74HCT257D,653 NXP Semiconductors, 74HCT257D,653 Datasheet - Page 10

• Manufacturer Part Number: 74HCT257D,653
• Description: IC MULTIPLEX QUAD 2IN 3ST 16SOIC
• Manufacturer: NXP Semiconductors
• Series: 74HCTr
• Type: Multiplexerr

Specifications of 74HCT257D,653

• Package / Case: 16-SOIC (3.9mm Width)
• Circuit: 4 x 2:1
• Independent Circuits: 1
• Current - Output High, Low: 6mA, 6mA
• Voltage Supply Source: Single Supply
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Product: Decoders, Encoders, Multiplexers & Demultiplexers
• Logic Family: HCT
• Number Of Lines (input / Output): 8.0 / 4.0
• Propagation Delay Time: 30 ns at 4.5 V
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Input Lines: 8.0
• Number Of Output Lines: 4.0
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 74HCT257D-T; 74HCT257D-T; 933713650653

NXP Semiconductors
Table 9.
74HC_HCT257_5
Product data sheet
Type
74HC257
74HCT257
Fig 8.
Measurement points are given in
Definitions test circuit:
R
C
R
Test circuit for switching times
T
L
L
Test data
= Termination resistance should be equal to output impedance Z
= Load capacitance including jig and probe capacitance.
= Load resistor.
Input
V
V
3 V
I
CC
t
6 ns
6 ns
r
negative
, t
positive
pulse
pulse
f
0 V
0 V
V
V
G
I
I
Table 8
90 %
10 %
V I
Load
C
50 pF
50 pF
and test data is given in
L
t
t
r
f
Rev. 05 — 13 January 2010
V
V
M
M
R T
10 %
90 %
DUT
V
CC
t
t
W
W
R
1 kΩ
1 kΩ
L
V O
Table
o
of the pulse generator.
V
V
M
M
9.
C L
74HC257; 74HCT257
t
t
r
f
R L
Switch position
t
open
open
PHL
S1
, t
001aad983
PLH
Quad 2-input multiplexer; 3-state
V
CC
open
t
GND
GND
PZH
, t
PHZ
© NXP B.V. 2010. All rights reserved.
t
V
V
PZL
CC
CC
, t
PLZ
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