参数资料
| 型号： | 74HCT193N,652 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 1/30页 |
| 文件大小： | 0K |
| 描述： | IC COUNTER UP/DOWN SYNC 16-DIP |
| 产品培训模块： | Logic Packages |
| 标准包装： | 1,000 |
| 系列： | 74HCT |
| 逻辑类型： | 二进制计数器 |
| 方向： | 上，下 |
| 元件数： | 1 |
| 每个元件的位元数： | 4 |
| 复位： | 异步 |
| 计时： | 同步 |
| 计数速率： | 43MHz |
| 触发器类型： | 正边沿 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 16-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-DIP |
| 包装： | 管件 |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页
1.
General description
The 74HC193; 74HCT193 is a 4-bit synchronous binary up/down counter. Separate
up/down clocks, CPU and CPD respectively, simplify operation. The outputs change state
synchronously with the LOW-to-HIGH transition of either clock input. If the CPU clock is
pulsed while CPD is held HIGH, the device will count up. If the CPD clock is pulsed while
CPU is held HIGH, the device will count down. Only one clock input can be held HIGH at
any time to guarantee predictable behaviour. The device can be cleared at any time by the
asynchronous master reset input (MR); it may also be loaded in parallel by activating the
asynchronous parallel load input (PL). The terminal count up (TCU) and terminal count
down (TCD) outputs are normally HIGH. When the circuit has reached the maximum
count state of 15, the next HIGH-to-LOW transition of CPU will cause TCU to go LOW.
TCU will stay LOW until CPU goes HIGH again, duplicating the count up clock. Likewise,
the TCD output will go LOW when the circuit is in the zero state and the CPD goes LOW.
The terminal count outputs can be used as the clock input signals to the next higher order
circuit in a multistage counter, since they duplicate the clock waveforms. Multistage
counters will not be fully synchronous, since there is a slight delay time difference added
for each stage that is added. The counter may be preset by the asynchronous parallel
load capability of the circuit. Information present on the parallel data inputs (D0 to D3) is
loaded into the counter and appears on the outputs (Q0 to Q3) regardless of the
conditions of the clock inputs when the parallel load (PL) input is LOW. A HIGH level on
the master reset (MR) input will disable the parallel load gates, override both clock inputs
and set all outputs (Q0 to Q3) LOW. If one of the clock inputs is LOW during and after a
reset or load operation, the next LOW-to-HIGH transition of that clock will be interpreted
as a legitimate signal and will be counted. Inputs include clamp diodes. This enables the
use of current limiting resistors to interface inputs to voltages in excess of VCC.
2.
Features and benefits
Input levels:
For 74HC193: CMOS level
For 74HCT193: TTL level
Synchronous reversible 4-bit binary counting
Asynchronous parallel load
Asynchronous reset
Expandable without external logic
Complies with JEDEC standard no. 7A
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V.
74HC193; 74HCT193
Presettable synchronous 4-bit binary up/down counter
Rev. 4 — 24 June 2013
Product data sheet
相关PDF资料 |
PDF描述 |
|---|---|
| 74HCT160N,652 | IC SYNC BCD DECADE COUNT 16-DIP |
| 74HC4024D,653 | IC 7STAGE BINARY RIPPLE 14SOIC |
| 74HC4024D,652 | IC COUNTER 7STAGE BINARY 14SOIC |
| OSTV7117251 | TERM BLOCK PLUG 5.0MM 11POS |
| OSTV7115251 | TERM BLOCK PLUG 5.08MM 11POS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 74HCT193PW | 功能描述:计数器 IC 5V PRES SYNC 4B BNRY +/- COUNT 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 |
| 74HCT193PW,112 | 功能描述:计数器 IC 5V PRES SYNC 4B 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 |
| 74HCT193PW,118 | 功能描述:计数器移位寄存器 5V PRES SYNC 4B RoHS:否 制造商:Texas Instruments 计数器类型: 计数顺序:Serial to Serial/Parallel 电路数量:1 封装 / 箱体:SOIC-20 Wide 逻辑系列: 逻辑类型: 输入线路数量:1 输出类型:Open Drain 传播延迟时间:650 ns 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装:Reel |
| 74HCT193PW-Q100J | 制造商:NXP Semiconductors 功能描述:74HCT193PW-Q100/TSSOP16/REEL13 制造商:NXP Semiconductors 功能描述:74HCT193PW-Q100/TSSOP16/REEL13 - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC COUNTER U/D 4BIT BIN 16TSSOP |
| 74HCT193PW-T | 功能描述:计数器移位寄存器 5V PRES SYNC 4B BNRY +/- COUNT RoHS:否 制造商:Texas Instruments 计数器类型: 计数顺序:Serial to Serial/Parallel 电路数量:1 封装 / 箱体:SOIC-20 Wide 逻辑系列: 逻辑类型: 输入线路数量:1 输出类型:Open Drain 传播延迟时间:650 ns 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。