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M74HC651 데이터시트 PDF




ST Microelectronics에서 제조한 전자 부품 M74HC651은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 M74HC651 기능
기능 HC652 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE HC651 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE / INV.
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M74HC651 데이터시트, 핀배열, 회로
M74HC651
M74HC652
HC651 OCTAL BUS TRANSCEIVER/REGISTER (3-STATE, INV.)
HC652 OCTAL BUS TRANSCEIVER/REGISTER (3-STATE)
. HIGH SPEED
fMAX = 73 MHz (TYP.) AT VCC = 5V
. LOW POWER DISSIPATION
ICC = 4 µA (MAX.) AT TA = 25 °C
. HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
. OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE
IOH= IOL = 6 mA (mIN.)
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO 6 V
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS651/652
DESCRIPTION
B1R
(Plastic Package)
M1R
(Micro Package)
ORDER CODES :
M74HCXXXM1R M74HCXXXB1R
PIN CONNECTIONS (top view)
M74HC651/652 are high speed CMOS OCTAL
BUS TRANSCEIVERS AND REGISTERS (3-
STATE), fabricated in silicon gate C2MOS technol-
ogy. They have the same high speed performance
of LSTTL combined with true CMOS low power con-
sumption. These devices consist of bus transceiver
circuits, D-type flip-flops, and control circuitry ar-
ranged for multiplexed transmission of data directly
from the input bus or from the internal storage reg-
isters. Enable GAB and GBA are provided to control
the transceiver functions.
Select AB and Select BA control pins are provided
to select whether real-time or stored data is trans-
fered. A low input level selects real-time data, and
a high selects stored data.
Data on the A or B bus, or both, can be stored in the
internal D flip-flops by low-to-high transitions at the
appropriate clock pins (CLOCK AB or CLOCK BA)
regardless of the select or enable control pins. When
select AB and select BA are in the real-time transfer
mode, it is also possible to store data without using
the internal D-type flip-flops by simultaneously en-
abling GAB and GBA. In this configuration each out-
put reinforces its input. Thus, when all other data
sources to the two sets of bus lines are at high im-
pedance, each set of bus lines will remain at its last
state. All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
INPUT AND OUTPUT EQUIVALENT CIRCUIT
GAB, GAB, CAB,
SAB, SBA, CBA
A, B
October 1993
1/12




M74HC651 pdf, 반도체, 판매, 대치품
M74HC651/652
PIN DESCRIPTION
PIN No
1
2
3
4, 5, 6, 7, 8, 9, 10, 11
20, 19, 18, 17, 16, 15, 14, 13
21
22
23
12
24
IEC LOGIC SYMBOLS
HC651
SYMBOL
CLOCK AB
SELECT AB
GAB
A1 to A8
B1 to B8
GBA
SELECT BA
CLOCK BA
GND
VCC
NAME AND FUNCTION
A to B Clock Input (LOW to HIGH, Edge-Trigged)
Select A to B Source Input
Direction Control Input
A data Inputs/Outputs
B Data Inputs/Outputs
Output Enable Input (Active LOW)
Select B to A Source Input
B to A Clock Input (LOW to HIGH, Edge-Triggered)
Ground (0V)
Positive Supply Voltage
HC652
4/12

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M74HC651 전자부품, 판매, 대치품
M74HC651/652
AC ELECTRICAL CHARACTERISTICS (Continued)
Symbol
Parameter
Test Conditions
VCC CL
(V) (pF)
Value
TA = 25 oC
-40 to 85 oC
Min. Typ. Max. Min. Max.
Unit
tPLH Propagation Delay Time
tPHL (SELECT - BUS)
2.0
4.5 50
81 170
23 34
215
43 ns
6.0
20 29
37
2.0
4.5 150
98 210
28 42
265
53 ns
6.0
24 36
45
tPZL 3-State Output Enable Time
tPZH
2.0
4.5 50 RL = 1 K
74 175
21 35
220
44 ns
6.0
18 30
37
2.0
4.5 150 RL = 1 K
91 215
26 43
270
54 ns
6.0
22 37
46
tPLZ Output Disable Time
tPHZ
2.0
4.5 50 RL = 1 K
50 175
21 35
220
44 ns
6.0
18 30
37
fMAX Maximum Clock Frequency
2.0
4.5 50
6 19
4.8
30 67 24 MHz
6.0
35 79
28
tW(H)
tW(L)
Minimum Clock Pulse Width
2.0
4.5 50
30 75
7 15
95
19 ns
6.0
6 13
16
ts Minimum Set-up Time
2.0
4.5 50
16 50
4 10
65
13 ns
6.0
39
11
th Minimum Hold Time
2.0
4.5 50
55
5 5 ns
6.0 5 5
CIN Input Capacitance
5 10
10 pF
CI/O Bus Terminal Capacitance
10 pF
CPD (*) Power Dissipation Capacitance
for HC651
for HC652
39
38
pF
(*) 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 operting current can be obtained by the following equation. ICC(opr) = CPD VCC fIN + ICC/8 (per Channel)
7/12

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관련 데이터시트

부품번호상세설명 및 기능제조사
M74HC651

HC652 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE HC651 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE / INV.

ST Microelectronics
ST Microelectronics
M74HC652

HC652 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE HC651 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE / INV.

ST Microelectronics
ST Microelectronics

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