首页 > 集成电路 IC > SN74LS192N

SN74LS192N

4-bit BCD up/down counter, separate clocks, async load/clear, carry/borrow, LS TTL, PDIP-16

3000

有效库存

转到查询

Image for reference only

制造商零件：

SN74LS192N

包装：

PDIP-16 (19.3 x 6.35 x 4.57mm, 2.54mm pitch, through-hole)

品牌：

产品类别：

集成电路 IC, 接口集成电路

您可能感兴趣的其他建议.

SII9396SCNUC-BAR

IS43TR16256BL-125KBLI

说明

产品概览

The SN74LS192N from Texas Instruments is a synchronous 4-bit BCD up/down counter with separate up and down clock inputs, asynchronous clear, and parallel load — the most versatile BCD counter in the LS family in a 16-pin PDIP package.

主要规格

功能	Synchronous 4-bit BCD up/down counter
逻辑家族	LS (Low-power Schottky)
电源电压	4.75V to 5.25V
Count Range	0-9 (BCD decade)
Clock Inputs	UP (count up), DOWN (count down), separate, negative-edge
Parallel Load	Asynchronous, active-LOW (LOAD)
Clear	Asynchronous, active-HIGH (CLR)
Carry/Borrow	CO (carry out, active-LOW), BO (borrow out, active-LOW)
Max Clock Frequency	25MHz typical
工作温度	0°C to +70°C
包装	PDIP-16 (19.3 x 6.35mm)

特点

Separate UP and DOWN clock inputs
Synchronous counting in both directions
Asynchronous parallel load (preset any BCD value)
Asynchronous clear (CLR, active-HIGH)
Carry and borrow outputs for cascading
BCD count sequence: 0-9 up, 9-0 down

应用

Up/down decade counters
Digital position encoders
Score counters
Frequency synthesizers

产品介绍：SN74LS192N 产品介绍

The SN74LS192N from Texas Instruments is a synchronous 4-bit BCD up/down counter with separate UP and DOWN clock inputs. This dual-clock design means the counter direction is determined by which clock input receives pulses: pulses on UP count 0→1→2→…→9→0; pulses on DOWN count 9→8→7→…→0→9. The unused clock input must be held HIGH during counting. The 74192 is the most feature-rich BCD counter: it has asynchronous parallel load (LOAD=LOW loads D0-D3 into the counter regardless of clocks), asynchronous clear (CLR=HIGH resets to 0), and carry/borrow outputs for cascading. CO goes LOW when counting UP and the count reaches 9 (carry to next stage); BO goes LOW when counting DOWN and the count reaches 0 (borrow from next stage). For cascading: CO → UP of next stage; BO → DOWN of next stage. The 74193 is the binary (0-15) version with identical pinout. The N suffix denotes the PDIP-16 package.

工作原理：SN74LS192N 工作原理

The SN74LS192N counts in BCD (0-9) on the negative edge of either the UP or DOWN clock. Counting UP: pulses on UP, DOWN must be HIGH. Sequence: 0→1→2→3→4→5→6→7→8→9→0 (carry). At 9, CO goes LOW on the next UP clock (carry to next decade). Counting DOWN: pulses on DOWN, UP must be HIGH. Sequence: 9→8→7→6→5→4→3→2→1→0→9 (borrow). At 0, BO goes LOW on the next DOWN clock (borrow from next decade). Parallel load: LOAD=LOW loads D0-D3 into the counter asynchronously (overrides clocks and counting). CLR=HIGH resets Q0-Q3 to 0 asynchronously (overrides LOAD, clocks). Priority: CLR > LOAD > clocks. For multi-decade counting: CO of units → UP of tens; BO of units → DOWN of tens; both clock inputs of tens are independently driven by the carry/borrow of the units stage. The 74192 counts in BCD; the 74193 (same pinout) counts in binary (0-15). Both share the same dual-clock, load, clear, carry/borrow architecture.

