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74AC161M 데이터시트 PDF




STMicroelectronics에서 제조한 전자 부품 74AC161M은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 74AC161M 자료 제공

부품번호 74AC161M 기능
기능 SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
제조업체 STMicroelectronics
로고 STMicroelectronics 로고


74AC161M 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




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74AC161M 데이터시트, 핀배열, 회로
® 74AC161
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
s HIGH SPEED:
fMAX =125 MHz (TYP.) at VCC = 5V
s LOW POWER DISSIPATION:
ICC = 8 µA (MAX.) at TA = 25 oC
s HIGH NOISE IMMUNITY:
VNIH = VNIL = 28% VCC (MIN.)
s 50TRANSMISSION LINE DRIVING
CAPABILITY
s SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 24 mA (MIN)
s BALANCED PROPAGATION DELAYS:
tPLH tPHL
s OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
s PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 161
s IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The AC161 is a high-speed CMOS
SYNCRONOUS PRESETTABLE COUNTER
fabricated with sub-micron silicon gate and
double-layer metal wiring C2MOS technology. It is
ideal for low power applications mantaining high
speed operation similar to eqivalent Bipolar
Schottky TTL. It is a 4 bit binary counter with
Asynchronous Clear.
The circuit have four fundamental modes of
operation, in order of preference: synchronous
BM
(Plastic Package)
(Micro Package)
ORDER CODES :
74AC161B
74AC161M
reset, parallel load, count-up and hold. Four
control inputs, Master Reset (CLEAR), Parallel
Enable Input (LOAD), Count Enable Input (PE)
and Count Enable Carry Input (TE), determine
the mode of operation as shown in the Truth
Table. A LOW signal on CLEAR overrides
counting and parallel loading and sets all outputs
on LOW state. A LOW signal on LOAD overrides
counting and allows information on Parallel Data
Qn inputs to be loaded into the flip-flops on the
next rising edge of CLOCK. With LOAD and
CLEAR, PE and TE permit counting when both
are HIGH. Conversely, a LOW signal on either
PE and TE inhibits counting.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
December 1998
1/12




74AC161M pdf, 반도체, 판매, 대치품
74AC161
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC Supply Voltage
-0.5 to +7
V
VI DC Input Voltage
-0.5 to VCC + 0.5
V
VO DC Output Voltage
-0.5 to VCC + 0.5
V
IIK DC Input Diode Current
± 20 mA
IOK DC Output Diode Current
± 20 mA
IO DC Output Current
± 50 mA
ICC or IGND DC VCC or Ground Current
± 300
mA
Tstg Storage Temperature
-65 to +150
oC
TL Lead Temperature (10 sec)
300 oC
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
VCC Supply Voltage
VI Input Voltage
VO Output Voltage
Top Operating Temperature:
dt/dv Input Rise and Fall Time VCC = 3.0, 4.5 or 5.5 V(note 1)
1) VIN from 30% to70%of VCC
Valu e
2 to 6
0 to VCC
0 to VCC
-40 to +85
8
Unit
V
V
V
oC
ns/V
4/12

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74AC161M 전자부품, 판매, 대치품
TEST CIRCUIT
74AC161
CL = 50 pF or equivalent (includes jigand probe capacitance)
RL = R1 = 500orequivalent
RT = ZOUT of pulse generator (typically 50)
WAVEFORM 1: PROPAGATION DELAYS, COUNT MODE (f=1MHz; 50% duty cycle)
7/12

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구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

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관련 데이터시트

부품번호상세설명 및 기능제조사
74AC161

SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

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Synchronous Presettable Binary Counter

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