SN74ALS273
SN74ALS273 is OCTAL D-TYPE FLIP-FLOP manufactured by Texas Instruments.
description
These octal positive-edge-triggered flip-flops utilize TTL circuitry to implement D-type flip-flop logic with a direct-clear (CLR) input.
Information at the data (D) inputs meeting the setup-time requirements is transferred to the Q outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a particular voltage level and is not directly related to the transition time of the positive-going pulse. When CLK is at either the high or low level, the D input signal has no effect at the output.
The SN54ALS273 is characterized for operation over the full military temperature range of
- 55°C to 125°C. The SN74ALS273 is characterized for operation from 0°C to 70°C.
4Q GND CLK
5Q 5D
SN54ALS273, SN74ALS273 OCTAL D-TYPE FLIP-FLOPS
WITH CLEAR
SDAS218A
- APRIL 1982
- REVISED DECEMBER 1994
SN54ALS273 . . . J PACKAGE SN74ALS273 . . . DW OR N PACKAGE
(TOP VIEW)
CLR 1 1Q 2 1D 3 2D 4 2Q 5 3Q 6 3D 7 4D 8 4Q 9
GND 10
20 VCC 19 8Q 18 8D 17 7D 16 7Q 15 6Q 14 6D 13 5D 12 5Q 11 CLK
SN54ALS273 . . . FK PACKAGE (TOP VIEW)
1D 1Q CLR VCC 8Q
3 2 1 20 19
2D 4
18 8D
2Q 5
17 7D
3Q 6
16 7Q
3D 7
15 6Q
4D 8
14 6D
9 10 11 12 13
FUNCTION TABLE (each flip-flop)
INPUTS CLR CLK D
OUTPUT...
