|
|
PDF MC74AC823 Data sheet ( Hoja de datos )
| Número de pieza | MC74AC823 | |
| Descripción | 9-BIT REGISTER WITH 3-STATE OUTPUTS (Non-Inverting) | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MC74AC823 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
www.DataSheet4U.com
Product Preview
9ĆBit Register With 3ĆState
Outputs (NonĆInverting)
The MC74AC/ACT823 consists of nine D-type edge-triggered flip-flops. This
device has 3-state outputs for bus systems, organized in a broadside pinning. In
addition to the clock and output enabled pins, the buffered clock (CP) and buffered
Output Enable (OE) are common to all flip-flips. The flip-flops will store the state of
their individual D inputs that meet the setup and hold time requirements on the
LOW-to-HIGH CP transition. With OE LOW, the contents of the flip-flops are available
at the outputs. When OE is HIGH, the outputs go to the high impedance state.
Operation of the OE input does not affect the state of the flip-flops. The
MC74AC/ACT823 has Clear (CLR) and Clock Enable (EN) pins. These devices are
ideal for parity bus interfacing in high performance systems.
When CLR is LOW, and OE is LOW, the outputs are LOW. When CLR is HIGH,
data can be entered into the flip-flops. When EN is LOW, data on the inputs is
transferred to the outputs on the LOW-to-HIGH clock transition. When EN is HIGH,
the outputs do not change state, regardless of the data or clock input transitions.
• 3-State Outputs for Bus Interfacing
• Broad Side Pin Configuration
• ACT has TTL – Compatible Inputs
• High Speed Parallel Positive Edge-Triggered D-Type Flip-Flops
• High Performance Bus Interface Buffering for Busses Carrying Parity
• Outputs Source/Sink 24 mA
Pinout: 24-Lead Packages (Top View)
VCC O0 O1 O2 O3 O4 O5 O6 O7 O8 EN CP
24 23 22 21 20 19 18 17 16 15 14 13
MC74AC823
MC74ACT823
9-BIT REGISTER WITH
3-STATE OUTPUTS
24
1
N SUFFIX
CASE 724-03
PLASTIC PACKAGE
DW SUFFIX
CASE 751E-04
SOIC PACKAGE
PIN NAMES
1 2 3 4 5 6 7 8 9 10 11 12
OE1 D0 D1 D2 D3 D4 D5 D6 D7 D8 CLR GND
FUNCTION TABLE
D0 – D8
O0 – O8
OE
EN
CLR
CP
Data Inputs
Data Outputs
Output Enable
Clock Enable
Clear
Clock Input
Inputs
OE CLR EN
CP
Dn
Internal
Q
Outputs
O
Operating Mode
HXL ↑ L
HXL ↑H
HLXXX
L LXXX
L
H
L
L
Z High Z
Z High Z
Z Clear
L Clear
HHHXX
L HHX X
NC
NC
Z Hold
NC Hold
HHL ↑ L
HHL ↑H
LHL ↑ L
LHL ↑H
L
H
L
H
Z Load
Z Load
L Load
H Load
H = HIGH Voltage Level; L = LOW Voltage Level; X = Immaterial; Z = High Impedance State; ↑ = LOW-to-High Transition; NC = No Change
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.
DataSheet4 U .com
FACT DATA
5-1
1 page  
www.DataSheet4U.com
MC74AC823 MC74ACT823
AC CHARACTERISTICS
Symbol
Parameter
fmax
Maximum Clock
Frequency
tPLH
Propagation Delay
CP to Qn
tPHL
Propagation Delay
CP to Qn
tPHL
Propagation Delay
CLR to On
tPZH
Output Enable Time
OE to On
tPZL
Output Enable Time
OE to On
tPHZ
Output Disable Time
OE to On
tPLZ
Output Disable Time
OE to On
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
74AC
VCC*
(V)
TA = +25°C
CL = 50 pF
Min Typ Max
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
74AC
TA = –40°C
to +85°C
CL = 50 pF
Min Max
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
AC OPERATING REQUIREMENTS
Symbol
Parameter
ts
Set-up Time, HIGH or LOW
Dn to CP
th
Hold Time, HIGH or LOW
Dn to CP
ts
Set-up Time, HIGH or LOW
EN to CP
th
Hold Time, HIGH or LOW
EN to CP
tw
CP Pulse Width
HIGH or LOW
tw CLR Pulse Width, LOW
trec
CLR to CP
Recovery Time
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
VCC*
(V)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
74AC
74AC
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Typ Guaranteed Minimum
Unit
ns
ns
ns
ns
ns
ns
ns
Fig.
No.
Fig.
No.
DataSheet4 U .com
FACT DATA
5-5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MC74AC823.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MC74AC823 | 9-BIT REGISTER WITH 3-STATE OUTPUTS (Non-Inverting) | Motorola Semiconductors |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |