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M74HCT245B1R

P1-P3P4-P6P7-P9
M74HCT245
4/9
CAPACITIVE CHARACTERISTICS
1) C
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/8 (per circuit)
TEST CIRCUIT
C
L
= 50pF/150pF or equivalent (includes jig and probe capacitance)
R
1
= 1KΩ or equivalent
R
T
= Z
OUT
of pulse generator (typically 50Ω)
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
C
IN
Input Capacitance
DIR, G
5101010pF
C
I/OUT
Output
Capacitance
An, Bn 13 pF
C
PD
Power Dissipation
Capacitance (note
1)
41 pF
TEST SWITCH
t
PLH
, t
PHL
Open
t
PZL
, t
PLZ
V
CC
t
PZH
, t
PHZ
GND
M74HCT245
5/9
WAVEFORM 1 : PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle)
WAVEFORM 2 : OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
M74HCT245
6/9
DIM.
mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
a1 0.254 0.010
B 1.39 1.65 0.055 0.065
b 0.45 0.018
b1 0.25 0.010
D 25.4 1.000
E 8.5 0.335
e 2.54 0.100
e3 22.86 0.900
F 7.1 0.280
I 3.93 0.155
L 3.3 0.130
Z 1.34 0.053
Plastic DIP-20 (0.25) MECHANICAL DATA
P001J
P1-P3P4-P6P7-P9

M74HCT245B1R

Mfr. #:
Buy M74HCT245B1R
Manufacturer:
STMicroelectronics
Description:
Bus Transceivers Octal Bus Transceivr
Lifecycle:
New from this manufacturer.
Delivery:
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