DataSheet26.com

74ALS645A PDF даташит

Спецификация 74ALS645A изготовлена ​​​​«NXP Semiconductors» и имеет функцию, называемую «Octal transceiver 3-State».

Детали детали

Номер произв 74ALS645A
Описание Octal transceiver 3-State
Производители NXP Semiconductors
логотип NXP Semiconductors логотип 

8 Pages
scroll

No Preview Available !

74ALS645A Даташит, Описание, Даташиты
INTEGRATED CIRCUITS
74ALS645A/74ALS645A–1
Octal transceiver (3–State)
Product specification
IC05 Data Handbook
1991 Jun 03
Philips
Semiconductors









No Preview Available !

74ALS645A Даташит, Описание, Даташиты
Philips Semiconductors
Octal transceiver (3-State)
Product specification
74ALS645A/74ALS645A-1
FEATURES
Octal bidirectional bus interface
3-State buffer outputs sink 24mA and source 15mA
Outputs are placed in high impedance state during power-off
conditions
The -1 version sinks 48mA IOL within the +5% VCC range
DESCRIPTION
The 74ALS645A is an octal transceiver featuring non-inverting
3-State bus compatible outputs in both transmit and receive
directions. The device features an output enable (OE) input for easy
cascading and transmit/receive (R/T) input for direction control.
The 74ALS645A-1 is the same as the 74ALS645A except that both
ports sink 48mA within the ±5% VCC range.
TYPE
74ALS645A
74ALS645A-1
TYPICAL
PROPAGATION
DELAY
7.0ns
7.0ns
TYPICAL
SUPPLY CURRENT
(TOTAL)
34mA
34mA
PIN CONFIGURATION
T/R 1
A0 2
A1 3
A2 4
A3 5
A4 6
A5 7
A6 8
A7 9
GND 10
20 VCC
19 OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
SF00198
ORDERING INFORMATION
ORDER CODE
DESCRIPTION
20-pin plastic DIP
COMMERCIAL RANGE
VCC = 5V ±10%,
Tamb = 0°C to +70°C
74ALS645AN,
74ALS645A-1N
20-pin plastic SOL
74ALS645AD,
744ALS645A-1D
DRAWING
NUMBER
SOT146-1
SOT163-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74ALS (U.L.)
HIGH/LOW
A0 – A7, B0 – B7
Data inputs
1.0/1.0
OE Output Enable input (active-Low)
1.0/1.0
T/R Transmit/receive input
1.0/1.0
A0 – A7
A port outputs
750/240
B0 – B7
B port outputs
750/240
A0 – A7
A port outputs (-1 version)
750/480
B0 – B7
B port outputs (-1 version)
750/480
NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1mA in the Low state.
LOAD VALUE
HIGH/LOW
20µA/0.1mA
20µA/0.1mA
20µA/0.1mA
15mA/24mA
15mA/24mA
15mA/48mA
15mA/48mA
LOGIC SYMBOL
IEC/IEEE SYMBOL
234567 89
A0 A1 A2 A3 A4 A5 A6 A7
19 OE
1 T/R
B0 B1 B2 B3 B4 B5 B6 B7
VCC = Pin 20
GND = Pin 10
18 17 16 15 14 13 12 11
SF00199
19 G3
3EN1 [BA]
1 3EN2 [AB]
1
2
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
SC00097
1991 Jun 03
2 853–0597 02709









No Preview Available !

74ALS645A Даташит, Описание, Даташиты
Philips Semiconductors
Octal transceiver (3-State)
Product specification
74ALS645A/74ALS645A-1
LOGIC DIAGRAM
A0 A1 A2 A3 A4 A5 A6 A7
23456789
OE 19
1
T/R
VCC = Pin 20
GND = Pin 10
18
B0
17
B1
16
B2
15
B3
14
B4
13
B5
12
B6
11
B7
SF00201
FUNCTION TABLE
INPUTS
OE T/R
OUTPUTS
L L Bus B data to Bus A
L H Bus A data to Bus B
HX
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance “off” state
Z
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free air temperature range.)
SYMBOL
PARAMETER
VCC
VIN
IIN
VOUT
IOUT
Supply voltage
Input voltage
Input current
Voltage applied to output in High output state
Current applied to output in Low output state
All versions
-1 version
Tamb
Tstg
Operating free-air temperature range
Storage temperature range
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
VCC Supply voltage
VIH High-level input voltage
VIL Low-level input voltage
IIK Input clamp current
IOH High-level output current
IOL Low-level output current
Tamb
Operating free-air temperature range
NOTES:
1. The 48mA limit applies only under the condition of VCC = 5.0V ± 5%.
All versions
-1 version
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
–0.5 to VCC
48
96
0 to +70
–65 to +150
UNIT
V
V
mA
V
mA
mA
°C
°C
LIMITS
MIN NOM MAX
4.5 5.0 5.5
2.0
0.8
–18
–15
24
48 1
0 +70
UNIT
V
V
V
mA
mA
mA
mA
°C
1991 Jun 03
3










Скачать PDF:

[ 74ALS645A.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
74ALS645AOctal transceiver 3-StateNXP Semiconductors
NXP Semiconductors
74ALS645A-1Octal transceiver 3-StateNXP Semiconductors
NXP Semiconductors

Номер в каталоге Описание Производители
TL431

100 мА, регулируемый прецизионный шунтирующий регулятор

Unisonic Technologies
Unisonic Technologies
IRF840

8 А, 500 В, N-канальный МОП-транзистор

Vishay
Vishay
LM317

Линейный стабилизатор напряжения, 1,5 А

STMicroelectronics
STMicroelectronics

DataSheet26.com    |    2020    |

  Контакты    |    Поиск