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HD74HCT245 Datasheet(PDF) 3 Page - Renesas Technology Corp

Part # HD74HCT245
Description  Octal Bus Transceivers (with 3-state outputs)
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD74HCT245 Datasheet(HTML) 3 Page - Renesas Technology Corp

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HD74HCT245
Rev.2.00 Mar 30, 2006 page 3 of 6
Electrical Characteristics
Ta = 25°C
Ta = –40 to+85°C
Item
Symbol
VCC (V)
Min
Typ
Max
Min
Max
Unit
Test Conditions
VIH
4.5 to 5.5
2.0
2.0
V
Input voltage
VIL
4.5 to 5.5
0.8
0.8
V
4.4
4.4
V
IOH = –20
µA
VOH
4.5
4.5
4.18
4.13
Vin = VIH or VIL
IOH = –6 mA
0.1
0.1
V
IOL = 20
µA
Output voltage
VOL
4.5
4.5
0.26
0.33
Vin = VIH or VIL
IOL = 6 mA
Off-state output
current
IOZ
5.5
±0.5
±5.0
µA
Vin = VIH or VIL,
Vout = VCC or GND
Input current
Iin
5.5
±0.1
±1.0
µA
Vin = VCC or GND
Quiescent current
ICC
5.5
4.0
40
µA
Vin = VCC or GND, Iout = 0
µA
Switching Characteristics
(CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C
Ta = –40 to +85°C
Item
Symbol VCC (V)
Min
Typ
Max
Min
Max
Unit
Test Conditions
tPLH
4.5
11
22
28
Propagation delay time
tPHL
4.5
13
22
28
ns
tZL
4.5
17
30
38
Output enable time
tZH
4.5
14
30
38
ns
tLZ
4.5
20
30
38
Output disable time
tHZ
4.5
22
30
38
ns
Output rise/fall time
tTLH
tTHL
4.5
4
12
15
ns
Input capacitance
Cin
5
10
10
pF
Test Circuit
VCC
A1
OPEN
GND
CL =
50 pF
G
DIR
B1
Zout = 50
Input
S1
1 K
VCC
VCC
VCC
S2
Output
TEST
S2
tPLH / tPHL
OPEN
GND
tZH / tHZ
tZL / tLZ
Note : 1. CL includes probe and jig capacitance.
2. A2–B2, A3–B3, A4–B4, A5–B5, A6–B6, A7–B7, A8–B8 are identical to above load circuit.
3. S1 is a input / output swich.
Pulse Generator


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