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  • SN74LV4040A 12 位异步二进制计数器

    • ZHCSSI0K April   1999  – September 2024 SN74LV4040A

      PRODMIX  

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  • SN74LV4040A 12 位异步二进制计数器
  1.   1
  2. 1 特性
  3. 2 说明
  4. 3 Pin Configuration and Functions
  5. 4 Specifications
    1. 4.1  Absolute Maximum Ratings
    2. 4.2  ESD Ratings
    3. 4.3  Recommended Operating Conditions
    4. 4.4  Thermal Information
    5. 4.5  Electrical Characteristics
    6. 4.6  Timing Requirements, VCC = 2.5 V ± 0.2 V
    7. 4.7  Timing Requirements, VCC = 3.3 V ± 0.3 V
    8. 4.8  Timing Requirements, VCC = 5 V ± 0.5 V
    9. 4.9  Switching Characteristics, VCC = 2.5 V ± 0.2 V
    10. 4.10 Switching Characteristics, VCC = 3.3 V ± 0.3 V
    11. 4.11 Switching Characteristics, VCC = 5 V ± 0.5 V
    12. 4.12 Noise Characteristics
    13. 4.13 Operating Characteristics
  6. 5 Parameter Measurement Information
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Power Supply Recommendations
    2. 7.2 Layout
      1. 7.2.1 Layout Guidelines
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support (Analog)
      1. 8.1.1 Related Documentation
    2. 8.2 接收文档更新通知
    3. 8.3 支持资源
    4. 8.4 Trademarks
    5. 8.5 静电放电警告
    6. 8.6 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
  12. 重要声明
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Data Sheet

SN74LV4040A 12 位异步二进制计数器

本资源的原文使用英文撰写。 为方便起见，TI 提供了译文；由于翻译过程中可能使用了自动化工具，TI 不保证译文的准确性。 为确认准确性，请务必访问 ti.com 参考最新的英文版本（控制文档）。

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1 特性

  • 2V 至 5.5V VCC 运行
  • VOLP（输出接地反弹）典型值小于 0.8V（VCC = 3.3V、TA = 25°C 时）
  • VOHV（输出 VOH 下冲）典型值为 2.3V（VCC = 3.3V、TA = 25°C 时）
  • 所有端口上均支持混合模式电压运行
  • 高开关输出电压比
  • 低开关间串扰
  • 单独的开关控制
  • 极低输入电流
  • Ioff 支持局部省电模式运行
  • 闩锁性能超过 100mA，符合 JESD 78 II 类规范的要求

2 说明

’LV4040A 器件是 12 位异步二进制计数器，可从外部获得所有级的输出。

封装信息
器件型号 封装(1) 封装尺寸(2) 本体尺寸(3)
SN74LV4040A N（PDIP，16） 19.3mm x 9.4mm 19.3mm x 6.35mm
D（SOIC，16） 9.9mm x 6mm 9.9mm x 3.9mm
NS（SOP，16） 10.2mm x 7.8mm 10.2mm x 5.3mm
DB（SSOP，16） 6.2mm x 7.8mm 6.2mm x 5.3mm
PW（TSSOP，16） 5mm x 6.4mm 5mm x 4.4mm
DGV（TVSOP，16） 3.6mm x 6.4mm 3.6mm x 4.4mm
RGY（VQFN，16） 4mm x 3.5mm 4mm x 3.5mm
(1) 如需了解所有可用封装，请参阅数据表末尾的可订购产品附录。
(2) 封装尺寸（长 × 宽）为标称值，并包括引脚（如适用）。
(3) 本体尺寸（长 × 宽）为标称值，不包括引脚。
SN74LV4040A 逻辑图（正逻辑）逻辑图（正逻辑）

