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M74HC166 Schematic ( PDF Datasheet ) - ST Microelectronics

Teilenummer M74HC166
Beschreibung 8 BIT PISO SHIFT REGISTER
Hersteller ST Microelectronics
Logo ST Microelectronics Logo 




Gesamt 12 Seiten
M74HC166 Datasheet, Funktion
M74HC166
8 BIT PISO SHIFT REGISTER
s HIGH SPEED :
fMAX = 63 MHz (TYP.) at VCC = 6V
s LOW POWER DISSIPATION:
ICC =4µA(MAX.) at TA=25°C
s HIGH NOISE IMMUNITY:
VNIH = VNIL = 28 % VCC (MIN.)
s SYMMETRICAL OUTPUT IMPEDANCE:
DIP
SOP
TSSOP
|IOH| = IOL = 4mA (MIN)
s BALANCED PROPAGATION DELAYS:
tPLH tPHL
)s WIDE OPERATING VOLTAGE RANGE:
t(sVCC (OPR) = 2V to 6V
s PIN AND FUNCTION COMPATIBLE WITH
uc74 SERIES 166
rodDESCRIPTION
PThe M74HC166 is an high speed CMOS 8 BIT
PISO SHIFT REGISTER fabricated with silicon
tegate C2MOS technology.
leIt consists of parallel or serial inputs and a
oserial-out 8 bit shift register with gated clock inputs
sand an overriding clear input. The parallel-in or
bserial-in modes are controlled by the SHIFT/
OLOAD input. When the SHIFT/LOAD input is held
-high, the serial data input is enabled and the eight
)flip-flops perform serial shifting with each clock
t(spulse; when held low, the parallel data inputs are
ORDER CODES
PACKAGE
TUBE
DIP
SOP
TSSOP
M74HC166B1R
M74HC166M1R
T&R
M74HC166RM13TR
M74HC166TTR
enabled and synchronous loading occurs on the
next clock pulse. Clocking is accomplished on the
low-to-high level edge of the clock pulse. The
CLOCK-INHIBIT input should be changed to the
high only while the clock input is held high. A direct
clear input overrides all other inputs, including the
clock, and sets all flip-flops to zero. Functional
details are shown in the truth table and the timing
chart. All inputs are equipped with protection
circuits against static discharge and transient
excess voltage.
Obsolete ProducPIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
1/12






M74HC166 Datasheet, Funktion
M74HC166
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Value
Symbol
Parameter
VCC
(V)
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
tTLH tTHL Output Transition
Time
2.0
4.5
30 75
8 15
95 110
19 22 ns
6.0 7 13 16 19
tPLH tPHL Propagation Delay
Time
2.0
4.5
70 150 190 225
20 30 38 45 ns
(CLOCK - QH)
6.0
16 26 32 38
tPHL Propagation Delay 2.0
Time
4.5
60 135 170 205
18 27 34 41 ns
(CLEAR - QH)
6.0
14 23 29 35
fMAX Maximum Clock
2.0
6.2 14
5.0 4.2
t(s)tW(H)
tW(L)
ductW(L)
te Prots
solets
) - Obth
roduct(stREM
Frequency
Minimum Pulse
Width (CLOCK)
Minimum Pulse
Width (CLEAR)
Minimum Set-up
Time (SI, PI)
Minimum Set-up
Time (SHIFT/
LOAD)
Minimum Hold
Time
Minimum Removal
Time
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
te PCAPACITIVE CHARACTERISTICS
ObsoleSymbol
Parameter
Test Condition
VCC
(V)
31 50 25 21 MHz
37 63 30 25
28 75
95 110
6 15 19 22 ns
5 13 16 19
28 75
95 110
6 15 19 22 ns
5 13 16 19
20 75
95 110
4 15 19 22 ns
3 13 16 19
25 75
95 110
5 15 19 22 ns
3 13 16 19
000
0 0 0 ns
000
12 50 65 75
3 10 13 15 ns
39
11 13
Value
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
CIN Input Capacitance 5.0
CPD Power Dissipation
Capacitance (note 5.0
1)
5 10 10 10 pF
60 pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC
6/12

6 Page









M74HC166 pdf, datenblatt
M74HC166
Obsolete Product(s) - Obsolete Product(s)Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
© The ST logo is a registered trademark of STMicroelectronics
12/12
© 2001 STMicroelectronics - Printed in Italy - All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco
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© http://www.st.com

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