參數(shù)資料
型號: SN54LS642J
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: Octal 3-State Inverting Transceiver; Package: SOEIAJ-20; No of Pins: 20; Container: Tape and Reel; Qty per Container: 2000
中文描述: LS SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, CDIP20
封裝: CERAMIC, DIP-20
文件頁數(shù): 2/3頁
文件大?。?/td> 118K
代理商: SN54LS642J
5-2
FAST AND LS TTL DATA
SN54/74LS640
SN54/74LS645
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
TA
Operating Ambient Temperature Range
54
74
–55
0
25
25
125
70
°
C
IOH
Output Current — High
54, 74
–3.0
mA
54
74
–12
–15
mA
IOL
Output Current — Low
54
74
12
24
mA
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
Parameter
Limits
Typ
Unit
Test Conditions
Min
Max
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
54
0.5
V
Guaranteed Input LOW Voltage for
All Inputs
74
0.6
VIK
Input Clamp Diode Voltage
–0.65
–1.5
V
VCC = MIN, IIN = –18 mA
VCC = MIN, IOH = 3.0 mA
VCC = MIN, IOH = MAX
IOL = 12 mA
VOH
Output HIGH Voltage
54, 74
2.4
3.4
V
54, 74
2.0
V
VOL
Output LOW Voltage
54, 74
0.25
0.4
V
VCC = VCC MIN,
per Truth Table
74
0.35
0.5
V
IOL = 24 mA
VIN = VIL or VIH
IOZH
IOZL
Output Off Current HIGH
20
μ
A
μ
A
μ
A
mA
VCC = MAX, VOUT = 2.7 V
VCC = MAX, VOUT = 0.4 V
VCC = MAX, VIN = 2.7 V
VCC = MAX, VIN = 7.0 V
VCC = MAX, VIN = 5.5 V
VCC = MAX, VIN = 0.4 V
VCC = MAX
Output Off Current LOW
–400
IIH
Input HIGH Current
A or B, DIR or G
20
DIR or G
0.1
A or B
0.1
mA
IIL
IOS
Input LOW Current
–0.4
mA
Output Short Circuit Current (Note 1)
–40
–225
mA
ICC
Power Supply Current
Total Output HIGH
70
mA
VCC = MAX
Total, Output LOW
90
Total at HIGH Z
95
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
(TA = 25
°
C, VCC = 5.0 V)
Symbol
tPLH
tPHL
tPLH
tPHL
tPZL
tPZH
tPZL
tPZH
tPLZ
tPHZ
tPLZ
tPHZ
Parameter
Limits
Unit
Test Conditions
LS640
LS645
Min
Typ
6.0
8.0
Max
10
15
Min
Typ
8.0
11
Max
15
15
Propagation Delay
A to B
ns
RL = 667
Propagation Delay
B to A
6.0
8.0
10
15
8.0
11
15
15
ns
CL = 45 pF,
Output Enable Time
G, DIR to A
31
23
40
40
31
26
40
40
ns
Output Enable Time
G, DIR to B
31
23
40
40
31
26
40
40
ns
Output Disable Time
G, DIR to A
15
15
25
25
15
15
25
25
ns
CL = 5.0 pF
Output Disable Time
G, DIR to B
15
15
25
25
15
15
25
25
ns
相關(guān)PDF資料
PDF描述
SN54LS645J OCTAL BUS TRANSCEIVERS
SN54LS74 Data Selector/Multiplexer 2-Input Q; Package: SOIC 16 LEAD; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2500
SN54LS74A Data Selector/Multiplexer 2-Input Q; Package: TSSOP-16; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2500
SN54LS74J 8-Bit Serial-Input/Parallel-Output Shift Register; Package: SOIC 14 LEAD; No of Pins: 14; Container: Rail; Qty per Container: 55
SN54LS76A 8-Bit Serial-Input/Parallel-Output Shift Register; Package: PDIP-14; No of Pins: 14; Container: Rail; Qty per Container: 500
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