| 157921 | 74ALS240A-1DB | Octal inverter buffer 3-State | Philips |
| 157922 | 74ALS240A-1N | Octal inverter buffer 3-State | Philips |
| 157923 | 74ALS240AD | Octal inverter buffer 3-State | Philips |
| 157924 | 74ALS240ADB | Octal inverter buffer 3-State | Philips |
| 157925 | 74ALS240AN | Octal inverter buffer 3-State | Philips |
| 157926 | 74ALS241A | Octal buffer 3-state | Philips |
| 157927 | 74ALS241A-1 | Octal buffer 3-state | Philips |
| 157928 | 74ALS241A-1D | Octal buffer 3-state | Philips |
| 157929 | 74ALS241A-1DB | Octal buffer 3-state | Philips |
| 157930 | 74ALS241A-1N | Octal buffer 3-state | Philips |
| 157931 | 74ALS241AD | Octal buffer 3-state | Philips |
| 157932 | 74ALS241ADB | Octal buffer 3-state | Philips |
| 157933 | 74ALS241AN | Octal buffer 3-state | Philips |
| 157934 | 74ALS244 | Octal 3-STATE Bus Driver | Fairchild Semiconductor |
| 157935 | 74ALS244 | Octal buffer 3-State | Philips |
| 157936 | 74ALS244 | OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS | Texas Instruments |
| 157937 | 74ALS244A | Octal buffer 3-State | Philips |
| 157938 | 74ALS244A-1 | Octal buffer 3-State | Philips |
| 157939 | 74ALS244A-1D | 5.5 V, octal buffer | Philips |
|
| 157940 | 74ALS244A-1DB | Octal buffer 3-State | Philips |
| 157941 | 74ALS244A-1N | Octal buffer 3-State | Philips |
| 157942 | 74ALS244AD | Octal buffer 3-State | Philips |
| 157943 | 74ALS244ADB | Octal buffer 3-State | Philips |
| 157944 | 74ALS244AN | Octal buffer 3-State | Philips |
| 157945 | 74ALS245 | Octal 3-STATE Bus Transceiver | Fairchild Semiconductor |
| 157946 | 74ALS245A | Octal transceiver 3-State | Philips |
| 157947 | 74ALS245A-1 | Octal transceiver 3-State | Philips |
| 157948 | 74ALS245A-1D | 5.5 V, octal transceiver | Philips |
| 157949 | 74ALS245A-1DB | Octal transceiver 3-State | Philips |
| 157950 | 74ALS245A-1N | Octal transceiver 3-State | Philips |
| 157951 | 74ALS245AD | Octal transceiver 3-State | Philips |
| 157952 | 74ALS245ADB | Octal transceiver 3-State | Philips |
| 157953 | 74ALS245AN | Octal transceiver 3-State | Philips |
| 157954 | 74ALS251 | 8-input multiplexer 3-State | Philips |
| 157955 | 74ALS251D | 8-input multiplexer 3-State | Philips |
| 157956 | 74ALS251N | 8-input multiplexer 3-State | Philips |
| 157957 | 74ALS253 | Dual 4-input multiplexer 3-State | Philips |
| 157958 | 74ALS253D | Dual 4-input multiplexer 3-State | Philips |
| 157959 | 74ALS253DB | Dual 4-input multiplexer 3-State | Philips |
| 157960 | 74ALS253N | Dual 4-input multiplexer 3-State | Philips |
