74HC244D NXP Semiconductors, 74HC244D Datasheet - Page 13

• Manufacturer Part Number: 74HC244D
• Description: Buffer/Line Driver 8-CH Non-Inverting 3-ST CMOS 20-Pin SO Bulk
• Manufacturer: NXP Semiconductors

Specifications of 74HC244D

• Package: 20SO
• Logic Family: HC
• Logic Function: Buffer/Line Driver
• Number Of Outputs Per Chip: 8
• Output Type: 3-State
• Input Signal Type: Single-Ended
• Maximum Propagation Delay Time @ Maximum Cl: 110@2V|22@4.5V|19@6V ns
• Polarity: Non-Inverting

Philips Semiconductors
74HC_HCT244_3
Product data sheet
Table 11:
Type
74HC244
74HCT244
Fig 7. 3-state enable and disable times
Measurement points are given in
V
OL
Measurement points
and V
HIGH-to-OFF
OFF-to-HIGH
LOW-to-OFF
OFF-to-LOW
nYn output
nYn output
nOE input
OH
are typical voltage output drop that occur with the output load.
Rev. 03 — 22 December 2005
GND
GND
V
V
V
CC
OH
OL
V
I
Input
V
0.5V
1.3 V
M
V
enabled
outputs
CC
M
Table
t
t
PLZ
PHZ
11.
V
X
V
74HC244; 74HCT244
Y
disabled
outputs
Octal buffer/line driver; 3-state
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Output
V
0.5V
1.3 V
t
PZL
t
PZH
M
CC
V
M
V
001aae014
M
outputs
enabled
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