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零件编号 | M74HC244 | ||
描述 | OCTAL BUS BUFFER | ||
制造商 | ST Microelectronics | ||
LOGO | |||
1 Page
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
M74HC244
SO-20 MECHANICAL DATA
DIM.
MIN.
mm.
TYP
MAX.
MIN.
inch
TYP.
MAX.
A 2.65 0.104
a1 0.1
0.2 0.004
0.008
a2 2.45 0.096
b 0.35
0.49 0.014
0.019
b1 0.23
0.32 0.009
0.012
t(s)C 0.5
0.020
c1 45° (typ.)
ucD 12.60
13.00
0.496
0.512
rodE 10.00
10.65
0.393
0.419
Pe 1.27
0.050
tee3 11.43
0.450
leF 7.40
7.60 0.291
0.300
soL 0.50
1.27 0.020
0.050
bM 0.75 0.029
Obsolete Product(s) - OS 8° (max.)
PO13L
8/10
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页数 | 10 页 | ||
下载 | [ M74HC244.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
M74HC240 | OCTAL BUS BUFFER | ST Microelectronics |
M74HC240HV | OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HC240HV: INVERTED - HC241HV NON INVERTED | ST Microelectronics |
M74HC241 | OCTAL BUS BUFFER | ST Microelectronics |
M74HC241HV | OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HC240HV: INVERTED - HC241HV NON INVERTED | ST Microelectronics |
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