Features: • High speed parallel latches• Ideal where high speed, light loading, or increased fan-in are required with MOS microprocessors• Broadside pinout• Output capability: +64 mA / 32 mA• Power-up 3-State• Power-up reset• Latch-up protection exceeds 50...
74ABT845: Features: • High speed parallel latches• Ideal where high speed, light loading, or increased fan-in are required with MOS microprocessors• Broadside pinout• Output capability...
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SYMBOL | PARAMETER | CONDITIONS | RATING | UNIT |
VCC | DC supply voltage | 0.5 to +7.0 | V | |
IIK | DC input diode current | VI < 0 | 18 | mA |
VI | DC input voltage3 | 1.2 to +7.0 | V | |
IOK | DC output diode current | VO < 0 | 50 | mA |
VOUT | DC output voltage3 | output in Off or High state | 0.5 to +5.5 | V |
IOUT | DC output current | output in Low state | 128 | mA |
Tstg | Storage temperature range | 65 to 150 | °C |
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150 °C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
The 74ABT845 consists of eight D-type latches with 3-State outputs. In addition to the LE, OE, MR and PRE pins, the 74ABT845 has two additional OE pins, making a total of three Output Enable (OE0, OE1, OE2) pins. The multiple Output enables allow multiuser control of the interface, e.g., CS, DMA, and RD/WR.