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參數(shù)資料
| 型號(hào)： | 74HCT4520D,118 |
| 廠商： | NXP Semiconductors |
| 文件頁(yè)數(shù)： | 2/7頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DUAL 4BIT SYNC BINARY 16SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Logic Packages |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | 74HCT |
| 邏輯類型： | 二進(jìn)制計(jì)數(shù)器 |
| 方向： | 上 |
| 元件數(shù)： | 2 |
| 每個(gè)元件的位元數(shù)： | 4 |
| 復(fù)位： | 異步 |
| 計(jì)時(shí)： | 同步 |
| 計(jì)數(shù)速率： | 58MHz |
| 觸發(fā)器類型： | 正，負(fù) |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SO |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | 74HCT4520D-T 74HCT4520D-T-ND 933715380118 |
December 1990
2
Philips Semiconductors
Product specication
Dual 4-bit synchronous binary counter
74HC/HCT4520
FEATURES
Output capability: standard
ICC category: MSI
GENERAL DESCRIPTION
The 74HC/HCT4520 are high-speed Si-gate CMOS
devices and are pin compatible with the “4520” of the
“4000B” series. They are specified in compliance with
JEDEC standard no. 7A.
The 74HC/HCT4520 are dual 4-bit internally synchronous
binary counters with an active HIGH clock input (nCP0)
and an active LOW clock input (nCP1), buffered outputs
from all four bit positions (nQ0 to nQ3) and an active HIGH
overriding asynchronous master reset input (nMR).
The counter advances on either the LOW-to-HIGH
transition of nCP0 if nCP1 is HIGH or the HIGH-to-LOW
transition of nCP1 if nCP0 is LOW. Either nCP0 or nCP1
may be used as the clock input to the counter and the other
clock input may be used as a clock enable input. A HIGH
on nMR resets the counter (nQ0 to nQ3 = LOW)
independent of nCP0 and nCP1.
APPLICATIONS
Multistage synchronous counting
Multistage asynchronous counting
Frequency dividers
QUICK REFERENCE DATA
GND = 0 V; Tamb =25 °C; tr =tf = 6 ns
Notes
1. CPD is used to determine the dynamic power dissipation (PD in W):
PD =CPD × VCC2 × fi +∑ (CL × VCC2 × fo) where:
fi = input frequency in MHz
fo = output frequency in MHz
∑ (CL × VCC2 × fo) = sum of outputs
CL = output load capacitance in pF
VCC = supply voltage in V
2. For HC the condition is VI = GND to VCC
For HCT the condition is VI = GND to VCC 1.5 V
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”.
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
HC
HCT
tPHL/ tPLH
propagation delay nCP0, nCP1 to nQn
CL = 15 pF; VCC = 5 V 2424ns
tPHL
propagation delay nMR to nQn
13
ns
fmax
maximum clock frequency
68
64
MHz
CI
input capacitance
3.5
pF
CPD
power dissipation capacitance per counter
notes 1 and 2
29
24
pF
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參數(shù)描述 |
|---|---|
| 74HCT4520DB | 功能描述:計(jì)數(shù)器 IC DUAL 4-BIT SYNC BINARY COUNTER 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 |
| 74HCT4520DB,112 | 功能描述:計(jì)數(shù)器 IC DUAL 4-BIT SYNC 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 |
| 74HCT4520DB,118 | 功能描述:計(jì)數(shù)器 IC DUAL 4-BIT SYNC 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 |
| 74HCT4520DB-T | 功能描述:計(jì)數(shù)器 IC DUAL 4-BIT SYNC BINARY COUNTER 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 |
| 74HCT4520D-Q100J | 功能描述:IC DUAL 4BIT SYNC BINARY 16SO 制造商:nxp semiconductors 系列:汽車級(jí)，AEC-Q100，74HCT 包裝:帶卷（TR） 零件狀態(tài):有效 邏輯類型:二進(jìn)制計(jì)數(shù)器 方向:上 元件數(shù):2 每元件位數(shù):4 復(fù)位:異步 定時(shí):同步 計(jì)數(shù)速率:58MHz 觸發(fā)器類型:正，負(fù) 電壓 - 電源:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商器件封裝:16-SO 標(biāo)準(zhǔn)包裝:2,500 |
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