3 Pin Configuration and Functions

SN74LV4040A SN74LV4040A D, DB, DGV, N, NS, or PW Package (Top View)Figure 3-1 SN74LV4040A D, DB, DGV, N, NS, or PW Package (Top View)
SN74LV4040A SN74LV4040A RGY Package (Top View)
A. NC - no internal connection
Figure 3-2 SN74LV4040A RGY Package (Top View)
PIN TYPE(1) DESCRIPTION
NAME NO.
QL 1 O QL output
QF 2 O QF output
QE 3 O QE output
QG 4 O QG output
QD 5 O QD output
QC 6 O QC output
QB 7 O QB output
GND 8 - Ground
QA 9 O QA output
CLK 10 I Clock, falling edge triggered
CLR 11 I Clear, active high
QI 12 O QI output
QH 13 O QH output
QJ 14 O QJ output
QK 15 O QK output
VCC 16 - Positive supply
(1) I = input, O = output

4 Specifications

4.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
VCC Supply voltage range -0.5 7 V
VI Input voltage range -0.5 7 V
VO Voltage range applied to any output in the high-impedance or power-off state -0.5 7 V
VO Output voltage range −0.5 V to VCC 0.5 V
IIK Input clamp current(2) (VI < 0) −20 mA
IOK Output clamp current(2) (VO < 0) ±50 mA
IO Continuous output current VO = 0 to VCC ±25 mA
Continuous current through VCC or GND ±50 mA
Tstg Storage temperature range -65 150 ℃
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

4.2 ESD Ratings

VALUE UNIT
V (ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-0011 ±2000 V
Charged device model (CDM), per JEDEC specification JESD22-C1012 ±1000
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

4.3 Recommended Operating Conditions

over recommended operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
VCC Supply voltage 2 5.5 V
VIH High-level input voltage VCC = 2 V 1.5 V
VCC = 2.3 V to 2.7 V VCC × 0.7
VCC = 3 V to 3.6 V VCC × 0.7
VCC = 4.5 V to 5.5 V VCC × 0.7
VIL Low-level input voltage VCC = 2 V 0.5 V
VCC = 2.3 V to 2.7 V VCC × 0.3
VCC = 3 V to 3.6 V VCC × 0.3
VCC = 4.5 V to 5.5 V VCC × 0.3
VI Input voltage 0 5.5 V
VO Output voltage 0 VCC V
IOH High-level output current VCC = 2 V − 50 µA
VCC = 2.3 V to 2.7 V − 2 mA
VCC = 3 V to 3.6 V − 6
VCC = 4.5 V to 5.5 V − 12
IOL Low-level output current VCC = 2 V 50
VCC = 2.3 V to 2.7 V 2
VCC = 3 V to 3.6 V 6
VCC = 4.5 V to 5.5 V 12
Δt/Δv Input transition rise/fall time VCC = 2.3 V to 2.7 V 200 ns
VCC = 3 V to 3.6 V 100
VCC = 4.5 V to 5.5 V 20
TA Operating free-air temperature -40 85 ℃
(1) All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

4.4 Thermal Information

THERMAL METRIC(1) D (SOIC) DB (SSOP) DGV (TVSOP) N (PDIP) NS (SOP) PW (TSSOP) RGY (VQFN) UNIT
16 PINS 16 PINS 16 PINS 16 PINS 16 PINS 16 PINS 16 PINS
RθJA Junction-to-ambient thermal resistance 99.5 82 120 67 64 122.3 39 °C/W
(1) For more information about traditional and new thermal metrics, see Semiconductor and IC Package Thermal Metrics.

4.5 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS VCC SN74LV4040A UNIT
MIN TYP MAX
VOH IOH = −50 µA 2 V to 5.5 V VCC − 0.1 V
IOH = −2 mA 2.3 V 2
IOH = −6 mA 3 V 2.48
IOH = −12 mA 4.5 V 3.8
VOL IOL = 50 µA 2 V to 5.5 V 0.1 V
IOL = 2 mA 2.3 V 0.4
IOL = 6 mA 3 V 0.44
IOL = 12 mA 4.5 V 0.55
II VI = 5.5 V or GND 0 to 5.5 V ±1 µA
ICC VI = VCC or GND, IO = 0 5.5 V 20 μA
Ioff VI or VO = 0 to 5.5 V 0 5 μA
Ci VI = VCC or GND 3.3 V 1.9 pF

 
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