M74HC161 Datasheet PDF - ST Microelectronics
| Part Number | M74HC161 | |
| Description | SYNCHRONOUS PRESETTABLE 4-BIT COUNTER | |
| Manufacturers | ST Microelectronics | |
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M74HC161
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
s HIGH SPEED :
fMAX = 62 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.)
t(ss SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
ucs BALANCED PROPAGATION DELAYS:
dtPLH ≅ tPHL
ros WIDE OPERATING VOLTAGE RANGE:
PVCC (OPR) = 2V to 6V
s PIN AND FUNCTION COMPATIBLE WITH
te74 SERIES 161
oleDESCRIPTION
sThe M74HC161 is an high speed CMOS
bSYNCHRONOUS
4-BIT
BINARY
OPRESETTABLE COUNTER fabricated with silicon
-gate C2MOS technology.
t(s)The CLOCK input is active on the rising edge.
Both LOAD and CLEAR inputs are active LOW.
cPresetting is synchronous on the rising edge of
uthe clock, the function is cleared asynchronously.
DIP
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
TSSOP
M74HC161B1R
M74HC161M1R
T&R
M74HC161RM13TR
M74HC161TTR
Two enable inputs (TE and PE) and CARRY
output are provided to enable easy cascading of
counters, which facilities easy implementation of
N-bit counters without using external gates.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
Obsolete ProdPIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
1/12
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M74HC161
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
25 75
7 15
95 110
19 22 ns
6.0 6 13 16 19
tPLH tPHL Propagation Delay
Time
2.0
4.5
48 125 155 190
16 25 31 38 ns
(CLOCK - Q)
)tPLH tPHL Propagation Delay
Time
t(s(CLOCK - CARRY)
uctPLH tPHL Propagation Delay
Time
rod(TE - CARRY)
PtPLH Propagation Delay
Time
te(CLEAR - Q)
letPHL Propagation Delay
oTime
bs(CLEAR - CARRY)
OfMAX Maximum Clock
-Frequency
t(s)tW(H)
ctW(L)
Minimum Pulse
Width (CLOCK)
rodutW(L) Minimum Pulse
Width (CLEAR)
te Pts Minimum Set-up
Time
ole(LOAD, PE, TE)
sts Minimum Set-up
Ob Time
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
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
14 21 26 32
57 150 190 225
19 30 38 45 ns
16 26 32 38
39 100 125 150
13 20 25 30 ns
11 17 21 26
60 150 190 225
20 30 38 45 ns
17 26 32 38
72 200 250 300
24 40 50 60 ns
20 34 43 51
6.2 18 5 4.2
31 53 25 21 MHz
37 62 30 25
18 75
95 110
6 15 19 22 ns
6 13 16 19
24 75
95 110
7 15 19 22 ns
6 13 16 19
40 100 125 150
10 20 25 30 ns
8 17 21 26
20 75
95 110
5 15 19 22 ns
(A, B, C, D)
6.0
3 13 16 19
th Minimum Hold
Time
2.0
4.5
000
0 0 0 ns
(A, B - CLOCK)
6.0
000
tREM Minimum Removal 2.0
Time
4.5
18 50 65 75
4 10 13 15 ns
6.0
39
11 13
5/12
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for M74HC161 electronic component. |
| Information | Total 12 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ M74HC161.PDF Datasheet ] | |
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