74HCT640N NXP Semiconductors, 74HCT640N Datasheet - Page 5

• Manufacturer Part Number: 74HCT640N
• Description: IC, 74HCT CMOS, 74HCT640, DIP20, 5V
• Manufacturer: NXP Semiconductors

Specifications of 74HCT640N

• Supply Voltage Range: 4.5V To 5.5V
• Logic Case Style: DIP
• No. Of Pins: 20
• Operating Temperature Range: -40°C To +125°C
• Svhc: No SVHC (18-Jun-2010)
• Package / Case: DIP
• Base Number: 74
• Ic Generic: RoHS Compliant

Philips Semiconductors
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
Output capability: bus driver
I
Note to HCT types
The value of additional quiescent supply current ( I
To determine I
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
March 1988
CC
INPUT
A
B
OE
DIR
t
t
t
t
SYMBOL
PHL
PZH
PHZ
THL
n
n
Octal bus transceiver; 3-state; inverting
category: MSI
/ t
/ t
/ t
/ t
TLH
PLH
PZL
PLZ
propagation delay
3-state output enable time
3-state output disable time
output transition time
r
A
B
OE, DIR to A
OE, DIR to B
OE, DIR to A
OE, DIR to B
= t
UNIT LOAD COEFFICIENT
1.50
1.50
1.50
0.90
n
n
CC
f
to B
to A
= 6 ns; C
per input, multiply this value by the unit load coefficient shown in the table below.
PARAMETER
n
n
;
L
n
n
n
n
;
;
= 50 pF
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
min. typ. max. min. max. min. max.
11
18
19
5
+25
CC
) for a unit load of 1 is given in the family specifications.
22
30
30
12
5
T
74HCT
amb
40 to +85
( C)
28
38
38
15
40 to +125
33
45
45
18
.
ns
ns
ns
ns
UNIT
74HC/HCT640
4.5
4.5
4.5
4.5
TEST CONDITIONS
V
(V)
Product specification
CC
Fig.5
Fig.6
Fig.6
Fig.5
WAVEFORMS