| 摘要 |
A clock generator (21) for use in a random access memory includes a delay circuit (35) for delaying an input signal for a predetermined time, independent of supply voltage level. The generator (21) includes a driver circuit (34) responsive to the delayed input signal and at least one constant-resistance transistor (48, 50). The transistor (48, 50) has a control electrode supplied with a predetermined constant voltage independent of the power supply voltage for providing a high ON resistance that is also independent of the power supply voltage. Through operation of the constant-resistance transistor (48, 50) the delay time of the delay circuit (35) and thus the clock signal is made independent of any variation in the power supply voltage.
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