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PDF M74HC244 Data sheet ( Hoja de datos )
| Número de pieza | M74HC244 | |
| Descripción | OCTAL BUS BUFFER | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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M74HC244
OCTAL BUS BUFFER
WITH 3 STATE OUTPUTS (NON INVERTED)
s HIGH SPEED:
tPD = 10ns (TYP.) at VCC = 6V
s LOW POWER DISSIPATION:
ICC = 4µA(MAX.) at TA=25°C
s HIGH NOISE IMMUNITY:
)VNIH = VNIL = 28 % VCC (MIN.)
t(ss SYMMETRICAL OUTPUT IMPEDANCE:
c|IOH| = IOL = 6mA (MIN)
us BALANCED PROPAGATION DELAYS:
rodtPLH ≅ tPHL
s WIDE OPERATING VOLTAGE RANGE:
PVCC (OPR) = 2V to 6V
tes PIN AND FUNCTION COMPATIBLE WITH
le74 SERIES 244
soDESCRIPTION
bThe 74HC244 is an advanced high-speed CMOS
OOCTAL BUS BUFFER (3-STATE) fabricated with
-silicon gate C2MOS technology.
t(s)G control input governs four BUS BUFFERs.
DIP
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
TSSOP
M74HC244B1R
M74HC244M1R
T&R
M74HC244RM13TR
M74HC244TTR
This device is designed to be used with 3 state
memory address drivers, etc.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
Obsolete ProducPIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
1/10
1 page  
TEST CIRCUIT
M74HC244
uct(s)TEST
rodtPLH, tPHL
PtPZL, tPLZ
tetPZH, tPHZ
leCL = 50pF/150pF or equivalent (includes jig and probe capacitance)
R1 = 1KΩ or equivalent
oRT = ZOUT of pulse generator (typically 50Ω)
Obsolete Product(s) - ObsWAVEFORM 1: PROPAGATION DELAY TIMES (f=1MHz; 50% duty cycle)
SWITCH
Open
VCC
GND
5/10
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet M74HC244.PDF ] | |
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