引脚说明：SN74LS192N 引脚定义和功能

针脚	名称	类型	说明
1	DOWN	输入	Count-down clock (negative edge, UP must be HIGH)
2	Q1	输出	Output bit 1
3	Q0	输出	Output bit 0 (LSB)
4	BO	输出	Borrow output (active-LOW; LOW at count=0 with DOWN clock)
5	CO	输出	Carry output (active-LOW; LOW at count=9 with UP clock)
6	Q3	输出	Output bit 3 (MSB)
7	Q2	输出	Output bit 2
8	接地	电源	地面
9	D2	输入	Parallel data input bit 2
10	D3	输入	Parallel data input bit 3 (MSB)
11	D0	输入	Parallel data input bit 0 (LSB)
12	D1	输入	Parallel data input bit 1
13	LOAD	输入	Parallel load enable (active-LOW, loads D0-D3)
14	CLR	输入	Asynchronous clear (active-HIGH, resets to 0)
15	UP	输入	Count-up clock (negative edge, DOWN must be HIGH)
16	VCC	电源	Supply (5V)

Application Scenarios:In which products and applications isSN74LS192N 中古

2-Digit Score Counter: Two 74192s; units CO → tens UP; units BO → tens DOWN; UP button increments; DOWN button decrements; score 00-99
Presettable Counter: D0-D3 set to desired start value; pulse LOAD; counter starts from preset value; count up or down from preset
Position Encoder: Rotary encoder generates UP/DOWN pulses; 74192 tracks position (0-9); display on 7-segment via CD4511
Frequency Synthesizer: Thumbwheel switches → D0-D3; LOAD presets divider ratio; counter counts down to 0; BO reloads preset; programmable divider

Alternative Models:What chips are recommended as replacements for SN74LS192N

模型	制造商	主要区别	包装	Supply
74LS192N	TI/Nexperia	Original TTL version with 5V-only supply, typical propagation delay 10-15ns	DIP-16	5V TTL
74LS192D	TI/Nexperia	Surface-mount SOIC version of LS with identical logic function	SOIC-16	5V TTL
74HC192D	TI/Nexperia	CMOS version with wide 2-6V supply range, lower power consumption and higher noise immunity	SOIC-16	2-6V CMOS
74HC192N	TI/Nexperia	Through-hole DIP version of HC family for prototyping and repair	DIP-16	2-6V CMOS
74HCT192D	TI/Nexperia	CMOS with TTL-compatible input levels, ideal for mixing with LS devices at 5V	SOIC-16	4.5-5.5V TTL-in
74HCT192N	TI/Nexperia	Through-hole DIP version of HCT family for prototyping and repair	DIP-16	4.5-5.5V TTL-in

The 74192 is a 4-Bit Decade Counter (BCD, Up/Down). Family variants span from the original LS TTL (5V only) to modern LVC/AUP (down to 0.8V). HC and HCT versions offer 2-6V CMOS operation with HCT providing TTL-compatible input thresholds for mixed 5V systems. CD4000-series equivalents offer the widest 3-18V supply range at the cost of lower switching speed. DIP packages (N suffix) are through-hole; SOIC (D suffix) and TSSOP are surface-mount.

SN74LS192N

有效库存

制造商零件：

包装：

品牌：

产品类别：

您可能感兴趣的其他建议.

说明

产品概览

主要规格

特点

应用

推荐部件

有库存：

有库存：

有库存：

有库存：

有库存：

有库存：

有效库存

制造商零件：

包装：

品牌：

产品类别：

您可能感兴趣的其他建议.

说明

产品概览

主要规格

特点

应用

推荐部件

有库存：

有库存：

有库存：

有库存：

有库存：

有库存：

质量保证

1. Authorized & Genuine Sourcing Promise

2. Strict Full-batch Quality Inspection

3. Industry Standard Compliance

4. Professional Reliability Control

5. Traceability Management System

6. After-sales Quality Guarantee

联系我们

发货与付款

1. Payment Terms

2. Shipping & Delivery

3. General Order Rules & Notes

4. Customs & Liability Statement

5. Local Pickup in Shenzhen

Contact Information

服务与包装

Core Services

1. One-stop Sourcing & BOM Support

2. Genuine Product Guarantee & Full-process Quality Inspection

3. Fast Quotation & Order Processing

4. Professional Technical Support

5. Sourcing for Special Components

6. Global Logistics & Document Services

Professional Packaging Standards

1. General Packaging Specifications

2. Classified Professional Packaging

3. Custom Packaging Services

Contact Information

Online Inquiry Form

公司名称

工业