| 数据搜索系统,热门电子元器件搜索 |
|
M54HC390 数据表(PDF) 1 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
M54HC390 数据表(HTML) 1 Page - STMicroelectronics |
|
1 / 13 page ![]() M54HC390 M74HC390 February 1993 DUAL DECADE COUNTER B1R (Plastic Package) ORDER CODES : M54HC390F1R M74HC390M1R M74HC390B1R M74HC390C1R F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) PIN CONNECTIONS (top view) NC = No Inter- nal Con- DESCRIPTION . HIGH SPEED fMAX = 84 MHz (TYP.) AT VCC =5 V . LOW POWER DISSIPATION ICC =4 µA (MAX.) AT TA =25 °C . HIGH NOISE IMMUNITY VNIH =VNIL =28 % VCC (MIN.) . OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS . SYMMETRICAL OUTPUT IMPEDANCE |IOH|= IOL = 4 mA (MIN.) . BALANCED PROPAGATION DELAYS tPLH =tPHL . WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V . PIN AND FUNCTION COMPATIBLE WITH 54/74LS390 The M54/74HC390 is a high speed CMOS DUAL DECADE COUNTER fabricated in silicon gate C 2MOS technology. It has the same high speed per- formance of LSTTL combined with true CMOS low power consumption. This dual decade counter contains two independent ripple carry counters. Each counter is composed of a divide-by-two and divide-by-five counter. The divide-by-two and divide-by-five counters can be cascaded to form dual decade, dual biquinary, or various combinations up to a single divide-by-100 counter. Each 4-bit counter is incremented on the high to low transition (negative edge) of the clock input, and each has an independent clear input. When clear is set low all four bits of each counter are set to low. This enables count truncation and allows the im- plementation of divide-by-N counter configurations. All inputs are equipped with protection circuits against static discharge and transient excess volt- age. 1/13 |
类似零件编号 - M54HC390 |
|
类似说明 - M54HC390 |
|
|
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |