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參數資料
| 型號： | M74HC85B1R |
| 廠商： | 意法半導體 |
| 英文描述： | Low-Voltage Adjustable Precision Shunt Regulator 5-SOT-23 -40 to 85 |
| 中文描述： | 4位數值比較 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 252K |
| 代理商： | M74HC85B1R |
M54HC85
M74HC85
December 1992
4-BIT MAGNITUDE COMPARATOR
B1R
(Plastic Package)
ORDER CODES :
M54HC85F1R
M74HC85M1R
M74HC85B1R
M74HC85C1R
F1R
(Ceramic Package)
M1R
(Micro Package)
C1R
(Chip Carrier)
PIN CONNECTIONS (top view)
NC =
No Internal
Connection
INPUT AND OUTPUT EQUIVALENT CIRCUIT
DESCRIPTION
.
HIGH SPEED
tPD = 22 ns (TYP.) at VCC =5 V
.
LOW POWER DISSIPATION
ICC =4
A (MAX.) at TA =25 °C
.
HIGH NOISE IMMUNITY
VNIH =VNIL =28 % VCC (MIN.)
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.
SYMMETRICAL OUTPUT IMPEDANCE
|IOH|= IOL = 4 mA (MIN.)
.
BALANCED PROPAGATION DELAYS
tPLH =tPHL
.
WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V to 6 V
.
PIN AND FUNCTION COMPATIBLE WITH
54/74LS85
The M54/74HC85 is a high speed CMOS 4-BIT
MAGNITUDE COMPARATOR fabricated in silicon
gate C
2MOS technology. It has the same high
speed performance of LSTTL combined with true
CMOS low power consumption. This comparator
compares two 4-bit words and provides a high volt-
age level on one of the A > B out, A = B out and A < B
out outputs. The comparing bit number is easily ex-
panded by cascading several devices as shown in
the typical application. All inputs are equipped with
protection circuits against static discharge and tran-
sient excess voltage.
1/11
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