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參數(shù)資料
| 型號： | M74HC699C1R |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 通用總線功能 |
| 英文描述： | HC697/699 U/D 4 BIT BINARY COUNTER/REGISTER 3-STATE HC696/698 U/D DECADE COUNTER/REGISTER 3-STATE |
| 中文描述： | HC697/699上/下4位二進(jìn)制計(jì)數(shù)器/注冊3態(tài)HC696/698上/下十進(jìn)制計(jì)數(shù)器/寄存器三態(tài) |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 429K |
| 代理商： | M74HC699C1R |
M54/74HC696/697
M54/74HC698/699
March 1993
HC697/699 U/D 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
TO Q
D
|I
OH
| = I
OL
= 4 mA (MIN.) FOR RCO OUTPUT
.
BALANCEDPROPAGATION DELAYS
t
PLH
= t
PHL
.
WIDE OPERATING VOLTAGE RANGE
V
CC
(OPR) = 2 V TO6 V
.
PIN ANDFUNCTION COMPATIBLE
WITH LSTTL 54/74LS696/697/698/699
HC696/698 U/D 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
DESCRIPTION
The HC696/697 are high speed CMOS up/down
counters fabricated with silicon gate C
2
MOS
technology. They achieve the highspeed operation
similar to equivalent LSTTL while maintaining the
CMOS low power dissipation. The HC696/698 are
BCDDECADE COUNTER, and the HC697/699 are
register.
Theycount onthe positive edgeofthecounterclock
input (CCK) when selected by the ”Counter Mode”.
If the input U/D is held ”H”, the internal counter
counts up, and held ”L”, counts down. The internal
counter’s outputsare stored inthe output register at
the positive edge of register clock (RCK).
The counter features enable P and enable T and a
ripple-carry
output
for
register/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.
Both the counter clock CCK and register clock RCK
are positive-edge triggered. The counter clear
CCLR is active low and is synchronous for
HC698/699, and asynchronous for HC696/697.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
easy
expansion.
the
1/22
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| M74HC699B1R | HC697/699 U/D 4 BIT BINARY COUNTER/REGISTER 3-STATE HC696/698 U/D DECADE COUNTER/REGISTER 3-STATE |
| M74HC699M1R | HC697/699 U/D 4 BIT BINARY COUNTER/REGISTER 3-STATE HC696/698 U/D DECADE COUNTER/REGISTER 3-STATE |
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