74AHCT240BQ 查看數據表（PDF） - NXP Semiconductors.
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74AHCT240BQ Datasheet PDF : 16 Pages
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NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
VI
nOE input
GND
VCC
nYn output
LOW-to-OFF
OFF-to-LOW
VOL
VOH
nYn output
HIGH-to-OFF
OFF-to-HIGH
GND
VM
tPLZ
tPZL
tPHZ
VX
VY
VM
tPZH
VM
outputs
enabled
outputs
disabled
outputs
enabled
mgu782
Fig 6.
Measurement points are given in Table 8.
VOL and VOH are typical voltage output drop that occur with the output load.
Enable and disable times
Table 8. Measurement points
Type
74AHC240
74AHCT240
Input
VM
0.5VCC
1.5 V
Output
VM
0.5VCC
0.5VCC
VX
VOL + 0.3 V
VOL + 0.3 V
VY
VOH 0.3 V
VOH 0.3 V
74AHC_AHCT240
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 26 November 2010
© NXP B.V. 2010. All rights reserved.
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