74HCT257D NXP Semiconductors, 74HCT257D Datasheet - Page 9

• Manufacturer Part Number: 74HCT257D
• Description: IC, LOGIC, 74HCT, MULTIPLEXER, SO16
• Manufacturer: NXP Semiconductors

Specifications of 74HCT257D

• Logic Type: Multiplexer
• No. Of Outputs: 4
• Supply Voltage Range: 4.5V To 5.5V
• Logic Case Style: SOIC
• No. Of Pins: 16
• Operating Temperature Range: -40°C To +125°C
• Svhc: No SVHC (18-Jun-2010)
• Package: RoHS Compliant
• Logic Ic Base Number: 74257
• Rohs Compliant: Yes

NXP Semiconductors
11. Waveforms
Table 8.
74HC_HCT257_5
Product data sheet
Type
74HC257
74HCT257
Fig 6.
Fig 7.
Measurement points are given in
V
Propagation delays input (S, nI0, nI1) to output (nY) and output (nY) transition times
Measurement points are given in
V
3-state output enable and disable times
OL
OL
Measurement points
and V
and V
OH
OH
are typical voltage output levels that occur with the output load.
are typical voltage output levels that occur with the output load.
HIGH-to-OFF
OFF-to-HIGH
LOW-to-OFF
OFF-to-LOW
OE input
output
output
S, nI0, nI1
output
input
GND
GND
V
V
Table
V
Table
nY
OH
CC
OL
V
Input
V
0.5V
1.3 V
GND
I
V
M
V
10 %
OH
OL
V
8.
8.
I
CC
Rev. 05 — 13 January 2010
V
90 %
M
enabled
outputs
t
t
r
PLZ
t
PHZ
V
t
M
THL
V
M
t
10 %
PHL
90 %
disabled
outputs
10 %
V M
V
74HC257; 74HCT257
M
t
TLH
t
PZL
t
PZH
t
f
90 %
t
001aad477
PLH
Output
V
0.5V
1.3 V
V
M
Quad 2-input multiplexer; 3-state
M
V
CC
M
001aac479
outputs
enabled
© NXP B.V. 2010. All rights reserved.
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