Since the launch of the first Standard CMOS series (4000 series),
Toshiba has released successive generations of high-speed and low-voltage CMOS logic ICs.
Toshiba continues to supply CMOS logic ICs with a wide operating range (1.2 V to 18 V) suitable for various applications.
FAQ : What are the differences among the general-purpose logic IC series?
Type | Series | Part number | Operating voltage range (V) | Propagation delay time (ns)*1 | Output current (mA)*2 | Input-tolerant function*3 | Output power-down protection*3 |
---|---|---|---|---|---|---|---|
For 5-V Systems |
Standard CMOS |
TC4000B TC4500B |
3 to 18 | 200 (at 5.0V) |
±0.51 (at 5.0V) |
-*4 | - |
High-Speed CMOS | TC74HC | 2 to 6 | 23 (at 4.5V) |
±4.0 or ±6.0 (at 4.5V) |
-*4 | - | |
TC74HCT | 4.5 to 5.5 | ||||||
Advanced CMOS |
TC74AC | 2 to 5.5 | 8.5 (at 4.5V) |
±24 (at 4.5V) |
- | - | |
TC74ACT | 4.5 to 5.5 | ||||||
Very-High-Speed CMOS |
TC74VHC 74VHC TC74VHC9 74VHC9 |
2 to 5.5 | 8.5 (at 4.5V) |
±8.0 (at 4.5V) |
✔ | - | |
TC74VHCT 74VHCT |
4.5 to 5.5 | ✔ | ✔ | ||||
TC74VHCV 74VHCV |
1.8 to 5.5 | ±16 (at 4.5V) |
✔ | ✔ | |||
For low-voltage systems | Low-Voltage CMOS | TC74LCX 74LCX |
1.65 to 3.6 | 6.5 (at 3.0V) |
±24 (at 3.0V) |
✔ | ✔ |
Very-Low-Voltage CMOS | TC74VCX | 1.2 to 3.6 | 4.2 (at 2.3V) |
±24 (at 3.0V) |
✔ | ✔ |
*1: Maximum propagation delay time of typical ICs (TC4001, 74HC244, TC74AC244, 74VHC244, 74LCX244, and TC74VCX244) at 85°C, except for the TC4001 for which the maximum propagation delay time at 25°C is shown
*2: Those output current values are from DC characteristics table of the datasheet. Absolute maximum rated output current is specified separately.
*3: The terms “tolerant function” and “power-down protection” are sometimes used interchangeably. The input- and output-tolerant functions may be referred to as input and output power-down protection, respectively.
*4: TC4049BF/BP, TC4050BF/BP, TC74HC4049BP/BF/BFT, 74HC4049D, TC74HC4050BP/BF/BFT and 74HC4050D have the input-tolerant function that allows level shifting from a higher voltage to a lower voltage.