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參數(shù)資料
| 型號(hào)： | M74HC690C1R |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Low-Voltage Adjustable Precision Shunt Regulator 3-SOT-89 -40 to 85 |
| 中文描述： | HC691/693 4位二進(jìn)制計(jì)數(shù)器/注冊(cè)3態(tài)HC690/692十進(jìn)制計(jì)數(shù)器/寄存器三態(tài) |
| 文件頁數(shù)： | 1/23頁 |
| 文件大?。?/td> | 433K |
| 代理商： | M74HC690C1R |
M54/74HC690/691
M54/74HC692/693
March 1993
HC691/693 4 BIT BINARY COUNTER/REGISTER (3-STATE)
.
HIGH SPEED
f
MAX
= 50 MHz (TYP.) at V
CC
= 5 V
.
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
15 LSTTL LOADS (forQ
A
to Q
D
)
10 LSTTL LOADS (forRCO)
.
SYMMETRICAL OUTPUT IMPEDANCE
I
OH
= I
OL
= 6 mA (MIN.) (for Q
A
toQ
D
)
I
OH
= I
OL
= 4 mA (MIN.) (for RCO)
.
BALANCEDPROPAGATION DELAYS
t
PLH
= t
PHL
.
WIDE OPERATING VOLTAGE RANGE
V
CC
(OPR) = 2 V to 6 V
.
PIN ANDFUNCTION COMPATIBLE
WITH LSTTL 54/74LS690/691
HC690/692 DECADE COUNTER/REGISTER (3-STATE)
B1R
(Plastic Package)
ORDER CODES :
M54HCXXXF1R
M74HCXXXB1R
M74HCXXXM1R
M74HCXXXC1R
F1R
(CeramicPackage)
M1R
(MicroPackage)
C1R
(Chip Carrier)
PIN CONNECTIONS
(top view)
NC =
No Internal
Connection
The HC690/691/692/693 are high speed CMOS
COUNTER/REGISTER fabricated in silicon gate
C
2
MOS technology.
They have the same high speed performance of
LSTTL combined with true CMOS low power con-
sumption.
The internal circuit is composed of 3 stages includ-
ing buffer output, which offers high noise immunity
and stableoutput.Thesedevices incorporate a syn-
chronous counter, four-bit D-type register, and
quadruple two-line to one-line multiplexers with
three-state outputs in a single 20-pin package. The
counter can be programmed from the data inputs
and have enablePandenable Tinputs anda ripple-
carry output for easy expansion.
ter/counter select input, R/C, selects the counter
when low or the register when high for the three-
state outputs, QA, QB, QC, and QD.
If the LOADinput (LOAD)isheld ”L” DATAinput(A-
D) are loaded in to the internal counter at positive
edge of counter clock input (CCK). In the counter
mode, internal counter counts up at the positive of
the counter clock.If thecounter clear input (CCLR)
isheld”L”,theinternalcounteriscleared(synchron-
ously to the counter clock for HC692/HC693, and
asynchronously for HC690/HC691). The internal
The regis-
DESCRIPTION
1/23
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M74HC690F1R | Low-Voltage Adjustable Precision Shunt Regulator 3-SOT-89 -40 to 85 |
| M74HC690M1R | Low-Voltage Adjustable Precision Shunt Regulator 5-SOT-23 -40 to 125 |
| M74HC690B1R | HC691/693 4 BIT BINARY COUNTER/REGISTER 3-STATE HC690/692 DECADE COUNTER/REGISTER 3-STATE |
| M74HC699C1R | HC697/699 U/D 4 BIT BINARY COUNTER/REGISTER 3-STATE HC696/698 U/D DECADE COUNTER/REGISTER 3-STATE |
| M74HC699B1R | HC697/699 U/D 4 BIT BINARY COUNTER/REGISTER 3-STATE HC696/698 U/D DECADE COUNTER/REGISTER 3-STATE |
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