HD74BC640A Datasheet, PDF (2/8 Pages) Hitachi Semiconductor – Octal Bus Transceivers With 3 State Outputs

HD74BC640A
Pin Arrangement
DiR
1
A1 2
A2 3
A3 4
A4
5
A5
6
A6
7
A7 8
A8
9
GND 10
20
V_CC
19 G
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 B7
11 B8
(Top view)
Absolute Maximum Ratings
Item
Symbol
Rating
Unit
Supply voltage
Input diode current
Input voltage
Output voltage
Off state output voltage
Storage temperature
V_CC
I_IK
V_IN
V_OUT
V_OUT(off)
Tstg
–0.5 to +7.0
V
±30
mA
–0.5 to +7.5
V
–0.5 to +7.5
V
–0.5 to +5.5
V
–65 to +150
°C
Note: 1. The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two
of which may be realized at the same time.
Recommended Operating Conditions
Item
Symbol
Min
Typ
Supply voltage
V_CC
4.5
5.0
Input voltage
V_IN
0
—
Ouput voltage
V_OUT
0
—
Operating temperature
Topr
–40
—
Input rise/fall time*¹
t_r, t_f
0
—
Note: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
Max
5.5
V_CC
V_CC
85
8
Unit
V
V
V
°C
ns/V
Rev.2.00, Jul.16.2004, page 2 of 7