Os motores de busca de Datasheet de Componentes eletrônicos |
|
74ABT843N Folha de dados(PDF) 2 Page - NXP Semiconductors |
|
74ABT843N Folha de dados(HTML) 2 Page - NXP Semiconductors |
2 / 14 page Philips Semiconductors Product specification 74ABT843 9-bit bus interface latch with set and reset (3-State) 2 1998 Jan 16 853-1620 18864 FEATURES • High speed parallel latches • Extra data width for wide address/data paths or buses carrying parity • Ideal where high speed, light loading, or increased fan-in are required with MOS microprocessors • Slim DIP 300 mil package • Broadside pinout • Output capability: +64mA/–32mA • Latch-up protection exceeds 500mA per Jedec Std 17 • ESD protection exceeds 2000V per MIL STD 883 Method 3015 and 200V per Machine Model • Power-up 3-State • Power-up reset DESCRIPTION The 74ABT843 Bus interface latch is designed to eliminate the extra packages required to buffer existing registers and provide extra data width for wider data/address paths of buses carrying parity. The 74ABT843 consists of nine D-type latches with 3-State outputs. In addition to the LE and OE pins, it has a Master Reset (MR) pin and Preset (PRE) pin. These pins are ideal for parity bus interfacing in high performance systems. When MR is Low, the outputs are Low if OE is Low. When MR is High, data can be entered into the latch. When PRE is Low, the outputs are High, if OE is Low. PRE overrides MR. QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS Tamb = 25°C; GND = 0V TYPICAL UNIT tPLH tPHL Propagation delay Dn to Qn CL = 50pF; VCC = 5V 5.0 ns CIN Input capacitance VI = 0V or VCC 4 pF COUT Output capacitance Outputs disabled; VO = 0V or VCC 7 pF ICCZ Total supply current Outputs disabled; VCC = 5.5V 500 nA ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER 24-Pin Plastic DIP –40 °C to +85°C 74ABT843 N 74ABT843 N SOT222-1 24-Pin plastic SO –40 °C to +85°C 74ABT843 D 74ABT843 D SOT137-1 24-Pin Plastic SSOP Type II –40 °C to +85°C 74ABT843 DB 74ABT843 DB SOT340-1 24-Pin Plastic TSSOP Type I –40 °C to +85°C 74ABT843 PW 74ABT843PW DH SOT355-1 PIN CONFIGURATION 1 2 3 4 5 6 7 8 9 10 15 16 17 18 19 20 21 22 23 24 OE D0 D1 D2 D3 D4 D5 D6 D7 Q7 D8 Q6 Q5 Q4 Q3 Q2 Q1 Q0 VCC Q8 11 14 MR PRE 12 13 GND LE TOP VIEW SA00250 PIN DESCRIPTION PIN NUMBER SYMBOL FUNCTION 1 OE Output enable input (active-Low) 2, 3, 4, 5, 6, 7, 8, 9, 10 D0-D8 Data inputs 23, 22, 21, 20, 19,18, 17, 16, 15 Q0-Q8 Data outputs 11 MR Master reset input (active-Low) 13 LE Latch enable input (active rising edge) 14 PRE Preset input (active-Low) 12 GND Ground (0V) 24 VCC Positive supply voltage |
Nº de peça semelhante - 74ABT843N |
|
Descrição semelhante - 74ABT843N |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes 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 |