Hitachi Semiconductor (now Renesas) |
74LS21 |
Dual 4-input Positive AND Gates |
Motorola Semiconductor (now NXP Semiconductors) |
74LS21 |
DUAL 4-INPUT AND GATE |
|
Motorola Semiconductor (now NXP Semiconductors) |
SN74LS21 |
DUAL 4-INPUT AND GATE |
National Semiconductor (now Texas Instruments) |
DM74LS21 |
Dual 4-Input AND Gates |
Texas Instruments |
SN74LS21 |
DUAL 4-INPUT POSITIVE-AND GATE |
|
Hitachi Semiconductor (now Renesas) |
HD74LS21 |
Dual 4-input Positive AND Gates |
Renesas |
HD74LS21 |
Dual 4-input Positive AND Gates |
|
Unknown Manufacturer |
GD74LS21 |
DUAL 4-INPUT POSITIVE AND GATES |
LG Electronics |
GD74LS21 |
Dual 4-Input Positive and Gates |
|
Renesas |
HD74LS21P |
Dual 4-input Positive AND Gates |
