognition.
The input IN is synchronized by the clock signal CP.
Mode switch and output multiplexer
This function switches the chosen output to the output
(OUT) and gives the mode of which the edge at input IN
has to be detected. The inputs Z, Y and LFC give 7 modes
+1, that means in mode ‘Digital Filter’ the input LFC can be
HIGH or LOW.
OPERATING MODES
The circuit has 6 operating modes which are activated by
the logic state of inputs LFC, Y and Z. An extra mode is
possible by using two circuits which are connected such so
they function as a digital band-filter.
1. Counter mode (LFC = LOW; Y = LOW; Z = HIGH)
In this mode the output OUT should be connected to input
IN. If not, only one counter cycle starts after a transition at
input IN (see Fig.3 and note 1.).
Fig.3
Timing diagram for counter mode; t1 = delay until set of 8-bit counter; t2 = delay to set 8-bit counter;
t3 = predefined delay by programming.
A
B
C
D
E
F
G
H
W
X
LFC
Y
Z
HH
L
H
L
H
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 933637660652 | 4000/14000/40000 SERIES, OCTAL 1-BIT TRANSCEIVER, TRUE OUTPUT, PDIP20 |
| 933727300652 | 4000/14000/40000 SERIES, OCTAL 1-BIT TRANSCEIVER, TRUE OUTPUT, CDIP20 |
| 933638690652 | 4000/14000/40000 SERIES, OCTAL 1-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 933567190652 | 4000/14000/40000 SERIES, OCTAL 1-BIT TRANSCEIVER, TRUE OUTPUT, PDIP20 |
| 933640900215 | 50 mA, 250 V, PNP, Si, SMALL SIGNAL TRANSISTOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 933642100 | 制造商:Hirschmann Electronics GmbH & Co Kg 功能描述:GML 24V black socket bridge rectifier |
| 9-336513-1 | 功能描述:以太網(wǎng)和電信連接器 MOD PLUG BOOT 8W WHITE DIAM MAX 6,5 RoHS:否 制造商:Pulse 產(chǎn)品:Modular Jacks 性能類別: USOC 代碼:RJ45 位置/觸點數(shù)量: 安裝風(fēng)格:Through Hole 端口數(shù)量:1 x 1 型式:Female 屏蔽: 電流額定值: 電壓額定值: 觸點電鍍: 外殼材料:Thermoplastic IP 等級: |
| 9-336513-2 | 功能描述:以太網(wǎng)和電信連接器 MOD PLUG BOOT 8W GREY DIAM MAX 6,5 RoHS:否 制造商:Pulse 產(chǎn)品:Modular Jacks 性能類別: USOC 代碼:RJ45 位置/觸點數(shù)量: 安裝風(fēng)格:Through Hole 端口數(shù)量:1 x 1 型式:Female 屏蔽: 電流額定值: 電壓額定值: 觸點電鍍: 外殼材料:Thermoplastic IP 等級: |
| 9-336513-3 | 功能描述:以太網(wǎng)和電信連接器 MOD PLUG BOOT 8W RED DIAM MAX 6 5 RoHS:否 制造商:Pulse 產(chǎn)品:Modular Jacks 性能類別: USOC 代碼:RJ45 位置/觸點數(shù)量: 安裝風(fēng)格:Through Hole 端口數(shù)量:1 x 1 型式:Female 屏蔽: 電流額定值: 電壓額定值: 觸點電鍍: 外殼材料:Thermoplastic IP 等級: |
| 9-336513-4 | 功能描述:以太網(wǎng)和電信連接器 MOD PLUG BOOT 8W BLUE DIAM MAX 6 5 RoHS:否 制造商:Pulse 產(chǎn)品:Modular Jacks 性能類別: USOC 代碼:RJ45 位置/觸點數(shù)量: 安裝風(fēng)格:Through Hole 端口數(shù)量:1 x 1 型式:Female 屏蔽: 電流額定值: 電壓額定值: 觸點電鍍: 外殼材料:Thermoplastic IP 等級: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。