74HC688D NXP Semiconductors, 74HC688D Datasheet - Page 7

• Manufacturer Part Number: 74HC688D
• Description: IC, 74HC CMOS, SMD, 74HC688, SOIC20
• Manufacturer: NXP Semiconductors

Specifications of 74HC688D

• Comparator Type: Magnitude
• No. Of Channels: 8
• Supply Voltage Range: 2V To 6V
• Logic Case Style: SOIC
• No. Of Pins: 20
• Operating Temperature Range: -40°C To +125°C
• Svhc: No SVHC (18-Jun-2010)
• Package: RoHS Compliant
• Base Number: 74
• Rohs Compliant: Yes

Philips Semiconductors
AC WAVEFORMS
APPLICATION INFORMATION
Two or more “688” 8-bit magnitude comparators may be cascaded to compare binary or BCD numbers of more than 8
bits. An example is shown in Fig.8.
PACKAGE OUTLINES
See
December 1990
8-bit magnitude comparator
(1) HC : V
Fig.6
“74HC/HCT/HCU/HCMOS Logic Package Outlines”
HCT: V
Waveforms showing the enable input (E) to
the equal to output (P = Q) propagation
delays and the output transition times.
M
M
= 1.3 V; V
= 50%; V
I
I
= GND to V
= GND to 3 V.
CC
.
Fig.8 Binary or BCD comparator.
.
7
(1) HC : V
Fig.7
HCT: V
Waveforms showing the word inputs (P
to the equal to output (P = Q) propagation
delays and the output transition times.
M
M
= 1.3 V; V
= 50%; V
I
I
= GND to V
= GND to 3 V.
CC
.
74HC/HCT688
Product specification
n
, Q
n
)