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부품번호 | 54ACT244 기능 |
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기능 | Octal Buffer/Line Driver | ||
제조업체 | National Semiconductor | ||
로고 | |||
전체 8 페이지수
www.DataSheet4U.com
August 1998
54AC244 • 54ACT244
Octal Buffer/Line Driver with TRI-STATE® Outputs
General Description
The ’AC/’ACT244 is an octal buffer and line driver designed
to be employed as a memory address driver, clock driver and
bus-oriented transmitter/receiver which provides improved
PC board density.
Features
n ICC and IOZ reduced by 50%
n TRI-STATE outputs drive bus lines or buffer memory
address registers
n Outputs source/sink 24 mA
n ’ACT244 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
— ’AC244: 5962-87552
— ’ACT244: 5962-87760
Logic Symbol
IEEE/IEC
Pin Names
OE1, OE2
I0– I7
O0– O7
Description
TRI-STATE Output Enable Inputs
Inputs
Outputs
DS100282-1
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100282
www.national.com
DC Characteristics for ’AC Family Devices (Continued)
Symbol
Parameter
IOZ
IOLD
IOHD
ICC
Maximum
TRI-STATE
Current
(Note 3) Minimum
Dynamic Output
Current
Maximum Quiescent
Supply Current
54AC
VCC
TA =
(V) −55˚C to +125˚C
Guaranteed Limits
5.5 ±5.0
5.5 50
5.5 −50
5.5 80.0
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.
Note 5: ICC for 54AC @ 25˚C is identical to 74AC @ 25˚C.
DC Characteristics for ’ACT Family Devices
Symbol
Parameter
VIH Minimum High Level
Input Voltage
VIL Maximum Low Level
Input Voltage
VOH Minimum High Level
Output Voltage
54ACT
VCC
TA =
(V) −55˚C to +125˚C
Guaranteed Limits
4.5 2.0
5.5 2.0
4.5 0.8
5.5 0.8
4.5 4.4
5.5 5.4
4.5 3.70
5.5 4.70
VOL Maximum Low Level
Output Voltage
4.5
5.5
0.1
0.1
IIN
IOZ
ICCT
IOLD
IOHD
ICC
Maximum Input Leakage Current
Maximum TRI-STATE
Current
Maximum ICC/Input
(Note 7) Minimum
Dynamic Output
Current
Maximum Quiescent
Supply Current
4.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
Note 6: All outputs loaded; thresholds on input associated with output under test.
Note 7: Maximum test duration 2.0 ms, one output loaded at a time.
Note 8: ICC for 54ACT @ 25˚C is identical to 74ACT @ 25˚C.
0.50
0.50
±1.0
±5.0
1.6
50
−50
80.0
Units
Conditions
VI (OE) = VIL, VIH
µA VI = VCC, VGND
VO = VCC, GND
mA VOLD = 1.65V Max
mA VOHD = 3.85V Min
µA VIN = VCC
or GND
Units
Conditions
V VOUT = 0.1V
or VCC − 0.1V
V VOUT = 0.1V
or VCC − 0.1V
V IOUT = −50 µA
(Note 6)
VIN = VIL or VIH
V IOH −24 mA
−24 mA
V IOUT = 50 µA
(Note 6)
VIN = VIL or VIH
V IOL 24 mA
24 mA
µA VI = VCC, GND
µA VI = VIL, VIH
VO = VCC, GND
mA VI = VCC − 2.1V
mA VOLD = 1.65V Max
mA VOHD = 3.85V Min
µA VIN = VCC
or GND
www.national.com
4
4페이지 Physical Dimensions inches (millimeters) unless otherwise noted
20-Terminal Ceramic Leadless Chip Carrier (L)
NS Package Number E20A
20-Lead Ceramic Dual-In-Line Package (D)
NS Package Number J20A
7
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7페이지 | |||
구 성 | 총 8 페이지수 | ||
다운로드 | [ 54ACT244.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
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 |
54ACT240 | Octal Buffer/Line Driver | National Semiconductor |
54ACT240 | Octal Buffer/Line Driver with TRI-STATE Outputs | Texas Instruments |
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