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參數(shù)資料
| 型號： | M54HC299M1R |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | HC323 8BITPIPOSHIFTREGISTERWITHSYNCHRONOUS CLEAR HC299 8BITPIPOSHIFTREGISTERWITHASYNCHRONOUS CLEAR |
| 中文描述： | HC323 8BITPIPOSHIFTREGISTERWITHSYNCHRONOUS清除HC299 8BITPIPOSHIFTREGISTERWITHASYNCHRONOUS清除 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大小： | 306K |
| 代理商： | M54HC299M1R |
M54/74HC299
M54/74HC323
October 1993
HC3238BITPIPOSHIFTREGISTERWITHSYNCHRONOUS CLEAR
.
HIGH SPEED
f
MAX
= 42 MHz (TYP.) AT V
CC
= 5V
.
LOWPOWER DISSIPATION
I
CC
= 4
μ
A(MAX.) AT T
A
= 25
°
C
.
HIGH NOISE IMMUNITY
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS FOR QA’ TO QH’
15 LSTTL LOADS FOR QA TO QH
.
SYMMETRICAL OUTPUT IMPEDANCE
I
OH
= I
OL
= 6 mA (MIN.) FOR Q
A
, TO Q
H
,
I
OH
= I
OL
= 4 mA (MIN.) FOR Q
A
, TO Q
H
.
BALANCEDPROPAGATION DELAYS
t
PLH
= t
PHL
.
WIDE OPERATING VOLTAGE RANGE
V
CC
(OPR) = 2 V TO6 V
.
PIN ANDFUNCTION COMPATIBLE
WITH 54/74LS299
HC2998BITPIPOSHIFTREGISTERWITHASYNCHRONOUSCLEAR
B1R
(Plastic Package)
ORDER CODES :
M54HCXXXF1R
M74HCXXXB1R
M74HCXXXM1R
M74HCXXXC1R
F1R
(CeramicPackage)
M1R
(MicroPackage)
C1R
(Chip Carrier)
PIN CONNECTIONS
(top view)
NC =
No Internal
Connection
DESCRIPTION
The M54/74HC299/323 are high speed CMOS 8-
BIT PIPO SHIFT REGISTERS (3-STATE) fabri-
cated with silicon gate C
2
MOS technology.
They achieve the high speed operation similar to
equivalent LSTTL while maintaining the CMOS low
powerconsumption.
These devices have four modes (HOLD, SHIFT
LEFT,SHIFTRIGHTandLOADDATA). Eachmode
is chosen by two function select inputs (S0, S1).
When one orboth enable inputs, (G1, G2) are high,
the eight input/output terminals are in the high-
impedance state ; however sequential operation or
clearing of the register is not affected.
Clear function on the HC299 is asynchronous to
CLOCK,while theHC323iscleared synchronous to
clock.
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
1/15
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