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HD74LS640 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Octal Bus Transceivers - Renesas

भाग संख्या HD74LS640
समारोह Octal Bus Transceivers
मैन्युफैक्चरर्स Renesas 
लोगो Renesas लोगो 
पूर्व दर्शन
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<?=HD74LS640?> डेटा पत्रक पीडीएफ

HD74LS640 pdf
HD74LS640
Block Diagram
Enable G
Direction
Control DIR
B
Transceiver (1/8)
A
Absolute Maximum Ratings
Item
Symbol
Ratings
Supply voltage
VCC
7
Input voltage
VIN 7
Power dissipation
PT 400
Storage temperature
Tstg –65 to +150
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Unit
V
V
mW
°C
Recommended Operating Conditions
Item
Supply voltage
Output current
Operating temperature
Symbol
VCC
IOH
IOL
Topr
Min
4.75
–20
Typ
5.00
25
Max
5.25
–15
24
75
Unit
V
mA
mA
°C
Electrical Characteristics
(Ta = –20 to +75 °C)
Item
Symbol min. typ.* max. Unit
Condition
Input voltage
Hysteresis
VIH 2.0 — — V
VIL — — 0.8 V
VT+ – VT–
0.2
V VCC = 4.75 V
Output voltage
VOH
2.4 —
2—
V IOH = –3 mA VCC = 4.75 V,
V IOH = –15 mA VIH = 2 V, VIL = 0.8 V
VOL
— — 0.4 V IOL = 12 mA VCC = 4.75 V,
— — 0.5 V IOL = 24 mA VIH = 2 V, VIL = 0.8 V
Output current
IOZH
20
µA VO = 2.7 V
VCC = 5.25 V,
IOZL — — –400 µA VO = 0.4 V G input = 2 V
IIH — — 20 µA VCC = 5.25 V, VI = 2.7 V
Input
IIL — — –400 µA VCC = 5.25 V, VI = 0.4 V
current
A or B
DIR or G
II
0.1 mA VI = 5.5 V
0.1 mA VI = 7 V
VCC = 5.25 V
Short-circuit output current
IOS**
–40
–225
mA VCC = 5.25 V
ICCH — 48 70 mA
Supply current
ICCL — 62 90 mA VCC = 5.25 V, Output open
ICCZ — 64 95 mA
Input clamp voltage
VIK — — –1.5 V VCC = 4.75 V, IIN = –18 mA
Notes: * VCC = 5 V, Ta = 25°C
** Not more than one output shall be shorted at a time. the duration of the short circuit shall not exceed one
second.
Rev.2.00, Feb.18.2005, page 2 of 6

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