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부품번호 | KK74HC640A 기능 |
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기능 | Octal 3-State Inverting Bus Transceiver | ||
제조업체 | KODENSHI KOREA | ||
로고 | |||
TECHNICAL DATA
Octal 3-State Inverting
Bus Transceiver
High-Performance Silicon-Gate CMOS
KK74HC640A
The KK74HC640A is identical in pinout to the LS/ALS640. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
The KK74HC640A is a 3-state transceiver that is used for 2-way
asynchronous communication between data buses. The device has an
active-low Output Enable pin, which is used to place the I/O ports into
high-impedance states. The Direction control determines whether data
flows from A to B or from B to A.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
KK74HC640AN Plastic
KK74HC640ADW SOIC
TA = -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 20=VCC
PIN 10 = GND
www.DataSheet4U.net
FUNCTION TABLE
Control Inputs
Output Direction
Enable
LL
LH
HX
X = don’t care
Operation
Data Transmitted
from Bus B to
Bus A (inverted)
Data Transmitted
from Bus A to
Bus B (inverted)
Buses Isolated
(High Impedance
State)
1
KK74HC640A
AC ELECTRICAL CHARACTERISTICS (CL=50pF,Input tr=tf=6.0 ns)
Symbol
Parameter
tPLH, tPHL Maximum Propagation Delay, A to B , B to A
(Figures 1 and 3)
tPLZ, tPHZ Maximum Propagation Delay , Direction or
Output Enable to A or B (Figures 2 and 4)
tPZL, tPZH Maximum Propagation Delay , Direction or
Output Enable to A or B (Figures 2 and 4)
tTLH, tTHL Maximum Output Transition Time, Any Output
(Figures 1 and 3)
CIN
COUT
Maximum Input Capacitance (Pin 1 or Pin 19)
Maximum Three-State I/O Capacitance
(Output in High-Impedance State)
VCC Guaranteed Limit
V 25 °C ≤85°C ≤125°C
to
-55°C
2.0 75
4.5 15
6.0 13
95 110
19 22
16 19
2.0 110 140 165
4.5 22 28 33
6.0 19 24 28
2.0 110 140 165
4.5 22 28 33
6.0 19 24 28
2.0 60 75 90
4.5 12 15 18
6.0 10 13 15
- 10 10 10
- 15 15 15
Unit
ns
ns
ns
ns
pF
pF
Power Dissipation Capacitance (Per Transceiver
Channel)
CPD Used to determine the no-load dynamic power
consumption:
PD=CPDVCC2f+ICCVCC
Typical @25°C,VCC=5.0 V
40
pF
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
4
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
KK74HC640A | Octal 3-State Inverting Bus Transceiver | KODENSHI KOREA |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |