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| 型号： | 74HCT4520DB,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 2/7页 |
| 文件大小： | 0K |
| 描述： | IC DUAL 4BIT SYNC BINARY 16-SSOP |
| 产品培训模块： | Logic Packages |
| 标准包装： | 78 |
| 系列： | 74HCT |
| 逻辑类型： | 二进制计数器 |
| 方向： | 上 |
| 元件数： | 2 |
| 每个元件的位元数： | 4 |
| 复位： | 异步 |
| 计时： | 同步 |
| 计数速率： | 58MHz |
| 触发器类型： | 正，负 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 16-SSOP |
| 包装： | 管件 |
| 其它名称： | 568-2880-5 935190110112 |
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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| 74HCT4520DB-T | 功能描述:计数器 IC DUAL 4-BIT SYNC BINARY COUNTER RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
| 74HCT4520D-Q100J | 功能描述:IC DUAL 4BIT SYNC BINARY 16SO 制造商:nxp semiconductors 系列:汽车级，AEC-Q100，74HCT 包装:带卷（TR） 零件状态:有效 逻辑类型:二进制计数器 方向:上 元件数:2 每元件位数:4 复位:异步 定时:同步 计数速率:58MHz 触发器类型:正，负 电压 - 电源:4.5 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商器件封装:16-SO 标准包装:2,500 |
| 74HCT4520D-T | 功能描述:计数器 IC DUAL 4-BIT SYNC BINARY COUNTER RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
| 74HCT4520N | 功能描述:计数器 IC DUAL 4-BIT SYNC BINARY COUNTER RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
| 74HCT4520N,112 | 功能描述:计数器 IC DUAL 4-BIT SYNC RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
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