SNJ54HCT139W
SNJ54HCT139W is DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXER manufactured by Texas Instruments.
- Part of the SNJ54HCT139J comparator family.
- Part of the SNJ54HCT139J comparator family.
description
/ordering information
The ’HCT139 devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay time of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
SCLS066D
- MARCH 1982
- REVISED SEPTEMBER 2003
SN54HCT139 . . . J OR W PACKAGE SN74HCT139 . . . D, DB, N, OR PW PACKAGE
(TOP VIEW)
1G 1 1A 2 1B 3 1Y0 4 1Y1 5 1Y2 6 1Y3 7 GND 8
16 VCC 15 2G 14 2A 13 2B 12 2Y0 11 2Y1 10 2Y2 9 2Y3
SN54HCT139 . . . FK PACKAGE (TOP VIEW)
2G
1G
1A
1B
3 2 1 20 19
2A
1Y0 5
17 2B
NC 6
16 NC
1Y1 7
15 2Y0
1Y2 8
14 2Y1
9 10 11 12 13
2Y2
2Y3
1Y3
- No internal connection
ORDERING INFORMATION
PACKAGE†...
