数据搜索系统,热门电子元器件搜索 |
|
74HC354 数据表(PDF) 2 Page - NXP Semiconductors |
|
74HC354 数据表(HTML) 2 Page - NXP Semiconductors |
2 / 14 page December 1990 2 Philips Semiconductors Product specification 8-input multiplexer/register with transparent latches; 3-state 74HC/HCT354 FEATURES • Transparent data latches • Transparent address latch • Easily expanding • Complementary outputs • Output capability: bus driver • ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT354 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT354 data selectors/multiplexers contain full on-chip binary decoding, to select one-of-eight data sources. The data select address is stored in transparent latches that are enabled by a LOW on the latch enable input (LE). The transparent 8-bit data latches are enabled when the active LOW data enable input (E) is LOW. When the output enable input OE1 = HIGH, OE2 = HIGH or OE3 = LOW, the outputs go to the high impedance OFF-state. Operation of these output enable inputs does not affect the state of the latches. 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 µW): 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 CL = 15 pF; VCC =5 V Dn, E to Y, Y20 22 ns Sn, LE to Y, Y24 27 ns CI input capacitance 3.5 3.5 pF CPD power dissipation capacitance per latch notes 1 and 2 68 71 pF |
类似零件编号 - 74HC354 |
|
类似说明 - 74HC354 |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
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 | 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 |